Specification :

Product name: Magnesium carbonate
Basic characters: Molecular formula: MgCO3
It is a white solid that occurs in nature as a mineral. Several hydrated and basic forms of magnesium carbonate also exist as minerals. In addition, MgCO3 has a variety of uses.

Standard: HHXPQB-HXYHX( LT) -2005

Items
A
B
C

CA OXIDE( CaO) % d
0.43
0.7
1.0

Water % d
2
3
4

Mg oxide ( MgO) % d
41
40
38

Ignition Loss % d
54-58
54-58
52

Hydrochloric acid insoluble % d
0.1
0.15
0.2

chloride ( CL) % d
0.1
0.15
0.3

Mesh residue ( 150um hole) % d
0.025
0.03
0.04

Soulphate ( So4 ) % d
0.1
0.15
0.3

stacking density ( g / ml )
0.12
0.14
0.16

Useage:

Magnesite and dolomite minerals are used to produce magnesium metal and basic refractory bricks. MgCO3 is also used in flooring, fireproofing, fire extinguishing compositions, cosmetics, dusting powder, and toothpaste. Other applications are as filler material, smoke suppressant in plastics, a reinforcing agent in neoprene rubber, a drying agent, a laxative to loosen the bowels, and color retention in foods. In addition, high purity magnesium carbonate is used as antacid and as an additive in table salt to keep it free flowing.