... mgco3 powder, being used as raw material to manufacture electronic components... Physicochemical Properties: White amorphous powder, nontoxic, odorless, ... aqueous solution shows alkalescence. Easily soluble in acid and ammonium salt solution, it shall resolve and release carbon dioxide ... duodenal ulcer, etc. Processing Method: Brine, Soda Method, Ammonium Bicarbonate Method. MgCO3, Electronic Grade