Molecular Formula: NaH2PO4
Molecular Weight: 120.005
Properties: White crystals powder, m.p. 190 ℃ , easily soluble in water and the solution is acidity, insoluble in ethanol; easily deliquescence in the air.
Uses: As auxiliary agent of reactive dyes; also used in the preparation of composite phosphates.
Packing and storage: 25Kg, 50Lb bags, stored in draughty, dry and clean place, avoid moisture.
Standard executed: Reference standard
Item |
Specs. |
Assay (NaH2PO4 dry basis), % |
98 -103 |
P2O5, % ≥ |
58.5 |
Na2O, %≥ |
25.6 |
pH, |
4.2-4.8 |
Loss on drying, % ≤ |
2.0 |
Arsenic (As), % ≤ |
0.0003 |
Heavy metal (as Pb), % ≤ |
0.001 |
Fluoride (F), % ≤ |
0.003 |
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