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Journal articles on the topic 'Hydrolysed ferric chloride solutio'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

H., M. MODY, M. OZA P., and P. PANDYA V. "Thermally Stable and Acidic Iron Oxide Pillared Clay." Journal of Indian Chemical Society Vol. 70, Jan 1993 (1993): 11–13. https://doi.org/10.5281/zenodo.5902648.

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Central Salt & Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar-364 002 <em>Manuscript received 23 March 1992, revised 7 September 1992, accepted 10 November 1992</em> Iron oxide pillared clay was prepared by Interaction of bentonite with partially hydrolysed ferric chloride solution. The product was characterised by XRD and surface area (SA) measurement Basal spacing and SA of the product, after calcination at 300<sup>º</sup>, were found to be 14.7 Å and 204 m<sup>2 </sup>g-<sup>1</sup> respectively. It retained high SA (140 m<sup>2</sup> g-<sup>1</sup>) ev

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2

Zhang, Yan Li, Shan Ping Li, Qing Tao Zhang, Ze He He, and Xiao Ming Li. "Production of Polyaluminum Ferric Chloride from Blast Furnace Dust." Advanced Materials Research 1030-1032 (September 2014): 151–54. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.151.

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Our goal was to produce a complex inorganic polymer flocculant containing poly aluminum ferric chloride (PAFC) from blast furnace dust. The optimum reaction conditions to achieve high extraction efficiency of iron and aluminum were obtained through a series of batch experiments. PAFC was synthesized by controlling the hydrolysis conditions of iron and aluminum. Extraction efficiency of iron and aluminum oxides from blast furnace dust was affected greatly by reaction parameters such as temperature, time and hydrochloric acid consumption. The dissolution rate of iron was 67.61% and the dissoluti

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3

Hassan, Nursia, Tan Li Wen, Nur Amirah Khairina Khairil Anwar, and Ani Idris. "Ionic solution pretreatment of oil palm empty fruit bunch to produce sugars." BioResources 16, no. 1 (2021): 1816–24. http://dx.doi.org/10.15376/biores.16.1.1816-1824.

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Ferric (III) chloride, when prepared as an ionic solution, was used to pretreat oil palm empty fruit bunch (OPEFB) before undergoing enzymatic hydrolysis to convert into value-added products. The pretreatment was assisted with microwave irradiation to improve the degradation of recalcitrant structure of lignocellulosic materials with minimum time. The effects of salt concentration, temperature, and duration of pretreatment on the chemical composition of OPEFB and total reducing sugar (TRS) yield were investigated. The results revealed that the best pretreatment occurred at pretreatment time of

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4

Morales, M. P., T. González-Carreño, and C. J. Serna. "The formation of a–Fe2O3 monodispersed particles in solution." Journal of Materials Research 7, no. 9 (1992): 2538–45. http://dx.doi.org/10.1557/jmr.1992.2538.

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Uniform α–Fe2O3 particles of varying axial ratios have been prepared from hydrolyzed ferric chloride solutions at 100 °C. In the absence of phosphate anions, spherical particles were obtained by a mechanism that follows the classical LaMer and Dinegar scheme. However, in the presence of phosphates ellipsoidal particles were observed, with their formation taking place through an aggregation process from smaller primary particles of α–Fe2O3. It is also shown that all particles are monocrystalline irrespective of their formation mechanism.

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5

ZABULONOV, Yu L., V. M. KADOSHNIKOV, T. I. MELNYCHENKO, H. P. ZADVERNYUK, S. V. KUZENKO, and Yu V. LYTVYNENKO. "Geochemical Behavior of Ferric Hydroxide Nanodispersion Under the Influence of Weak Magnetic Fields." Mineralogical journal 43, no. 2 (2021): 74–79. http://dx.doi.org/10.15407/mineraljournal.43.02.074.

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The change of geochemical properties of ferric hydroxide nanoparticles under the influence of a weak magnetic field was investigated. Ferric hydroxide nanoparticles formed as a result of the interaction of iron-containing minerals with natural aqueous solutions are of importance for geochemical processes, especially hypergenesis, sedimentation, and soil formation. The hydrolysis of ferric chloride in hot water (t = 70-75°С) was used to obtain ferric hydroxide nanoparticles under laboratory conditions. The nanodispersion (colloidal solution) was exposed to a weak pulsed magnetic field. The spec

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6

Duan, J., N. J. D. Graham, and F. Wilson. "Coagulation of humic acid by ferric chloride in saline (marine) water conditions." Water Science and Technology 47, no. 1 (2003): 41–48. http://dx.doi.org/10.2166/wst.2003.0012.

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The coagulation of a model seawater-humic acid solution with a hydrolysis metal salt (FeCl3) has been studied by monitoring floc size, solution pH, and zeta potential. The kinetic features of the orthokinetic coagulation have been demonstrated in relation to coagulant dosages, solution pH and zeta potential. Humic acid removal and floc charge reduction increased with coagulant dosage. Adjusting the solution pH prior to coagulation had a substantial effect on the treatment performance. By pH adjustment to pH 6, the greatest humic acid removal (by coagulation and subsequent membrane filtration)

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7

Makarov, Ye. "ELECTROFLOTATION TREATMENT OF DAIRY WASTEWATER: CHEMICAL-TECHNOLOGICAL ASPECTS." Municipal economy of cities 1, no. 161 (2021): 141–47. http://dx.doi.org/10.33042/2522-1809-2021-1-161-141-147.

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Experimental researches are carried out and chemical-technological laws of reagent-electroflotation treatment of sewage of dairies are established. The wastewater of the milk processing enterprise of Sumy region was selected for the study. For reagent wastewater treatment, ferric chloride FeCl3 in the form of a 5% aqueous solution is selected. To accelerate the hydrolysis of the reagent as an alkaline additive was used calcium oxide (lime) CaO in dry form and sodium hydroxide NaOH in the form of 5% aqueous solution. To accelerate the formation of sediment (sludge) used flocculant nonionic poly

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8

Ahmed, Zaheer, Y. N. Manohara, K. P. Channabasawaraj, and Manish Majumdar. "Spectrophotometric Determination of Adefovir Dipivoxil in bulk and Pharmaceutical Formulation." E-Journal of Chemistry 5, no. 4 (2008): 713–17. http://dx.doi.org/10.1155/2008/954232.

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Two selective and sensitive spectrophotometric methods have been developed for the estimation of adefovir dipivoxil in bulk and pharmaceutical preparations. Adefovir dipivoxil was subjected to acid hydrolysis and the hydrolysed product used for the estimation. The methods are based on the reaction with 3-methyl-2-benzothiazolinone hydrazone in the presence of ferric chloride, to form a colored species with absorption maxima at 627 nm. The second method is based on the reaction of drug with 1,2 naphthaquinone -4-sulphonic acid sodium salt, under alkaline conditions which absorbs maximally at 45

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9

Gao, B., Q. Yue, and J. Miao. "Evaluation of polyaluminium ferric chloride (PAFC) as a composite coagulant for water and wastewater treatment." Water Science and Technology 47, no. 1 (2003): 127–32. http://dx.doi.org/10.2166/wst.2003.0033.

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Coal gangue is a kind of waste from coal mine processing. Polyaluminium ferric chloride (PAFC), a new type of inorganic composite coagulant, was prepared by using the waste from the Mineral Bureau of Yanzhou, China, hydrochloric acid and calcium carbonate as raw materials. The relationship between the stability of ferric ion and the ionic strength of solution was investigated. The zeta potential of PAFC hydrolysis products of PAFC and the coagulation performances under different pH value were discussed. The turbidity removal properties of PAFC, polyaluminium (PAC) and polyferric sulfate (PFS)

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10

Zeng, G. M., Y. L. Wang, M. L. Zhang, et al. "Comparison of Steam Explosion and Ferric Chloride Solution Pretreatment of Corn Stover: Composition Content, Structural and Enzymatic Hydrolysis." Asian Journal of Chemistry 25, no. 5 (2013): 2427–30. http://dx.doi.org/10.14233/ajchem.2013.13337a.

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11

Onizuka, Takahiro, Mikihisa Fukuda, and Tomohiro Iwasaki. "Effects of Coexisting Anions on the Formation of Hematite Nanoparticles in a Hydrothermal Process with Urea Hydrolysis and the Congo Red Dye Adsorption Properties." Powders 2, no. 2 (2023): 338–52. http://dx.doi.org/10.3390/powders2020020.

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Crystalline hematite nanoparticles as adsorbents for anionic Congo red dye were prepared by a hydrothermal process using urea hydrolysis. To examine the effects of coexisting anions in a solution on the formation of hematite nanoparticles, different iron(III) salts, including iron chloride hexahydrate, iron nitrate nonahydrate, iron sulfate n-hydrate, ammonium iron sulfate dodecahydrate, and basic ferric acetate, were employed as iron-ion sources. After the hydrothermal treatment of the solution, consisting of an iron salt and urea at 423 K for 20 h, a single phase of hematite was formed from

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12

Andrade, A. L., D. M. Souza, M. C. Pereira, J. D. Fabris, and R. Z. Domingues. "Synthesis and characterization of magnetic nanoparticles coated with silica through a sol-gel approach." Cerâmica 55, no. 336 (2009): 420–24. http://dx.doi.org/10.1590/s0366-69132009000400013.

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This paper investigates the influence of reaction medium pH on silica-coating of magnetite nanoparticles. Magnetite nanoparticles were prepared by means of a reduction-precipitation method using ferric chloride as a starting material, which was partially reduced to ferrous salts by Na2SO3 before alkalinizing with ammonia. The particles were coated by sol-gel method with either ammonia or HCl aqueous solutions for either base- or acid-catalyzed hydrolysis, respectively. Powder X-ray diffraction, Fourier-transform infrared, and Zeta Potential were used for the characterization of oxides and of t

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13

Sobhy M., EI-Adl, and Saleh Hanaa M. "SPECTROMETRIC INVESTIGATION OF CEFPROZIL IN BULK POWDER AND IN PHARMACEUTICAL FORMULATIONS." Scientia Pharmaceutica 70, no. 1 (2002): 67–76. http://dx.doi.org/10.3797/scipharm.aut-02-08.

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Three accurate methods were developed for the quantitative determination of cefprozil in pure form and in its dosage forms. The first method was based upon the interaction of the drug with 3-methyl-benzothiazolinone-2-hydrazone (MBTH) in the presence of ceric ammonium sulfate or ferric chloride as an oxidizing agent, where the formed color was measured at λ 521 nm or 624 nm, respectively. The second inethod was based on the chelate formation with palladium (II) chloride (PdCl2) in the presence of buffered medium, where the formed complex was determined at λ 345 nm. The third method was based u

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14

Gao, Ya, Hao Jiang, Xianyuan Li, Sultan Ahmed Khoso, Guoyuan Xiang, and Wenping Han. "Different Insights into Silicate Rectorite Modification and Its Role in Removal of Heavy Metal Ions from Wastewater." Minerals 10, no. 2 (2020): 176. http://dx.doi.org/10.3390/min10020176.

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In the field of water management, the separation of metal contaminants from wastewater is very important and challenging. This study systematically investigated the effect and underlying mechanism of silicate rectorite (REC) on the removal of heavy metal ions (Cr(VI) and Pb(II)) from wastewater. The adsorption and removal capacity of REC was further improved by its novel modification with ferric chloride hexahydrate. Compared to natural REC, the modified rectorite (Fe-REC) showed comparatively superior adsorption efficiency for both Cr(VI) and Pb(II) due to the chemisorption of Fe3+ on the REC

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15

Langenfeld, Noah James, Lauren Elizabeth Payne, and Bruce Bugbee. "Colorimetric determination of urea using diacetyl monoxime with strong acids." PLOS ONE 16, no. 11 (2021): e0259760. http://dx.doi.org/10.1371/journal.pone.0259760.

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Urea is a byproduct of the urea cycle in metabolism and is excreted through urine and sweat. Ammonia, which is toxic at low levels, is converted to the safe storage form of urea, which represents the largest efflux of nitrogen from many organisms. Urea is an important nitrogen source in agriculture, is added to many industrial products, and is a large component in wastewater. The enzyme urease hydrolyzes urea to ammonia and bicarbonate. This reaction is microbially mediated in soils, hydroponic solutions, and wastewater recycling and is catalyzed in vivo in plants using native urease, making m

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16

Ugwu, Boniface Ifeanyi, Christogonus Oduney Akalezi, Innocent Sunday Ike, Toochukwu Eqwutosi Ogbulie, and Emeka Emmanuel Oguzie. "Sulfonated carbon–based heterogeneous acid catalysts in direct biomass redox flow fuel cell: A review." Asia-Pacific Journal of Chemical Engineering, September 14, 2024. http://dx.doi.org/10.1002/apj.3158.

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AbstractThis review focused on the potential applications of sulfonated carbon–based heterogeneous acid catalysts for the hydrolysis of lignocellulosic biomass (LCB) fuel feedstock and the development of membrane electrode assembly (MEA) for the direct biomass redox flow fuel cell (DBRFFC). LCBs are hydrolysed to yield simple sugars, which are subsequently oxidized over catalysts in the anode tank of the DBRFFC to generate electricity. Ferric chloride used as a catalyst in the DBRFFC is not efficient for glucose production from LCB, such that the power performance of the DBRFFC is affected dur

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