Original
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Molecular weight：380.12
CAS NO: 10101-89-0
【Appearance】Colorless or white crystal. Specific gravity is 1.62(20℃). It is soluble in water, insoluble in alcohol and carbon disulfide. Its water solution is strong alkali.
【Usage】It can be used as analytical reagent, used in chemical, textile, printing, papermaking; It can also be used as water softener, detergent, metal rust remover, juice purifying agent, etc.
【Standard】The highest impurity content is counted by %
|
Specification Index name |
Analytically pure-AR |
Chemical pure-CP |
High purity |
Water treatment special |
|
Content(Na3PO4·12H2O)/% |
≥98.0 |
≥97.0 |
≥98.0 |
≥98.0 |
|
Clarity test |
Qualified |
Qualified |
－ |
－ |
|
Free alkali |
≤1.5 |
≤3.0 |
－ |
－ |
|
Disodium salt |
≤0.5 |
≤1.0 |
－ |
－ |
|
Chloride(Cl) |
≤0.005 |
≤0.005 |
－ |
≤0.3 |
|
Sulfate(SO4) |
≤0.01 |
≤0.03 |
≤0.5 |
≤0.5 |
|
Nitrogen compound(N) |
≤0.002 |
≤0.005 |
－ |
－ |
|
Ferrum(Fe) |
≤0.0005 |
≤0.002 |
－ |
－ |
|
Arsenic(As) |
≤0.0003 |
≤0.001 |
≤0.0005 |
≤0.005 |
|
Heavy metal( counted by Pb) |
≤0.001 |
≤0.002 |
≤0.002 |
－ |
|
Phosphorus pentoxide(P2O5) |
－ |
－ |
≤18.3 |
－ |
|
Methyl orange alkalinity |
－ |
－ |
15.5~19 |
16~19 |
|
Water insoluble |
－ |
－ |
－ |
≤0.1 |
【Packing】Woven bag lining with plastic bag, kraft bag or fiber can. Net weight is 25kg.
