FIELD: chemistry.
SUBSTANCE: invention relates to use of 2,4-dinitrophenol as a colour reagent for determining concentration of sulphide ions in an alkaline medium.
EFFECT: when using 2,4-dinitrophenol to determine concentration of sulphide ions, analysis is carried out rapidly and without release of toxic hydrogen sulphide.
1 dwg, 9 ex
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Authors
Dates
2013-08-10—Published
2012-06-05—Filed