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Molecular weight：156.01
CAS NO: 13472-35-0
【Appearance】Sodium dihydrogen phosphate is colorless rhombic crystal. Relative density is 2.040. Melting point is 60℃. It is soluble in water. Water solution is acidity. It is insoluble in alcohol.
【Usage】It is used as analytical reagent, buffer agent. It can be used in food industry, fermentation industry, food industry, etc.
【Standard】The highest impurity content is counted by %
|
Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
High purity |
|
Content(NaH2PO4·2H2O)/% |
≥99.0 |
≥98.0 |
≥98.0 |
|
PH value(50g/L,25℃) |
4.2~4.6 |
4.2~4.6 |
4.2~4.6 |
|
Clarity test |
Qualified |
Qualified |
－ |
|
Water insoluble |
≤0.01 |
≤0.02 |
≤0.05 |
|
Chloride(Cl) |
≤0.005 |
≤0.01 |
≤0.014 |
|
Sulfate(SO4) |
≤0.005 |
≤0.01 |
≤0.25 |
|
Nitrate(NO3) |
≤0.001 |
≤0.002 |
－ |
|
Ammonium(NH4) |
≤0.002 |
－ |
－ |
|
Potassium(K) |
≤0.02 |
≤0.1 |
－ |
|
Ferrum(Fe) |
≤0.001 |
≤0.005 |
－ |
|
Arsenic(As) |
≤0.0002 |
≤0.0005 |
≤0.005 |
|
Heavy metal( counted by Pb) |
≤0.001 |
≤0.005 |
≤0.002 |
|
Ammonia sediment/% |
≤0.01 |
≤0.02 |
－ |
|
Fluoride(F) /% |
－ |
－ |
≤0.005 |
【Packing】Woven bag lining with plastic bag, kraft bag or fiber can. Net weight is 25kg.
