Abstract
Abstract 1) A new method for the determination of sulfur in organic compounds has been established. 2) This method is based on the utilization of the reducing power of tin(II)-strong phosphoric acid and the oxidizing power of chromium(VI)-strong phosphoric acid. 3) Sulfur in organic compounds is reduced to hydrogen sulfide by heating with tin(II)-strong phosphoric acid directly (Procedure A) or after oxidizing with chromium(VI)-strong phosphoric acid (Procedure B). 4) The liberated hydrogen sulfide is absorbed in zinc acetate solution and estimated by the iodimetry. 5) The analytical results obtained for methylorange, sulfur guanidine, and cystine by the Procedure A and for thiourea, methi-onine, acetylmethionine, and thionalide by the Procedure B were given.
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