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 |
White powder |
White powder |
White powder |
|
Assay |
62.0~70.0% |
62.0~70.0% |
62.0~70.0% |
|
Acidity |
Conform |
Conform |
Conform |
|
Insoluble matters |
Conform |
Conform |
Conform |
|
Chloride |
≤0.04% |
≤0.04% |
≤0.04% |
|
Iron |
≤0.003% |
≤0.003% |
≤0.003% |
|
Heavy metals |
≤0.0015% |
≤0.0015% |
≤0.0015% |
|
Arsenic |
≤0.0003% |
≤0.0003% |
≤0.0003% |
Storage：
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.
