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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
Alternate Identifier(s):
OSTI ID: 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. Wed . "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 = {Wed May 01 00:00:00 EDT 1985},
month = {Wed May 01 00:00:00 EDT 1985}
}