Academic literature on the topic 'Gravimetric Reagents'

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Journal articles on the topic "Gravimetric Reagents"

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Acanski, Marijana. "Comparation of fundamental analytical methods for quantitative determination of copper(II)ion." Chemical Industry 62, no. 2 (2008): 85–89. http://dx.doi.org/10.2298/hemind0802085a.

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Copper is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, heat conductor, as a building material, and as a component of various alloys. In this work accuracy of methods for quantitative determination (gravimetric and titrimetric methods of analysis) of copper(II) ion was studied. Gravimetric methods do not require a calibration or standardization step (as all other analytical procedures except coulometry do) because the results are calculated directly from the experimental data and molar masses. Thus, when only one or two samples are
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Gurbanov, Huseyn R., and Aysel V. Gasimzade. "Study on efficiency of new multifunctional compositions for preparation of oil for transportation." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 4 (July 2023): 41–50. http://dx.doi.org/10.32434/0321-4095-2023-149-4-41-50.

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We studied the effect of individual reagents and new compositions on demulsification of stable water-oil emulsions produced from the wells of Muradkhanli and Balakhani fields, SOCAR. The corrosion protection effect of three new compositions designated as A, B and C in water-oil emulsion, as well as the effect of surface tension on freezing temperature are discussed in the article. Composition A contained the reagents ND-12 and Alkan, composition B contained reagents ND-12 and Gossypol resin, and composition C contained the reagents BAF, ND-12, Gossypol resin and Dissolvan-4411. Physical and ch
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Fedorova, А. Yu, and Е. N. Bushuev. "The evaluation of corrosion rate of steel during chemical cleaning of steam boilers." Vestnik IGEU, no. 6 (2019): 21–29. http://dx.doi.org/10.17588/2072-2672.2019.6.021-029.

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Traditional and new washing acid reagents are used for chemical cleaning of internal surfaces of steam-water pipes of boilers. In previous studies, the rate of removal of lumpy and uniform deposits in the evaporative pipes of high-pressure steam boilers depending on the type of cleaning solution and the duration of cleaning was obtained. However, during chemical cleaning, removing deposits is accompanied by corrosion processes of the metal pipes, which leads to their loss. In the scientific and technical literature there are practically no data characterizing this process when using new deterg
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Astafyev, Alexandr, Evgeniy Nikolaev, Elena Lysenko, and Anatoly P. Surzhikov. "X-Ray and Thermogravimetric Analyzes of Mechanically Activated Nickel Ferrites." Materials Science Forum 970 (September 2019): 17–23. http://dx.doi.org/10.4028/www.scientific.net/msf.970.17.

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This article shows a study of the effect of mechanical activation of the initial mixture of reagents NiO and Fe2O3 at different speeds of grinding bowl rotation on synthesis of nickel ferrite. Nickel ferrite was produced by the solid-phase synthesis at a temperature of 900 °C for 240 minutes. The obtained ferrite samples were investigated by thermal gravimetric and X-ray phase analysis. The Curie temperature values are obtained, as well as the magnitude of the change of detected instrument weight at the magnetic phase transition (ferromagnetic-paramagnetic) of nickel ferrite using thermal grav
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V., V. BALAKRISHNA, and APPALA RAJU N. "Gravimetric Determination of Palladium(Il), Copper(II) and Nickel(Il), and Palladium(Il), Copper(Il) and Manganese(II) from Ternary Mixtures, using 2-Hydroxy- I -acetonaphthoneoxime and I-Hydroxy-2-acetonaphthoneoxime." Journal of Indian Chemical Society Vol. 63, May 1986 (1986): 512–14. https://doi.org/10.5281/zenodo.6296740.

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Depaitment of Chemistry, Sri Venkateswara University Post-Graduate Centre, Kurnool-518 001 Department of Chemistry, Sri Venkateswara University, Tirupati-517 502 <em>Manuscript received 30 July 1985, revised 24 February 1986, accepted 23 April 1986</em> 2-Hydroxy-1-acetonaphthoneoxime and its isomer 1-hydroxy-2-acetonaphthone&shy;oxime have been used as reagents for the gravimetric determination of palladium(II), copper(II) and nickel(II) as well as palladium(II), copper(II) and manganese(II) from ternary mixtures. The results obtained are fairly accurate.
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Tereshchenko, Anatoly G. "Application of Hygroscopic Gravimetric Analysis Method in Isopiestic Measurements. Quality Control of Initial Reagents." Journal of Solution Chemistry 48, no. 3 (2018): 283–95. http://dx.doi.org/10.1007/s10953-018-0759-3.

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T., SAROJINI, and RAMACHANDRAIAH A. "Polydentate Carboxyamide Ligands as Analytical Reagents." Journal of Indian Chemical Society Vol. 70, Feb 1993 (1993): 138–41. https://doi.org/10.5281/zenodo.5910766.

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Department of Chemistry, Regional Engineering College, Warangal-506 004 <em>Manuscript received 26 May 1992, revised 11 November 1992, accepted 24 November 1992</em> Biphenyl bridged, binucleating and polydentate macromolecular ligand series, H<sub>2</sub>L, possessing two terminal -NH-CO-A-&nbsp;COOH, carboxyamide moieties (where A=-CH<sub>2</sub>-CH<sub>2</sub>-or -CH = CH- or <em>ortho</em>-phenylene linkage), has been synthesised and was found to be a set of potential analytical reagents as H<sub>2</sub>L suspensions for conductometric and pH-metric aqueous acid-base titrations on one band
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Bogacheva, Natalya V., Ksenia A. Tarbeeva, and Natalya Yu Ogorodova. "DEVELOPMENT OF STEP-BY-STEP METHOD FOR PRODUCING SILVER NANOPARTICLES BY CITRATE METHOD." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 5 (2020): 65–69. http://dx.doi.org/10.6060/ivkkt.20206305.6171.

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The article presents an algorithm for developing a step-by-step method for producing silver nanoparticles 30-35 nm in size, taking into account the establishment at each stage of the necessary ratio of concentrations and volumes of reagents. In the work, silver nitrate and sodium citrate anhydrous were used by «Sigma-Aldrich» (USA). All test solutions were prepared by the gravimetric method. To weigh the reagents, we used Adventurer electronic analytical balances («OHAUS», USA) (with a resolution of 0.0001 g). The size and density of silver nanoparticles were estimated using a JEM-1011 electro
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Yang, Han, Shuaiwei Dong, Zhiyong Sun, et al. "Catalpa ovata G. Don. potential medicinal value of leaves." Thermal Science 24, no. 3 Part A (2020): 1713–20. http://dx.doi.org/10.2298/tsci190609043y.

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Catalpa ovata G. Don. has a certain degree of appreciation because of its unique tree shape and wide crown. It also has certain adaptability. This experiment uses organic materials such as Fourier transform infrared (FT-IR) spectroscopy, gas chromatography-mass spectrometer (GC-MS), learning content management system, thermal desorption - GC-MS, termal gravimetric analyzer and other modern techniques to extract organic reagents from Catalpa ovata G. Don?s Leaves. The original powder was tested differently and analyzed, investigated. To explored and developed its potential medicinal value, and
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Magadova, L. A., K. A. Poteshkina, V. D. Vlasova, M. S. Pilipenko, and V. Y. Fineshina. "Investigation of Carbon Dioxide Corrosion Inhibitors for Steel for Use in Oil and Gas Production." Oil and Gas Technologies 129, no. 4 (2020): 14–18. http://dx.doi.org/10.32935/1815-2600-2020-129-4-14-18.

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The effect of carbon dioxide corrosion on the pipeline transport system and its protection methods are considered in this article. The corrosion inhibitors represented by imidazoline-based compositions and industrial samples of corrosion inhibitors are used as protective reagents, and the model of produced water saturated with carbon dioxide is used as an aggressive environment. The protective properties of inhibitors and the corrosion rate were evaluated by gravimetric analysis. The paper presents the results of the study of industrial samples and inhibitory compositions developed on the basi
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Conference papers on the topic "Gravimetric Reagents"

1

Matveev, Igor, and Serhiy Serbin. "Investigations of a Reverse-Vortex Plasma Assisted Combustion System." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58037.

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Theoretical and experimental investigations of the working processes in the reverse-vortex plasma assisted combustion system have been conducted. The system operates as a multi-mode, multi-purpose reactor in a wide range of plasma feedstock gases and turn down ratios, convenient and simultaneous feeding of several reagents into the discharge zone. The selected concept of the portable plasma assisted system can provide higher performance, wider turn down ratios, more efficient propellants utilization, demonstrate potential fuel flexibility, and satisfy major gravimetric and volumetric density r
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