... , 4:1:5, 4:1:6, 4:1:7, 3:1:3 and 3:1:4. And nontoxic ... 0.02% (15). Easily soluble in acid and ammonium salt solution, it shall resolve and send out carbon dioxide ... be used to manufacture high-grade glass articles, magnesium salt, pigment, paint and chemicals for daily use, etc. ... by Carbonization, Brine, Limestone Carbonization, Soda Method, Ammonium Bicarbonate Method Reagent Grade Magnesium Carbonate