... Its aqueous solution shows alkalescence. Easily soluble in acid and ammonium salt solution, it shall resolve and ... grade glass articles, magnesium salt, pigment, paint and chemicals for daily use, etc. It can be used as anti-acid agent in pharmaceutical ... gastric acid, gastric ulcer or duodenal ulcer, etc. Processing Method: Brine, Soda Method, Ammonium Bicarbonate Method MgCO3, Pharmaceutical Grade