Product name |
Magnesium sulfate, heptahydrate |
Specification |
Pharmaceutical grade (USP,BP,EP,CP) |
Molecular formula |
MgSO4 ·7H2O |
CAS |
10034-99-8 |
H.S. CODE |
2833210000 |
Molecular weight |
246.47 |
Appearance |
Colorless crystal |
Package |
25KG Woven bags or fiber drums |
Property:
Colorless columnar or granular particles. A bitter salty. The relative density 1.67. In dry air weathering. Melting point 1124 ℃ (no water content), soluble in water, soluble in ethanol, glycerin, insoluble in acetone.
Application:
Used as an analytical reagent, such as for sulfate precipitation agent. Also used in medicine, printing and dyeing, papermaking, ceramics and leather industry.
Test standard:
Test items |
Specification |
||
BP2015 |
USP35 |
CP2015 |
|
Appearance |
Colorless crystal |
Colorless crystal |
Colorless crystal |
Assay |
99.0%~100.5% |
99.0~100.5% |
≥99.5% |
Appearance of solution |
Conform |
Conform |
Conform |
pH |
5.5~9.2 |
5.5~9.2 |
5.5~9.2 |
Acidity or alkalinity |
Conform |
Conform |
Conform |
Chloride |
≤0.03% |
≤0.014% |
≤0.01% |
Arsenic |
≤0.0002% |
≤0.0002% |
≤0.0002% |
Iron |
≤0.002% |
≤0.002% |
≤0.0015% |
Calcium |
|
|
≤0.02% |
Heavy metals |
≤0.001% |
≤0.001% |
≤0.001% |
Zinc |
|
|
Conform |
Loss on dry |
48.0%~52.0% |
≤2% |
≤0.0001% |
Loss on ignition |
|
40.0~52.0% |
48.0~52.0% |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.