Product name |
Magnesium sulfate, heptahydrate |
Specification |
Reagent grade |
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:GB/T 671-1998
Test items |
Specification |
|
AR grade |
CP grade |
|
Appearance |
Colorless crystal |
Colorless crystal |
Assay |
≥99.0% |
≥99.0% |
pH |
5.0~8.0 |
5.0~8.0 |
Appearance of solution |
Conform |
Conform |
Water insoluble |
≤0.005% |
≤0.01% |
Chloride |
≤0.0005% |
≤0.001% |
Arsenic |
≤0.0001% |
≤0.0002% |
Sodium |
≤0.005% |
≤0.05% |
Calcium |
≤0.02% |
≤0.05% |
Manganese |
≤0.001% |
≤0.005% |
Iron |
≤0.0005% |
≤0.001% |
Heavy metal |
≤0.0005% |
≤0.001% |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.