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Sodium Tripolyphosphate
Tech Grade
Product Name: Sodium Tripolyphosphate (STPP)
CAS No.:7758-29-4
Chemical Name:
Molecular Formula: Na5P3O10
Molecular Weight: 367.86
Properties:
White microdot powder with luster, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca, Mg, can soften hard water, change suspension into solution, alkalescent, without causticity.
Specifications:
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Main Contents |
94% min |
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Phosphorus pentoxide, as P2O5 |
57.0 % min |
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Iron, as Fe |
0.015% max |
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Insoluble matter in water |
0.1% max |
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PH, 1% |
9.2-10.0 |
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Density |
0.6-0.7/0.7-0.8 g/ml
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Application:
Mainly used for synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making organic synthesis catalyzer, and used in epuration of petroleum produce, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry also widely used in gum synthesis, foodstuff industry, and poultry process.
Packing and storage:
In PP bags, 25kg/50kg/1000kg net. Keep aeay form water or moisture, do not pile up the open air.
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