Separate determination of nitrophenols and aminophenols in aqueous solutions
Journal Article
·
· J. Anal. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6992935
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%.
- Research Organization:
- Voronezh Technological Institute
- OSTI ID:
- 6992935
- Journal Information:
- J. Anal. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States) Vol. 39:11,PT.2; ISSN JACUA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTRA
AQUEOUS SOLUTIONS
AROMATICS
BUTYL ETHER
CHEMICAL ANALYSIS
DIAGRAMS
DISPERSIONS
ETHERS
EXTRACTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ISOMERS
LIQUID WASTES
MIXTURES
NITRO COMPOUNDS
NITROPHENOL
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PHOTOMETRY
POLLUTANTS
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
WASTE WATER
WASTES
WATER
400105 -- Separation Procedures
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTRA
AQUEOUS SOLUTIONS
AROMATICS
BUTYL ETHER
CHEMICAL ANALYSIS
DIAGRAMS
DISPERSIONS
ETHERS
EXTRACTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ISOMERS
LIQUID WASTES
MIXTURES
NITRO COMPOUNDS
NITROPHENOL
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PHOTOMETRY
POLLUTANTS
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
WASTE WATER
WASTES
WATER