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Title: Separate determination of nitrophenols and aminophenols in aqueous solutions

Abstract

Nitro and aminophenols are widely distributed, highly toxic components of waste waters from the phenolic industry. This article proposes a rapid extraction photometric method for determination of the most widespread isomers of nitro and aminophenols (ortho-substituted). Preliminary separation of the components being determined is based on the substantial difference in the ability of 2-nitrophenol and 2-aminophenol to be extracted from aqueous solutions by organic solvents. It is shown that the distribution coefficient for 2-nitrophenol in the system dibutyl ether-water is almost 40 times larger than the corresponding value for 2-aminophenol. The method described made possible the determination of 2-nitrophenol and 2-aminophenol in aqueous solution after their separation with satisfactory accuracy. The maximum error for the determination of 2-aminophenol was 12% and for 2-nitrophenol, 4%.

Authors:
; ; ;
Publication Date:
Research Org.:
Voronezh Technological Institute
OSTI Identifier:
6992935
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States); Journal Volume: 39:11,PT.2
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; PHENOLS; SOLVENT EXTRACTION; WASTE WATER; QUANTITATIVE CHEMICAL ANALYSIS; ABSORPTION SPECTRA; AQUEOUS SOLUTIONS; BUTYL ETHER; DIAGRAMS; ISOMERS; NITROPHENOL; ORGANIC COMPOUNDS; PHOTOMETRY; POLLUTANTS; QUANTITY RATIO; AROMATICS; CHEMICAL ANALYSIS; DISPERSIONS; ETHERS; EXTRACTION; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; LIQUID WASTES; MIXTURES; NITRO COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SOLUTIONS; SPECTRA; WASTES; WATER 520200* -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (-1989); 400105 -- Separation Procedures

Citation Formats

Korenman, Y.I., Bortnikova, R.N., Nefedova, T.A., and Sotnikova, N.G.. Separate determination of nitrophenols and aminophenols in aqueous solutions. United States: N. p., 1985. Web.
Korenman, Y.I., Bortnikova, R.N., Nefedova, T.A., & Sotnikova, N.G.. Separate determination of nitrophenols and aminophenols in aqueous solutions. United States.
Korenman, Y.I., Bortnikova, R.N., Nefedova, T.A., and Sotnikova, N.G.. 1985. "Separate determination of nitrophenols and aminophenols in aqueous solutions". United States. doi:.
@article{osti_6992935,
title = {Separate determination of nitrophenols and aminophenols in aqueous solutions},
author = {Korenman, Y.I. and Bortnikova, R.N. and Nefedova, T.A. and Sotnikova, N.G.},
abstractNote = {Nitro and aminophenols are widely distributed, highly toxic components of waste waters from the phenolic industry. This article proposes a rapid extraction photometric method for determination of the most widespread isomers of nitro and aminophenols (ortho-substituted). Preliminary separation of the components being determined is based on the substantial difference in the ability of 2-nitrophenol and 2-aminophenol to be extracted from aqueous solutions by organic solvents. It is shown that the distribution coefficient for 2-nitrophenol in the system dibutyl ether-water is almost 40 times larger than the corresponding value for 2-aminophenol. The method described made possible the determination of 2-nitrophenol and 2-aminophenol in aqueous solution after their separation with satisfactory accuracy. The maximum error for the determination of 2-aminophenol was 12% and for 2-nitrophenol, 4%.},
doi = {},
journal = {J. Anal. Chem. USSR (Engl. Transl.); (United States)},
number = ,
volume = 39:11,PT.2,
place = {United States},
year = 1985,
month = 5
}