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Molecular Formula: Na3PO4 · 12H2O
Molecular Weight: 380.14
Properties: White or colorless crystals or powder, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. pH value of 1% solution is 12.1, relative density at 1.62, melting point is 73.4℃.
Uses: Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
Packing and storage: 25Kg, 50Kg bagged, stored in draughty, dry and clean place, avoid moisture.
Standard executed: HG/T2517-93
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Item |
Na3PO4
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Na3PO4 · 12H2O
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Food Grade |
Food Grade |
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Assay, %≥ |
98.0 |
98.0 |
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Phosphorus pentoxide, % ≥ |
39.5 |
18.3 |
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Na2O, % |
36-40 |
15.5-19 |
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Sulphate, %≤ |
0.25 |
0.50 |
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Heavy metal (Pb), %≤ |
0.001 |
0.001 |
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Arsenic (As), %≤ |
0.0003 |
0.0003 |
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Fluoride (as F), %≤ |
0.005 |
0.005 |
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Water insoluble, %≤ |
0.10 |
0.10 | |
