The Assay of Mercuric Salicylate

Abstract

Summary The B.P.C. assay of mercuric salicylate has been shown to give low results, compared with the U.S.P. XI method and a gravimetric sulphide method. A study of the conditions of the B.P.C. method has been made and sources of error revealed. A modification of the B.P.C. method has been proposed which gives results in agreement with the sulphide and U.S.P. XI methods. I am indebted to Mr. C. Morton, B. Sc., Ph.C., Head of the Chelsea School of Pharmacy, for his helpful criticisms.