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Sodium tripolyphosphate
Molecular formula: Na5P3O10
Molecular weight: 367.88
Technical specification:
|
No. |
Index name |
Industrial grade |
Food grade |
|
1 |
Sodium tripolyphosphate %≥ |
90 |
90 |
|
2 |
Phosphorus pentoxide %≥ |
57 |
57 |
|
3 |
Iron %≤ |
0.015 |
0.01 |
|
4 |
Water insoluble %≤ |
0.1 |
0.1 |
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5 |
Chlorine %≤ |
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0.5 |
|
6 |
Lead %≤ |
|
0.001 |
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7 |
Arsenic %≤ |
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0.0003 |
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8 |
PH value(1% aqueous solution) |
9.2-10.0 |
9.5-9.9 |
Packing: 25kg or 50kg plastic woven bag
Use
STPP is used in water softening, industrial cleaners, food uses, detergent, emulsifier of oil and grease, peptizing agent, deflocculating agent in oil well, sequester in cotton boiling.
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