Log in

Relevant bibliographies by topics / Nonionic surfactants / Journal articles

To see the other types of publications on this topic, follow the link: Nonionic surfactants.

Journal articles on the topic 'Nonionic surfactants'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Nonionic surfactants.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Li, He Lian, Rong Hui Qu, Xue Mei Han, and Jia Jun Chen. "Surfactant-Enhanced Washing of Aged PAH Contaminated Soils: Comparison between Nonionic Surfactant and Anionic Surfactant." Applied Mechanics and Materials 522-524 (February 2014): 316–21. http://dx.doi.org/10.4028/www.scientific.net/amm.522-524.316.

Full text

Abstract:

Nonionic surfactants Triton X-100 (TX100), Triton X-305 and anionic surfactant SDS were used to desorb PAHs from contaminated soil. The surfactant loss due to sorption/ precipitation and PAH removal efficiency by each surfactant were evaluated. Due to sorption/precipitation, the apparent critical micelle concentration (CMCsoil) values for the 3 surfactants are 1.3-3.8 times their corresponding CMC values in aqueous solutions. The maximal surfactant loss follows the order of SDS>>TX100>TX305. The anionic surfactant SDS is quite different from nonionic surfactants TX100 and TX305 in PAH

APA, Harvard, Vancouver, ISO, and other styles

2

Saifullin, Emil R., Shinar Zhanbossynova, Dmitrii A. Zharkov, et al. "Nonylphenol Ethoxylate Surfactants Modified by Carboxyl Groups for Foam EOR at High-Salinity Conditions." Energies 14, no. 24 (2021): 8205. http://dx.doi.org/10.3390/en14248205.

Full text

Abstract:

High mineralization of water complicates the use of foam in reservoir conditions. Anionic–nonionic surfactants are one of the best candidates for these conditions since they have both high surface activity and salt tolerance. One of the ways to obtain anionic–nonionic surfactants is to modify nonionic surfactants by an anionic group. The type of the group and its chemical structure can strongly affect the properties of the surfactant. In this work, widely-produced nonionic surfactant nonylphenol (12) ethoxylate (NP12EO) was modified by new types of carboxylic groups through the implementation

APA, Harvard, Vancouver, ISO, and other styles

3

García-Cervilla, Raúl, Arturo Romero, Aurora Santos, and David Lorenzo. "Surfactant-Enhanced Solubilization of Chlorinated Organic Compounds Contained in DNAPL from Lindane Waste: Effect of Surfactant Type and pH." International Journal of Environmental Research and Public Health 17, no. 12 (2020): 4494. http://dx.doi.org/10.3390/ijerph17124494.

Full text

Abstract:

Application of surfactants in the remediation of polluted sites with dense nonaqueous phase liquid (DNAPL) still requires knowledge of partitioning between surfactants and pollutants in the organic and aqueous phases and the time necessary to reach this balance. Two real DNAPLs, generated as wastes in the lindane production and taken from the polluted sites from Sabiñanigo (Spain), were used for investigating the solubilization of 28 chlorinated organic compounds (COCs) applying aqueous surfactant solutions of three nonionic surfactants (E-Mulse® 3 (E3), Tween®80 (T80), and a mixture of Tween®

APA, Harvard, Vancouver, ISO, and other styles

4

Saifullin, Emil R., Polina O. Putintseva, Rustam N. Sagirov, et al. "Novel Nonylphenol Polyethoxylated Based Surfactants for Enhanced Oil Recovery for High-Mineralization Carbonate Reservoir." Energies 15, no. 3 (2022): 961. http://dx.doi.org/10.3390/en15030961.

Full text

Abstract:

Surfactant flooding can mobilize trapped oil and change the wettability of the rock to be more hydrophilic, which increases the oil recovery factor. However, the selection of surfactants is difficult in the case of high salinity conditions. In this work, we synthesized three novel anionic-nonionic surfactants based on widely used nonionic surfactant nonylphenol polyethoxylated (NPEO) and evaluated their efficiencies for enhanced oil recovery (EOR) in high salinity water (20% NaCl). The modified surfactants showed a decrease in interfacial tension (IFT) up to 10 times compared with the nonionic

APA, Harvard, Vancouver, ISO, and other styles

5

Andrunik, Magdalena, and Tomasz Bajda. "Modification of Bentonite with Cationic and Nonionic Surfactants: Structural and Textural Features." Materials 12, no. 22 (2019): 3772. http://dx.doi.org/10.3390/ma12223772.

Full text

Abstract:

Surfactant-modified clay minerals are known for their good sorption properties of both organic and inorganic compounds from aqueous solutions. However, the current knowledge regarding the effect of both cationic and nonionic surfactants on the properties of bentonite is still insufficient. Bentonite, with montmorillonite as the base clay, was modified with hexadecethyltrimethylammonium bromide (a cationic surfactant) in the amount of 1.0 cation exchange capacity (CEC) of bentonite and varying concentrations of t-octylphenoxypolyethoxyethanol (Triton X-100, a nonionic surfactant). We aimed to i

APA, Harvard, Vancouver, ISO, and other styles

6

Liu, Jianfei, and Weihong Chen. "Remediation of phenanthrene contaminated soils by nonionic–anionic surfactant washing coupled with activated carbon adsorption." Water Science and Technology 72, no. 9 (2015): 1552–60. http://dx.doi.org/10.2166/wst.2015.357.

Full text

Abstract:

Batch experiments were conducted to investigate the performance of nonionic–anionic mixed surfactants and their recovery through activated carbon. The solubilization capabilities of mixed surfactants toward phenanthrene (PHE) were reduced by addition of anionic surfactant to the mixed systems. Results showed that sorption of Triton X-100 (TX100) onto soil decreased with increasing mass fraction of sodium dodecyl sulfate (SDS) in the mixed surfactant solutions. Soil contaminated with PHE at 200 mg/kg was washed with different surfactant concentrations at various mass ratios of nonionic–anionic

APA, Harvard, Vancouver, ISO, and other styles

7

Petrovic, Lidija, Verica Sovilj, Jadranka Milanovic, and Jaroslav Katona. "A conductometric investigation of hydroxypropylmethyl cellulose/sodium dodecyl sulfate/nonionic surfactant systems." Journal of the Serbian Chemical Society 79, no. 11 (2014): 1421–32. http://dx.doi.org/10.2298/jsc140321059p.

Full text

Abstract:

Surfactant mixtures are very often used in various cosmetic and pharmaceutical products because they commonly act in synergism and provide more favorable properties than the single surfactants. At the same time, the 9 presence of polymers in mixtures of surfactants may lead to molecular interactions thereby affecting product stability and activity. For these reasons it is very important to determine the surfactant interactions influence on 1micellization and mixed micellization, as well as polymer-surfactants mixed micelles interactions. In this work we examined self-aggregation of nonionic su

APA, Harvard, Vancouver, ISO, and other styles

8

Doong, Ruey-an, Ya-Wen Wu, and Wen-gang Lei. "Surfactant enhanced remediation of cadmium contaminated soils." Water Science and Technology 37, no. 8 (1998): 65–71. http://dx.doi.org/10.2166/wst.1998.0309.

Full text

Abstract:

An investigation involving the addition of surfactant to remediate cadmium-contaminated soils was performed to determine the optimal surfactant enhanced remediation system. Anionic (sodium dodecyl sulfate, SDS), nonionic (Triton X-100, TX100) and cationic (cetyltrimethylammonium bromide, CTAB) surfactants were used to elucidate the extraction efficiency of surfactant. EDTA and diphenylthiocarbazone (DPC) were also added to enhance the extraction efficiencies of surfactants. Moreover, the pH effect was examined to determine the optimal surfactant systems. The addition of anionic and nonionic su

APA, Harvard, Vancouver, ISO, and other styles

9

Green, Jerry M. "Varying Surfactant Type Changes Quizalofop-P Herbicidal Activity." Weed Technology 11, no. 2 (1997): 298–302. http://dx.doi.org/10.1017/s0890037x00042986.

Full text

Abstract:

Varying the type of nonionic surfactant greatly changed the biological activity of the ethyl ester of quizalofop-P on giant foxtail, barnyardgrass, and corn. These studies statistically evaluated 22 surfactants with widely different chemical, physical, and surface properties. Of the 14 surfactant properties analyzed, dynamic surface tension was the most important to enhance quizalofop-P activity. Alcohol ethoxylate surfactants like Genapol® 24-L-92 and Tergitol® 15-S-7 were among the most effective adjuvants. These surfactants performed significantly better than the commercial nonionic surfact

APA, Harvard, Vancouver, ISO, and other styles

10

Almasri, Feras, Husein A. Ajwa, Sanjai J. Parikh, and Kassim Al-Khatib. "Soil Mobility of Allyl Isothiocyanate and Chloropicrin as Influenced by Surfactants and Soil Texture." HortScience 54, no. 4 (2019): 706–14. http://dx.doi.org/10.21273/hortsci13836-18.

Full text

Abstract:

Methyl bromide (MeBr) was identified as a stratospheric ozone depletory; therefore, the use of MeBr was phased out in the United States in 2005. Chloropicrin (CP) and allyl isothiocyanate (AITC) are MeBr replacements. A mixture of CP and AITC is commonly applied to broaden the pest control spectrum. These two fumigants have low soil mobility; however, their efficacy could be improved if their soil mobility were enhanced. This research was conducted to study the effects of surfactants applied at 5% (v/v) for CP mobility and AITC mobility in soils. Mobility of the CP/AITC mixture applied with a

APA, Harvard, Vancouver, ISO, and other styles

11

Li, Guoqiao, Jinyi Zhao, Lu Han, et al. "The High Interfacial Activity of Betaine Surfactants Triggered by Nonionic Surfactant: The Vacancy Size Matching Mechanism of Hydrophobic Groups." Molecules 30, no. 11 (2025): 2413. https://doi.org/10.3390/molecules30112413.

Full text

Abstract:

Alkyl sulfobetaine shows a strong advantage in the compounding of surfactants due to the defects in the size matching of hydrophilic and hydrophobic groups. The interfacial tensions (IFTs) of alkyl sulfobetaine (ASB) and xylene-substituted alkyl sulfobetaine (XSB) with oil-soluble (Span80) and water-soluble (Tween80) nonionic surfactants on a series of n-alkanes were studied using a spinning drop tensiometer to investigate the mechanism of IFT between nonionic and betaine surfactants. The two betaine surfactants’ IFTs are considerably impacted differently by Span80 and Tween80. The results dem

APA, Harvard, Vancouver, ISO, and other styles

12

Oikonomidou, Ourania, Margaritis Kostoglou, and Thodoris Karapantsios. "Structure Identification of Adsorbed Anionic–Nonionic Binary Surfactant Layers Based on Interfacial Shear Rheology Studies and Surface Tension Isotherms." Molecules 28, no. 5 (2023): 2276. http://dx.doi.org/10.3390/molecules28052276.

Full text

Abstract:

Mixtures of anionic sodium oleate (NaOl) and nonionic ethoxylated or alkoxylated surfactants improve the selective separation of magnesite particles from mineral ores during the process of flotation. Apart from triggering the hydrophobicity of magnesite particles, these surfactant molecules adsorb to the air–liquid interface of flotation bubbles, changing the interfacial properties and thus affecting the flotation efficiency. The structure of adsorbed surfactants layers at the air–liquid interface depends on the adsorption kinetics of each surfactant and the reformation of intermolecular force

APA, Harvard, Vancouver, ISO, and other styles

13

De Ruiter, Hans, Andre J. M. Uffing, and Esther Meinen. "Influence of Surfactants and Ammonium Sulfate on Glyphosate Phytotoxicity to Quackgrass (Elytrigia repens)." Weed Technology 10, no. 4 (1996): 803–8. http://dx.doi.org/10.1017/s0890037x00040835.

Full text

Abstract:

Field and greenhouse experiments were conducted to investigate the influence of two cationic alkylamine surfactants, three nonionic surfactants, and ammonium sulfate on the performance of glyphosate (isopropylamine salt) against quackgrass. In the field experiments, the reinfestation of quackgrass in the year after treatment was zero or negligible in all plots that received the recommended rate of glyphosate (1.44 kg ae/ha). At one-fourth of the recommended rate (0.36 kg ae/ha) the glyphosate-adjuvant combinations also severely inhibited the reinfestation of quackgrass. At the low herbicide ra

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Ya Li, Yu Jing, and Qiang Zhen. "The Effect of Surfactant on the Morphology of SnO₂ Nanoarrays." Advanced Materials Research 338 (September 2011): 495–98. http://dx.doi.org/10.4028/www.scientific.net/amr.338.495.

Full text

Abstract:

The morphology of SnO2nanoarrays prepared on indium tin oxide (ITO) substrates by hydrothermal method can be controlled through using different surfactants. The surfactants play an important role in influencing the morphology and size of SnO2nanoarrays. The rod-like nano-arrays prepared by using cationic surfactant, disordered structure randomly assembled by nanoparticle obtained by using anionic surfactant, the flower-like nanoarrays synthesized by using nonionic surfactant. Furthermore, the effect of the amount of nonionic surfactant-polyvinyl pyrrolidone(PVP) on the morphology and size of f

APA, Harvard, Vancouver, ISO, and other styles

15

Rokhati, Nur, Tutuk Djoko Kusworo, Aji Prasetyaningrum, Nur ‘Aini Hamada, Dani Puji Utomo, and Teguh Riyanto. "Effect of Surfactant HLB Value on Enzymatic Hydrolysis of Chitosan." ChemEngineering 6, no. 1 (2022): 17. http://dx.doi.org/10.3390/chemengineering6010017.

Full text

Abstract:

Nonionic surfactants are reported as being able to enhance enzyme stability and increase the conversion of enzymatic reactions. Surfactant-assisted enzymatic hydrolysis conversion is affected by surfactant HLB values. This work investigated the influence of nonionic surfactants with different HLB values on chitosan enzymatic hydrolysis using cellulase enzyme by measuring the reducing sugars formation, viscosity, and molecular weight of hydrolyzed chitosan. A characterization analysis of hydrolyzed products was also carried out. A higher HLB value exhibits a better enzymatic chitosan hydrolysis

APA, Harvard, Vancouver, ISO, and other styles

16

Ristic, Nebojsa, Ivica Dodic, and Ivanka Ristic. "The influence of surfactant structure on the dyeing of polyamide knitting with acid dyes." Chemical Industry and Chemical Engineering Quarterly 24, no. 2 (2018): 117–25. http://dx.doi.org/10.2298/ciceq161102025r.

Full text

Abstract:

The influence of nonionic and anionic surfactants on the dyeing kinetics of polyamide 6 knitting was studied in this work. The influence of surfactants on the dyeing process is presented by determining the kinetic and thermodynamic parameters of dyeing. Nonionic surfactants create unstable polydisperse associates which reduce the concentration of individual ionic forms of dyes in the solution, slowing down the dyeing process, with the dyeing having higher leveling. Interactions were confirmed by measuring the cloud point of nonionic surfactants and they are stronger with more hydrophobic dye a

APA, Harvard, Vancouver, ISO, and other styles

17

Lai, Chiu-Chun, Hao-Wen Lo, Chang-Mou Wu, Kuei-Chi Lee, Yu-Lin Kuo, and Ching-Nan Huang. "Surface-activity of anionic–nonionic surfactants and the dispersibility of TiO2 particles in aqueous solution." Modern Physics Letters B 33, no. 14n15 (2019): 1940001. http://dx.doi.org/10.1142/s0217984919400013.

Full text

Abstract:

This study synthesizes the anionic–nonionic surfactants by reacting tripropylene glycol, maleic anhydride, polyoxyethylenated stearyl ether and fumaric acid. The properties of a series of anionic–nonionic surfactants that feature hydrophilic groups with different lengths of chains are measured. The critical micelle concentration (CMC) value for these surfactants decreases as the length of the polyoxyethylene chain increases. This shows that long polyoxyethylene chains promote pre-micelle formation in the aqueous phase and adsorption at the interface surrounding the aqueous phase. The dispersio

APA, Harvard, Vancouver, ISO, and other styles

18

Edwards, D. A., Z. Liu, and R. G. Luthy. "Interactions Between Nonionic Surfactant Monomers, Hydrophobic Organic Compounds and Soil." Water Science and Technology 26, no. 1-2 (1992): 147–58. http://dx.doi.org/10.2166/wst.1992.0395.

Full text

Abstract:

Nonionic surfactant at aqueous-phase concentrations less than the CMC can affect the distribution of hydrophobic organic compounds (HOCs) in soil/aqueous systems. Sub-CMC levels of nonionic surfactant can enhance the apparent aqueous-phase HOC solubility, increase the soil organic carbon content due to surfactant sorption, and modify the value of the HOC soil/aqueous distribution coefficient. Experimental data quantifying these effects are presented for several HOCs and nonionic surfactants. A method is proposed for predicting the distribution of HOC between soil and bulk solution with sub-CMC

APA, Harvard, Vancouver, ISO, and other styles

19

Blus, Kazimierz, and Jadwiga Bemska. "EFFECT OF NONIONIC SURFACTANTS ON THE DYEING PROCESS OF CELLULOSE FIBRES WITH C.I. REACTIVE BLUE 217." AUTEX Research Journal 10, no. 3 (2010): 64–68. http://dx.doi.org/10.1515/aut-2010-100302.

Full text

Abstract:

Abstract This investigation addressed the role of nonionic surfactants on the sorption of C.I. Reactive Blue 217 by cellulose fibres, focusing on the influence of the surfactant concentration and type on the spectroscopic properties of this dye. It was found that surfactants in dyeing baths change the spectroscopic properties of dye solutions, resulting in the decomposition of aggregates and agglomerates to form a surfactant-dye complex. The surfactants in baths counteract the aggregating action of sodium chloride. The performed studies concerned the sorption kinetics of dye from dyeing baths

APA, Harvard, Vancouver, ISO, and other styles

20

Liu, Z., D. A. Edwards, and R. G. Luthy. "Nonionic Surfactant Sorption onto Soil." Water Science and Technology 26, no. 9-11 (1992): 2337–40. http://dx.doi.org/10.2166/wst.1992.0731.

Full text

Abstract:

Experiments in batch soil/aqueous systems were conducted to evaluate the sorption onto soil of four nonionic surfactants. At bulk solution surfactant concentration less than the respective critical micelle (aggregate) concentration (CMC or CAC), sorption can be assessed using a surface tension technique and can be characterized with a Freundlich isotherm. At bulk solution surfactant concentrations equal to or greater than the critical concentration, sorption of the micelle-forming surfactants can be assessed by a spectrophotometric technique with an azo dye and had a constant value; sorption o

APA, Harvard, Vancouver, ISO, and other styles

21

Kochkodan, Olga, Victor Maksin, and Tetyana Semenenko. "Adsorption of Sodium Hexadecyl Sulfate and Triton X from Binary Aqueous Solutions at Thermally Graphitized Carbon Black." Periodica Polytechnica Chemical Engineering 65, no. 1 (2020): 72–79. http://dx.doi.org/10.3311/ppch.15085.

Full text

Abstract:

Adsorption of anionic sodium hexadecyl sulfate (SHS) and nonionic Triton X surfactants with different ethoxylation degree: TX-45, TX-100 and TX-300 from their individual and mixed aqueous solutions at the surface of thermally graphitized carbon black (CB) was studied. It was found that at low solution concentrations addition of the nonionic surfactant increases the amount of SHS adsorbed from SHS/Triton X mixtures compared to SHS amount adsorbed from its individual solution. These findings might be explained by decreasing in electrostatic repulsion between SHS ions due to inclusion of the mole

APA, Harvard, Vancouver, ISO, and other styles

22

Lee, Dal-Heui, Robert D. Cody, and Blythe L. Hoyle. "Comparison of six surfactants in removing toluene and trichlorobenzene from a sandy soil under laboratory conditions." Canadian Geotechnical Journal 38, no. 6 (2001): 1329–34. http://dx.doi.org/10.1139/t01-044.

Full text

Abstract:

The effectiveness of four food-grade and two industrial surfactants to remove toluene or 1,2,4-trichlorobenzene added to an Iowa soil was evaluated in batch and column experiments. One of the anionic food-grade surfactants, disodium n-hexadecyl diphenyloxide disulfonate (Dowfax 8390), was more effective than the other surfactants in shaken batch experiments. The maximum recoveries of the added toluene (57%) or 1,2,4-trichlorobenzene (71%) were obtained with one surfactant wash plus two water rinses. Dowfax 8390 also yielded the highest recovery of toluene (75%) or 1,2,4-trichlorobenzene (83%)

APA, Harvard, Vancouver, ISO, and other styles

23

Wagner, Martin, and H. Johannes Pöpel. "Surface active agents and their influence on oxygen transfer." Water Science and Technology 34, no. 3-4 (1996): 249–56. http://dx.doi.org/10.2166/wst.1996.0438.

Full text

Abstract:

Oxygen transfer rates of fine bubble aeration systems in uniform arrangement are reduced down to 40% to 70% in wastewater compared to clean water conditions. Surfactants in wastewater are the main reason for the inferior and therefore uneconomic performance. The influence of different types of surfactants (anionic and nonionic) and of their concentration on oxygen transfer is investigated at various properties of pure water (content of electrolytes, hardness) by means of extensive experiments. The main results of the investigations are:in dependence of the type of surfactant, its concentration

APA, Harvard, Vancouver, ISO, and other styles

24

Korypaeva, V. V., E. F. Bukanova, E. V. Eskova, and V. A. Sokhraneva. "Stabilisation of cosmetic compositions using combined emulsifiers." Fine Chemical Technologies 16, no. 3 (2021): 241–51. http://dx.doi.org/10.32362/2410-6593-2021-16-3-241-251.

Full text

Abstract:

Objectives. This study investigated the surface properties and micelle formation of combined stabilizers, which are a mixture of ionic and nonionic surfactants or different nonionic surfactants, to establish a correlation between the composition of stabilizers and the colloidal–chemical properties of direct emulsions obtained in their presence.Methods. The surface tension at the interface between the aqueous solutions of the combined stabilizers with air and toluene was measured using a digital tensiometer. The sedimentation stability of the emulsions was assessed by the volume of the exfoliat

APA, Harvard, Vancouver, ISO, and other styles

25

Pisárčik, Martin, Mája Polakovičová, and Ferdinand Devínsky. "Solubilisation of camptothecin by nonionic surfactants and alkyldimethylamine oxides." Open Chemistry 11, no. 4 (2013): 619–28. http://dx.doi.org/10.2478/s11532-012-0199-7.

Full text

Abstract:

AbstractThe solubilisation of poorly soluble antineoplastic drug camptothecin by nonionic surfactants (polysorbates and octylphenol ethoxylates) and alkyldimethylamine oxide surfactants with the alkyl chain length 8 to 16 carbon atoms was investigated. The hydrophobicity of the solubilising agent turned out to be the primary structural parameter controlling the solubility efficiency of camptothecin in an aqueous solution. The quantitative parameter of solubilisation (drug loading coefficient) provided values in the range of 0.1–1.2% and 0.1–1.0% for alkyldimethylamine oxides and nonionic surfa

APA, Harvard, Vancouver, ISO, and other styles

26

Slavova, Tatiana, Rumyana Stanimirova, Krastanka Marinova, and Krassimir Danov. "Cleansing Mechanisms and Efficacy on Artificial Skin." Molecules 30, no. 8 (2025): 1813. https://doi.org/10.3390/molecules30081813.

Full text

Abstract:

A systematic study on the mechanisms of cleansing artificial skin by solutions of widely used in personal care surfactants disodium laureth sulfosuccinate (DSLSS), sodium laureth sulfate (SLES), sodium dodecyl sulfate (SDS), dodecyl trimethyl ammonium bromide (DTAB), and coco glucoside (CG), is presented. The systematic characterization of soil removal from artificial skin revealed two primary cleansing mechanisms: emulsification and roll-up. Emulsification occurs in systems with very low interfacial tension, such as sebum in SLES solutions, while dimethicone soil was only removed by roll-up.

APA, Harvard, Vancouver, ISO, and other styles

27

Zhang, Hong Jun, and Meng Zheng. "Impact Evaluation and Effect of Surfactant to Oil Displacement System." Advanced Materials Research 962-965 (June 2014): 583–86. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.583.

Full text

Abstract:

In this paper, the influence of mahogany sulfonate and nonionic surfactant to oil displacement system viscosity is evaluated. The effect of the two kinds of surfactants was compared by oil displacement test, the results showed that nonionic surfactant not only had no effect on oil displacement system viscosity, but also had a good oil displacement effect.

APA, Harvard, Vancouver, ISO, and other styles

28

Gataullin, Azat R., Svetlana A. Bogdanova, and Yuriy G. Galyametdinov. "ADSORPTION OF ETHOXYLATED ISONONYLPHENOLS ON CARBON NANOTUBES FROM AQUEOUS SOLUTIONS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 3 (2021): 46–51. http://dx.doi.org/10.6060/ivkkt.20216403.6192.

Full text

Abstract:

One of the approaches to solving the problem of carbon nanotubes dispersions obtaining is the use of nonionic surfactants in the processes of ultrasonication of carbon nanostructures in aqueous solutions. The effect of nonionic surfactants on dispersing and stabilizing is determined by the adsorption interaction of surfactant molecules with a graphene surface, the study of which can reveal important patterns of stable carbon nanotubes dispersions obtaining during ultrasonic treatment in liquid media. The aim of this work was to study the adsorption of ethoxylated isononylphenols with a variabl

APA, Harvard, Vancouver, ISO, and other styles

29

Babitskaya, K. I., V. V. Konovalov, and T. V. Chikhereva. "STUDY OF MICELLES SIZE INFLUENCE ON THE EFFECTIVENESS OF RESIDUAL OIL DISPLACEMENT." Oil and Gas Studies, no. 5 (October 30, 2015): 36–40. http://dx.doi.org/10.31660/0445-0108-2015-5-36-40.

Full text

Abstract:

This paper presents the results of laboratory studies of the influence of the size of compound micelles created by a mixture of anionic surfactants, received from low quality hydrocarbon raw materials, and nonionic surfactants on the efficiency of residual oil displacement from highly water-encroached beds. It has been proved that varying the anionic/nonionic surfactant proportion in the mixture influences considerably on the size of the micelles formed, their interfacial activity and efficiency in high-viscosity oil displacement.

APA, Harvard, Vancouver, ISO, and other styles

30

Sharma, Lalit, Subhash Chander Sharma, and Saroj. "Studies in Asymmetric Epoxidation of Chalcone Using Quaternary Salts and Nonionic Surfactants Based on 6-Amino-6-deoxy-glucose as Chiral Phase Transfer Catalysts." E-Journal of Chemistry 8, no. 3 (2011): 1293–97. http://dx.doi.org/10.1155/2011/873253.

Full text

Abstract:

Quaternary salts and nonionic surfactants based on 6-amino-6-deoxy-glucose were explored as chiral phase transfer catalysts for the asymmetric epoxidation of chalcone. Quaternary salts used in the present study, were void of any branched chain or long hydrocarbon chain, whereas the sugar based nonionic surfactants have a long hexadecyl moiety as tail. It was observed that quaternary salts showed no activity as phase transfer catalysts but sugar based nonionic surfactants acted as chiral phase transfer catalysts. It was also revealed that hydrophilicity of the surfactant favors more yield where

APA, Harvard, Vancouver, ISO, and other styles

31

Zhdanova, Galina, Danila Cherkasov, Olga Vyatchina, Tatyana Yampolskaya, Qixing Zhou, and Devard Stom. "The influence of surfactants of different classes on the toxicity of diesel fuel for Saccharomycetes." E3S Web of Conferences 463 (2023): 02029. http://dx.doi.org/10.1051/e3sconf/202346302029.

Full text

Abstract:

The effect on the survival of the yeast S. cerevisiae of mixtures of diesel fuel (summer variety) with four representatives of different classes of surfactants – cationic (cetyltrimethylammonium bromide), anionic (sodium dodecyl sulfate), nonionic (Tween-80) and polymeric (polyvinyl alcohol) – was studied. It was shown that diesel fuel and two representatives of the classes of anionic and cationic surfactants (sodium dodecyl sulfate and cetyltrimethylammonium bromide) in the mixture exhibited higher toxicity than when exposed individually. At the same time, the toxicity of diesel fuel mixed wi

APA, Harvard, Vancouver, ISO, and other styles

32

Moater, Elena Irina, Cristiana Radulescu, and Ionica Ionita. "The Spectrophotometric and Tensiometric Study of Interaction Between Nonionic Surfactants with Acid Dye." Revista de Chimie 68, no. 5 (2017): 1010–13. http://dx.doi.org/10.37358/rc.17.5.5600.

Full text

Abstract:

The study of the interaction between nonionic surfactants and acid dyes is very important in clarifying the mechanism of wool dyeing and colors preservation and also for the washing conditions determination. This paper presents the spectrophotometric and tensiometric data of the interaction between the alkyl polyglucosides surfactants class with new synthesized dye, from the class of azoic dyes derived from 3H-aza-1-oxa-2H-tioxo-5,8-fenalendisulfonic acid. A multiplicity of transitions is observed, when the surface tension of aqueous solutions of nonionic surfactant (APG) in the presence of th

APA, Harvard, Vancouver, ISO, and other styles

33

Brüggemann, Daniel, Tahereh Shojamejer, Michelle Tupinamba Lima, Dzenna Zukova, Rahel Marschall, and Reinhard Schomäcker. "The Performance of Carbonate-Modified Nonionic Surfactants in Microplastic Flotation." Water 15, no. 5 (2023): 1000. http://dx.doi.org/10.3390/w15051000.

Full text

Abstract:

For a group of nonionic surfactants with polar head groups synthesized by the copolymerization of ethylene oxide and carbon dioxide, the potential for their application in the foam flotation of microplastic particles was investigated. Their performance was compared to conventional that of nonionic surfactants and correlated with their adsorption behavior at the water–air surface through the maximum-bubble-pressure technique. The carbonate content of the surfactant head groups increased the biodegradability of the surfactants and affected their foaming properties and their performance in the fl

APA, Harvard, Vancouver, ISO, and other styles

34

Halleb, Aymen, Mitsutoshi Nakajima, Fumio Yokoyama, and Marcos Antonio Neves. "Effect of Surfactants on Reverse Osmosis Membrane Performance." Separations 10, no. 3 (2023): 168. http://dx.doi.org/10.3390/separations10030168.

Full text

Abstract:

The aim of this study was to evaluate the performance of a reverse osmosis (RO) membrane in surfactant removal using various surfactant model aqueous solutions. The separation tests were performed with laboratory scale units in a dead-end configuration. Cellulose Acetate (CA) and Polyamide (PA) RO membranes were used with nonionic, anionic, or cationic surfactants at a wide range of concentrations. Membrane performance was evaluated using permeate flux and total organic carbon (TOC) rejection. The effects of surfactant type and concentration on RO membranes were assessed. Permeate flux of the

APA, Harvard, Vancouver, ISO, and other styles

35

Jordan, David L., P. Roy Vidrine, James L. Griffin, and Daniel B. Reynolds. "Influence of Adjuvants on Efficacy of Clethodim." Weed Technology 10, no. 4 (1996): 738–43. http://dx.doi.org/10.1017/s0890037x00040744.

Full text

Abstract:

Field experiments evaluated barnyardgrass, broadleaf signalgrass, and rhizomatous johnsongrass control with clethodim applied with Agri-Dex® crop oil concentrate at 1.0% v/v, the adjuvant Dash® at 1.0% v/v, the methylated seed oil Sun-It II® at 1.0% v/v, a blend of silicone surfactant plus methylated seed oil (Dyne-Amic® at 0.5% v/v) or nonionic surfactant (Kinetic® HV at 0.125% v/v), two silicone surfactants (Sylgard® 309 and Silwet L-77® surfactant) at 0.125% v/v, two other conventional nonionic surfactants (Latron AG-98™ and Induce®) at 0.25% v/v, and the acidified soya phospholipid LI-700®

APA, Harvard, Vancouver, ISO, and other styles

36

Sucitawati, Putu Ayu, Lutfi Suhendra, and G. P. Ganda Putra. "Karakteristik Mikroemulsi a-Tokoferol pada Perbandingan Campuran Tiga Surfaktan Nonionik dan Lama Pengadukan." JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI 9, no. 1 (2021): 33. http://dx.doi.org/10.24843/jrma.2021.v09.i01.p04.

Full text

Abstract:

Microemulsions have thermodynamics and stable kinetics as carriers of ?-tocopherol compounds. This study aimed to know the effect of mixtures ratio of three nonionic surfactants and stiring time on the characteristics of ?-tocopherol microemulsion, as well as to obtain the best stiring time and mixture ratio of three nonionic surfactants to produce ?-tocopherol microemulsion. This experiment used a randomized block design with two factors. The first factor is the ratio of a mixture of three nonionic surfactants with Hydrophilic-Lipophilic Balance (HLB) 14.5. The second factor is stirring time.

APA, Harvard, Vancouver, ISO, and other styles

37

Wang, Jiping, Yongbo Zhang, Huashu Dou, and Liujun Pei. "Influence of Ethylene Oxide Content in Nonionic Surfactant to the Hydrolysis of Reactive Dye in Silicone Non-Aqueous Dyeing System." Polymers 10, no. 10 (2018): 1158. http://dx.doi.org/10.3390/polym10101158.

Full text

Abstract:

Silicone reverse dyeing technology provides an important means of saving water and salts-free in the textile dyeing industry. The interactions between dyes and surfactants may influence the hydrolysis of dye during dyeing. In this investigation, the effect of ethylene oxide content in nonionic surfactant on the hydrolytic reaction of reactive dye was firstly investigated in a siloxane reverse emulsion dyeing system. Compared with no surfactants, the hydrolytic reaction of vinyl sulfone reactive dye was a slowdown when some nonionic surfactants were used during dyeing. Usually, the hydrophobic

APA, Harvard, Vancouver, ISO, and other styles

38

Chiappisi, Leonardo, Stephen David Leach, and Michael Gradzielski. "Precipitating polyelectrolyte–surfactant systems by admixing a nonionic surfactant – a case of cononsurfactancy." Soft Matter 13, no. 29 (2017): 4988–96. http://dx.doi.org/10.1039/c7sm00747g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Mitru, Daniel, Gheorghe Nechifor, Stefania Gheorghe, et al. "Removal and Effects of Surfactants in Activated Sludge System." Revista de Chimie 71, no. 1 (2020): 100–106. http://dx.doi.org/10.37358/rc.20.1.7819.

Full text

Abstract:

The widespread use of detergents has raised concern with regard to the environmental pollution caused by their active substances, which are biorefractory, toxic or persistent. Even though anionic and non-ionic surfactants often used in commercial detergents composition are reasonably degradable under aerobic conditions and not particularly toxic at low concentrations, high concentration of surfactants influenced the activated sludge activity and are harmful for the aquatic environment. In the literature, data on the biodegradability and/or ecotoxicity of a certain type of surfactant (anionic,

APA, Harvard, Vancouver, ISO, and other styles

40

Girja, Shanker Chaubey, and N. Bhat S. "Role of surfactants on the mutual solubility of phenol-water system." Journal of Indian Chemical Society Vol. 76, Mar 1999 (1999): 138–39. https://doi.org/10.5281/zenodo.5853260.

Full text

Abstract:

Department of Chemistry, North-Eastern Hill University, Shillong-793 003, India <em>Manuscript received 28 April 1998, revised 21 September 1998, accepted 15 October 1998</em> The effect of addition of surfactants, namely, sodium dodecyl sulfate (anionic), cetylpyridinium chloride (cationic) and Triton X-100 (nonionic) on the critical solution temperature (CST) of phenol-water system has hecn studied. The CST of the system which increases initially, decreases with further addition of ionic surfactants, whereas the nonionic surfactant continuously increases the CST. The composition of phenol at

APA, Harvard, Vancouver, ISO, and other styles

41

Girja, Shanker Chaubey, and N. Bhat S. "Role of surfactants on the mutual solubility of phenol-water system." Journal of Indian Chemical Society Vol. 76, Mar 1999 (1999): 138–39. https://doi.org/10.5281/zenodo.5853320.

Full text

Abstract:

Department of Chemistry, North-Eastern Hill University, Shillong-793 003, India <em>Manuscript received 28 April 1998, revised 21 September 1998, accepted 15 October 1998</em> The effect of addition of surfactants, namely, sodium dodecyl sulfate (anionic), cetylpyridinium chloride (cationic) and Triton X-100 (nonionic) on the critical solution temperature (CST) of phenol-water system has been studied. The CST of the system which increases initially, decreases with further addition of ionic surfactants, whereas the nonionic surfactant continuously increases the CST. The composition of phenol at

APA, Harvard, Vancouver, ISO, and other styles

42

Ahmed, M. H. M. "Preparation and evaluation of sulphonamide nonionic surfactants." Grasas y Aceites 61, no. 1 (2009): 7–15. http://dx.doi.org/10.3989/gya.053509.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Qi, Zi Yuan, Ye Fei Wang, Hai Yang Yu, and Xiao Li Xu. "Study on Wettability Alteration of Quartz Surface by Surfactants." Advanced Materials Research 962-965 (June 2014): 539–43. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.539.

Full text

Abstract:

In order to study the effect of surfactants on wettability of quartz surface, the dynamic contact angles of different surfactants on water-wet and oil-wet quartz surfaces were measured. The experimental results showed that the advancing contact angles of cationic surfactants, anionic surfactants and nonionic surfactants on oil-wet quartz surfaces decrease with the increase of surfactant concentrations; the wettability of water-wet quartz plates remains water-wet after treated by all three kinds of surfactants. Surfactants can reverse the wettability from oil-wet to water-wet at low concentrati

APA, Harvard, Vancouver, ISO, and other styles

44

Akbar, Javed R., Rubena Deubry, D. Gerrard Marangoni, and Shawn D. Wettig. "Interactions between gemini and nonionic pharmaceutical surfactants." Canadian Journal of Chemistry 88, no. 12 (2010): 1262–70. http://dx.doi.org/10.1139/v10-135.

Full text

Abstract:

The nature and strength of the interactions between the 1,3-bis(dimethylhexadecyl)propanediammonium dibromide (16-3-16) gemini surfactant and a homologous series of nonionic polyoxyethylene (20) sorbitan ester surfactants having laurate (Tween 20), stearate (Tween 60), or oleate (Tween 80) alkyl tails has been investigated. The critical micelle concentration (cmc) values of the mixed gemini–tween systems were determined using the du Noüy ring surface tension method, and the results have been analyzed using Clint’s, Rubingh’s, Motomura’s, and Maeda’s theories for mixed micellar systems. The res

APA, Harvard, Vancouver, ISO, and other styles

45

Bruheim, Per, and Kjell Eimhjellen. "Chemically emulsified crude oil as substrate for bacterial oxidation: differences in species response." Canadian Journal of Microbiology 44, no. 2 (1998): 195–99. http://dx.doi.org/10.1139/w97-137.

Full text

Abstract:

Four bacterial species were tested for their abilities to oxidize alkanes in crude oil in water emulsions. The emulsions were prepared by nonionic sorbitan ester and polyoxyethylene ether surfactants. The oxidation rates were measured as initial attack on the emulsions by resting cells pregrown in crude oil media. The bacteria responded differently and both positive and negative effects of surfactant amendment were observed. The same surfactant affected various bacteria differently and the response to the surfactant amendment depended on the physiological state of the bacteria, i.e., exponenti

APA, Harvard, Vancouver, ISO, and other styles

46

Zoller, U., and M. Hushan. "The nonionic surfactant pollution profile of Israels Mediterranean Sea coastal water." Water Science and Technology 42, no. 1-2 (2000): 429–35. http://dx.doi.org/10.2166/wst.2000.0350.

Full text

Abstract:

Anionic and nonionic surfactants, as core components of detergent formulations, contribute significantly to the pollution profile of sewage and wastewaters of all kinds. In Israel about 15% of the total amount of ca. 4×108 m3/year of sewage is discharged, directly, or via receiving streams/rivers, into the Mediterranean Sea. Based on our previous findings that about 85% of the nonionic surfactants in the country sewage are nonbiodegradable alkylphenol-based ethoxylates, we have undertaken this study, aimed at mapping the receiving eastern Mediterranean seawater with respect to its nonionic sur

APA, Harvard, Vancouver, ISO, and other styles

47

Zoller, U., and M. Hushan. "The nonionic surfactant pollution profile of Israel Mediterranean Sea coastal water." Water Science and Technology 43, no. 5 (2001): 245–50. http://dx.doi.org/10.2166/wst.2001.0296.

Full text

Abstract:

Anionic and nonionic surfactants, as core components of detergent formulations, contribute significantly to the pollution profile of sewage and wastewaters of all kinds. In Israel about 15% of the total amount of ca. 4×108 m3/year of sewage is discharged, directly, or via receiving streams/rivers, into the Mediterranean Sea. Based on our previous findings that about 85% of the nonionic surfactants in the country's sewage are nonbiodegradable alkylphenol-based ethoxylates, we have undertaken this study, aiming at mapping the receiving eastern Mediterranean seawater with respect to its nonionic

APA, Harvard, Vancouver, ISO, and other styles

48

Riswati, Shabrina Sri, Wisup Bae, Changhyup Park, Asep K. Permadi, and Adi Novriansyah. "Nonionic Surfactant to Enhance the Performances of Alkaline–Surfactant–Polymer Flooding with a Low Salinity Constraint." Applied Sciences 10, no. 11 (2020): 3752. http://dx.doi.org/10.3390/app10113752.

Full text

Abstract:

This paper presents a nonionic surfactant in the anionic surfactant pair (ternary mixture) that influences the hydrophobicity of the alkaline–surfactant–polymer (ASP) slug within low-salinity formation water, an environment that constrains optimal designs of the salinity gradient and phase types. The hydrophobicity effectively reduced the optimum salinity, but achieving as much by mixing various surfactants has been challenging. We conducted a phase behavior test and a coreflooding test, and the results prove the effectiveness of the nonionic surfactant in enlarging the chemical applicability

APA, Harvard, Vancouver, ISO, and other styles

49

HONCIUC, MARIA, C. BORLESCU, and CARMEN POPA. "NEW LYOTROPIC LIQUID CRYSTALS BASED ON SURFACTANTS." International Journal of Modern Physics B 16, no. 23 (2002): 3545–60. http://dx.doi.org/10.1142/s0217979202012104.

Full text

Abstract:

We presented here the phase diagrams and the influence of the external electric field on the lyotropic liquid crystal phase (LLC) for some binary and pseudoternary systems based on surfactants. Binary systems are of the type surfactant/water (S/W) and the pseudoternary systems are of the type surfactant/oil/water (S/O/W). Two surfactants have been used: the lauryl alcohol ethoxilated with 11 molecules of ethylene oxide (LA11EO), which is a nonionic compound, and a mixture of LA11EO with the cationic surfactant named alkyl C 12– C 14-dimethyl-benzyl ammonium chloride. Based on these two types o

APA, Harvard, Vancouver, ISO, and other styles

50

Klovak, Viktoriia, and Kulichenko Sergey. "Spectrophotometric and Fluorescent Determination of Hydrophobic Organic Cations in the Surfactant-modified System Mo(VI)– Bromopyrogallol Red." Methods and Objects of Chemical Analysis 18, no. 2 (2023): 55–62. http://dx.doi.org/10.17721/moca.2023.55-62.

Full text

Abstract:

The spectrophotometric and fluorescent characteristics of the surfactant-modified molybdenum (VI) – bromopyrogallol red reagent system were studied. The hydrophobic modification was achieved by adding cationic, nonionic surfactants, or, accordingly, mixtures of surfactant modifiers into the metal reagent system. Modification of the metal reagent system with a nonionic surfactant leads to a decrease in the limit of detection of the hydrophobic organic cation in the molybdenum (VI) – bromopyrogallol red system by the fluorescence method and an increase in the contrast of the spectrophotometric r

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!