METHOD FOR MAKING BASIC BISMUTH SALICYLATE

摘要

FIELD: medicine. ^ SUBSTANCE: invention can be used in medicine and pharmaceutics. Basic bismuth nitrate BiONO3H2O is dissolved in an aqueous solution of salicylic acid at mole ratio of salicylic acid to bismuth 1-1.2 and pH of the solution 0.9-3.0. The solution is heated up to temperature 50-85C and stirred during 15-240 minutes. Past precipitation of basic bismuth slicylate is recovered from the solution by elution, washed with water at temperature 60C and dried at temperature 90C. ^ EFFECT: invention allows simplifying and accelerating production process, reducing expenses and improving bismuth recovery rate in the end product to 99,99%. ^ 1 tbl