Molecular weight:136.09
CAS NO: 7778-77-0
【Appearance】It is colorless crystal or white crystalline powder. Relative density is 2.338. Melting point is 252.6℃. It is soluble in water. Water solution is acidity.
【Usage】It can be used as analytical reagent in Yeast culture agent, pharmaceutical, dairy product processing, etc.
【Standard】The highest impurity content is counted by %
Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
High purity |
Content(KH2PO4) /% |
≥99.5 |
≥99.0 |
≥98.0 |
PH value(50g/L solvent,25℃) |
4.2~4.5 |
4.2~4.5 |
4.2-4.6 |
Clarity test |
Qualified |
Qualified |
- |
Water insoluble |
≤0.002 |
≤0.005 |
≤0.2 |
Loss on drying |
≤0.2 |
≤0.3 |
— |
Chloride(Cl) |
≤0.001 |
≤0.005 |
≤0.3 |
Sulfate(SO4) |
≤0.003 |
≤0.005 |
≤0.5 |
Total nitrogen(N) |
≤0.001 |
≤0.002 |
- |
Arsenic(As) |
≤0.000 5 |
≤0.002 |
≤0.000 3 |
Sodium(Na) |
≤0.02 |
≤0.05 |
- |
Ferrum(Fe) |
≤0.001 |
≤0.005 |
- |
Heavy metal( counted by Pb) |
≤0.001 |
≤0.005 |
≤0.002 |
Fluoride(F) |
- |
- |
≤0.001 |
【Packing】Woven bag lining with plastic bag, kraft bag or fiber can. Net weight is 25kg.