... 2.00Hydrochloric acid insoluble matter% ≤ 0.10Calcium oxide (CaO)% ≤ 0.43Magnesium oxide(MgO)% ≥ 41.00Loss on ignition% 54—58Chloride ... time, generate water, carbon dioxide and magnesium oxide.PackingPlastic woven bag or kraft paper bag inner ... supplies. Food-grade light magnesium carbonate can produce flour additives, dryer, color fixative, carrier, anti-caking agent. (Food grade) Magnesium Carbonate ...