product name:Heavy magnesium carbonate

Expiry date:3 years

Items

Specification

Results

Characters

White powder.

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

Conforms

Identification

It gives the reaction of carbonate

Conforms

Soluble substances

Max. 1.0%

0.6%

Acid-insoluble substances

Max. 0.05%

0.04%

Arsenic

Max. 4ppm

Conforms

Calcium

Max. 0.45%

Conforms

Iron

Max. 200ppm

Conforms

Heavy metals

Max. 30ppm

Conforms

Assay(MgO)

40.0%~43.5%

40.9%

Conclusion

Conforms to USP36