Magnesium Carbonate
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.
Molecular Formula : xMgCO3·yMg(OH)2·zH2O 4MgCO3·Mg(OH)2·4H2O
CAS NO: 39409-82-0
Appearance : This product is a white granular powder, odourless, almost tasteless.
Specification :
| Item |
Standard |
| High-Class |
First-Class |
| MgO W/% |
40.0~43.5 |
| CaO W%/ ≤ |
0.20 |
0.70 |
| HCl insoluble substances W% /≤ |
0.10 |
0.15 |
| Water Content W/%≤ |
2.0 |
3.0 |
| L.O.I W/% |
54-58 |
| Chloride W/%≤ |
0.10 |
| Fe W/% ≤ |
0.01 |
0.02 |
| Mn W/% ≤ |
0.004 |
0.004 |
| Sulphate W/%≤ |
0.10 |
0.15 |
| Particle size |
0.15mmW/%≤ |
0.025 |
0.03 |
| 0.075mmW/%≤ |
1.0 |
— |
| Bulk Density(g/ml)≤ |
0.12 |
0.140 |
Application :
1, Serves as the medicine intermediate, the absorbent, the drying agent, the color fixative, the carrier, the anti knot quick medicinal preparation;
2, Makes the chemical additive, the magnesium element compensation medicinal preparation in food;
Uses in the fine chemical industry producing the chemical reagent;
3, Makes the strengthening agent, the auxiliaries in the rubber;
4, May make the heat insulation, the thermostable fire
protection thermal insulation material;
In electric wire electric cable process of manufacture important chemistry raw material.
5, Makes the high-quality glass products;
6, The enamel ceramics play the superficial luminous role;
7, Manufacture magnesium salt, pigment, paint, everyday use cosmetics, shipbuilding, boiler manufacture.
8, And the athlete competes scratches the hand to use.
Packing: Packed in 25kg plastic woven bag, 25kg kraft-paper bag, or as per the buyer's requirement.
Storage: store in dry, airproof and low temperature condition, and avoid light.
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