| PRODUCT IDENTIFICATION |
| CAS. |
23389-33-5 or 546-93-0 |
| Chemical Formula |
MgCO3 |
| Synonym: |
Carbonate magnesium, Hydromagnesite, Magnesium carbonate, Magnesium(II) carbonate, Magnesite.
|
| Physical and Chemical Properties |
| Physical state |
Solid. (Crystals solid.) |
| Odor |
Odorless |
| Molecular Weight |
84.3 g/mole |
| Color |
White. |
| Melting Point |
Decomposition temperature: 662°C (1223.6°F) |
| Specific Gravity |
2.958 (Water = 1) |
| Solubility |
Insoluble in cold water, hot water.Soluble in dilute acids with effervescence.Insoluble in alcohol. Imparts slight alkaline reaction to water.
|
| sales specification |
| APPEARANCE |
white crystalline granules |
| ASSAY (MgSiF6-6H2O) |
98.0% min |
| FLUORIDE (F) |
40.0% min |
| FREE ACID (H2SiF6) |
1.0% max |
| SULFATES (SO4) |
0.5% max |
| WATER INSOLUBLES |
0.5% max |
| TRANSPORTATION |
| PACKING |
25kgs in Bag |
| HAZARD CLASS |
6.1 |
| UN NO. |
2853 |
