METHOD OF OBTAINING GALLIC ACID BISMUTH BASIC

摘要

FIELD: chemistry. ^ SUBSTANCE: solid nitrate of bismuth basic and gallic acid with molar ratio of gallic acid to bismuth equal 1.0-1.1 are successively charged into nitric acid solution mixing. Concentration of free nitric acid in solution is 0.5-1.0 mol/l. Process of obtaining gallic acid bismuth basic is carried out at temperature 15-70°C, then obtained product is washed with water and dried. ^ EFFECT: simplification of process of gallic acid bismuth basic production and increase of degree of bismuth isolation into final product up to 99,9%. ^ 1 tbl, 2 ex