Positive tests were obtained for 1 mg. of chloride in the presence of 100 mg. of interfering anions.Losses in chloride occur when bromide and iodide are removed by merely boiling with nitric acid (see Table I). Hence, it was found necessary to remove bromides and iodides by steamdistillation. SummaryA new procedure for the systematic detection of thiocyanate, iodide, bromide, and chloride has been developed which does not involve the use of silver ion as a group reagent. This method is capable of detecting 1 mg. each of thiocyanate, iodide, and chloride, and 2 mg. of bromide in 3 ml. of solution.

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