Molecular weight:142.04
CAS NO:15124-09-1
【Appearance】White crystalline powder. Hygroscopicity. Relative density is 2.68. Melting point is 884℃. It is soluble in water and glycerol, insoluble in alcohol.
【Usage】It can be used as analytical reagent, such as dehydrating agent, interference inhibitor. It can also be used in pharmaceutical industry, food industry used as auxiliary material.
【Standard】Highest impurity content is counted by %
Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
High purity |
Content(Na2SO4)/% |
≥99.0 |
≥98.0 |
≥99.0 |
PH value(50g/L solvent,25℃) |
5.0~8.0 |
5.0~8.0 |
5.0~8.0 |
Clarity test |
Qualified |
Qualified |
Qualified |
Water insoluble |
≤0.005 |
≤0.02 |
≤0.02 |
Loss on ignition |
≤0.2 |
≤0.5 |
≤0.5 |
Chloride(Cl) |
≤0.001 |
≤0.005 |
≤0.005 |
Phosphate(PO4) |
≤0.001 |
≤0.002 |
— |
Total nitrogen(N) |
≤0.0005 |
≤0.001 |
≤0.002 |
Potassium(K) |
≤0.01 |
- |
— |
Calcium(Ca) |
≤0.002 |
≤0.005 |
— |
Ferrum(Fe) |
≤0.0005 |
≤0.001 |
≤0.001 |
Heavy metal( counted by Pb) |
≤0.0005 |
≤0.002 |
≤0.001 |
【Packing】Woven bag lining with plastic, kraft bag or fiber can.Net weight is 25kg.