ISJ Theoretical & Applied Science 03(95) 2021

Philadelphia, USA

Yurchenko, O. I., Chernozhuk, T. V., Baklanov, A. N., & Kravchenko, O. A.

An analysis of brines for chromium content by spectrophotometric method using co-precipitation concentration.

Full Article: PDF

Scientific Object Identifier: http://s-o-i.org/1.1/TAS-03-95-2

DOI: https://dx.doi.org/10.15863/TAS.2021.03.95.2

Language: English

Citation: Yurchenko, O. I., Chernozhuk, T. V., Baklanov, A. N., & Kravchenko, O. A. (2021). An analysis of brines for chromium content by spectrophotometric method using co-precipitation concentration. ISJ Theoretical & Applied Science, 03 (95), 23-29. Soi: http://s-o-i.org/1.1/TAS-03-95-2 Doi: https://dx.doi.org/10.15863/TAS.2021.03.95.2

Pages: 23-29

Published: 30.03.2021

Abstract: Coprecipitation of chromium on magnesium hydroxide was studied. Coprecipitation mechanism was proposed. The use of high-frequency ultrasound (US) and simultaneous action of ultrahigh-frequency and low-frequency US for intensification of chromium coprecipitation was investigated. It has been found that dispersing and mixing effects are the determining factors of the US action on co-precipitation concentration. The method of spectrophotometric determination of chromium in brines has been developed. The content of chromium in the natural brines of Ukraine was determined. It was shown that the use of double-frequent US allows us to increase the degree of chromium determination from 92-93% up to 96-98% and also to improve metrological characteristics.

Key words: Chromium, brines, ultrasound, coprecipitation, spectrophotometry, metrologic characteristics.