Heavy Magnesium Carbonate

high industrial grade (Heavy magnesium carbonate)

Molecular weight:383.32

Storing: seal, sets in a cool and dry place preservation.

Packing: Inside linings are two polyethylene plastic bags, The outside wrapping is the paper barrel

Term of validity:Three years



Expiry Date: 03/2013
Analysis Date: 26/03/2010


Items Specification

Characters:
White powder.

Practically insoluble in water. It dissolves in dilute acids with strong effervescence

Identification:
It gives the reaction of carbonate

Appearance of solution:
Not more intensely colored than reference solution B4.

Soluble substances:
Max. 1.0%

Acid-insoluble substances:
Max. 0.05%

Chlorides:
Max. 0.07%

Sulphates:
Max. 0.6%

Arsenic:
Max. 2ppm

Calcium:
Max. 0.75%

Iron:
Max. 400ppm

Heavy metals:
Max. 20ppm

Lead:
Max. 3ppm

Bulk density:
Min.0.5g/ml

Assay ((MgO):
40.0% - 45.0%

Conclusion:
Conforms to EP 6 test