Original scientific paper

Photometric Determination of Microquantities of Cyanides

I. Kraljić ; Institute of General , Inorganic, Analytical and Physical Chemistry, Faculty of Pharmacy, University, Zagreb, Croatia, Yugoslavia
M. Mate ; Institute of General , Inorganic, Analytical and Physical Chemistry, Faculty of Pharmacy, University, Zagreb, Croatia, Yugoslavia

Abstract

The catalytic action of mercuric ions upon the reaction of potassium ferrocyanide and nitrosobenzene is strongly inhibited by even small concentrations of cyanide ions. The progress of the inhibitive effect may be observed by measuring the extinction of the violet reaction product [Fe(CN)5NOPh)3. A method for the quantitative photometric determination of microquantities of cyanides has been developed. The coefficient of variation for a concentration
of 1x10-5 - 8x10-5 M /l of cyanide ion is shown to be 1.0 - 6.3%.

Keywords

Hrčak ID:

246829

URI

https://hrcak.srce.hr/246829

Publication date:

6.2.1957.

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