The determination of cyanogen chloride

Abstract

A simplification (ommission of the initial bromination step) of Bark and Higson's method for the determination of cyanide permits the direct determination of cyanogen chloride. A study of the experimental parameters has been made, and interferences from sulphur dioxide, chlorine and hypochlorite have been successfully eliminated. The conditional molar absorptivity has been found to be 3·41 × 10³ 1 mol^–1 mm^–1. The method is well suited to the analysis of solutions of cyanogen chloride in the concentration range from 10^–6 to 5 × 10^–5M.