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| Sodium phosphates |
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| Sodium tripolyphosphate |
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Chemical Name: | Sodium Tripolyphosphate | Molecular Formula: | Na5P3O10 | Molecular Weight: | 367.86 | CAS: | 7758-29-4 | Character: | White powder, surface density: 0.35-0.9g/cm3, melting point:622℃, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent. | Uses: | Tanning agent for leather making, auxiliary for dyeing. As an oil contamination resistance agent in paper production. In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener or densifier in foodstuff industry. | Packing: | It is packed with polythene bag as the inner layer, and a compound paper- plastic woven bag as the outer layer. The net weight of each bag is 25kg. | Quality index: | Name of index | GB25566-2010 | FCC-V | Sodium Tripolyphosphate ≥% | 85.0 | 85.0 | P2O5 ≥% | 56.0-58.0 | - | Fluoride (as F) ≤% | 0.005 | 0.005 | Arsenic (As) ≤% | 0.0003 | 0.0003 | Heavy Metal (as Pb) ≤% | 0.001 | - | Chloride (as Cl) ≤% | - | - | Sulfate (as SO42-) ≤% | - | - | Water Insoluble ≤% | 0.1 | 0.1 | pH (1% aqueous solution) | 9.5-10.0 | - | Whiteness ≥% | - | - | Pb ≤% | 0.0004 | 0.0002 |
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