Molecular formula: Na3PO4
Molecular weight: 163.97
Properties: White powder, easily soluble in water, relative density 2.537, m.p.: 1340 ℃ , easily absorb moisture in the air.
Uses: Mainly used in soften water treatment, daily-use chemicals, color fixing, enamel, leather degreasing; also as catalyst, stabilizer and antiknock agent, and so on.
Packing and storage: 25kg, 50Lb bags, stored in draughty, dry and clean place, avoid moisture.
Standard executed: Reference standard
Item |
Food Grade |
Assay (Na3PO4), %≥ |
98.0 |
Phosphorus pentoxide, % ≥ |
41.5 |
pH (1% solution), |
11.5-12.5 |
Water insoluble, %≤ |
0.10 |
Fineness(60 meshes), %≥ |
90.0 |
Heavy metal (Pb), %≤ |
0.001 |
Arsenic( As), %≤ |
0.0003 |
Fluoride (as F), %≤ |
0.005 |
Loss on Drying, %≤ |
2.0 |
|