1,Chemical Name: Magnesium carbonate
2,Molecular Formula: xMgCO3•yMg(OH) 2•nH2O
3,Molecular Weight: ---
5,Character: In normal temperature, it's with three hydrates. Light one is white, easily fragile or loose white powder. Odorless. Relative density is 2.2. Melting point is 350℃. It's stable in the air. When heated to 700℃, it will become magnesium oxide. It's hardly soluble in water, but it'll bring a slight alkaline reaction. It can not be soluble in ethanol but it could be soluble in olefine acid with sparkling.
6,Usage: It's used as drier, color ficatives, anticaking agent, carrier, swelling agent, acidity regulator.