|
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.
