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Sodium Phosphate Tripoly STPP Pentasodium Tripolyphosphate
Chemical Name: Sodium Tripolyphosphate
Synonyms: Pentasodium Tripolyphosphate; Sodium Phosphate Tripoly; STPP;
CAS No.: 7758-29-4
Molecular Formula: Na5P3O10
Application:
Mainly used in synthetic detergent additives can also be used in petroleum, metallurgy, mining, water treatment and other industries. In food industry, it is used as water conservative, applied to can, fruit drinks, milk products, vegetable protein drinks, instant noodles, meat products, and so on.
Specifications:
Items |
Excellent class |
First Class |
Second Class |
Appearance |
White Powder |
||
STPP % |
≥96 |
≥90 |
≥85 |
P2O5 % |
≥57.0 |
≥56.5 |
≥55.0 |
Water insolubilities % |
≤0.10 |
≤0.10 |
≤0.15 |
Iron (Fe) |
≤0.007 |
≤0.015 |
≤0.030 |
Whiteness % |
≥85 |
≥75 |
≥65 |
PH (1%) |
9.2-10.0 |
||
1.00mm mesh residues % |
≤5.0 |
Packing& Storage:
In plastic bags, net weight: 50kg, 25kg.
Stored in a dry, ventilative and clean warehouse; kept away from moisture and heat, and stored separately from poisonous substances.
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