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Product Name:
Sodium Tripolyphosphate
Product Details Brief DescriptionProduct: Sodium Tripolyphosphate (STPP)
CAS No.: 7758-29-4
Molecular Formula: Na5P3O10 Molecular weight: 367.86
Place of OriginCHINA BrandPOLANY Special FeaturesProduct: Sodium Tripolyphosphate (STPP)
CAS No.: 7758-29-4
Molecular Formula: Na5P3O10 Molecular weight: 367.86
Payment and Shipping Terms Payment TermsL/C,T/T Packaging DetailsPacking:
Plastic-woven sack with polythene inner bag; Net weight 25kg, 50kg or 1000kg; Keep away from water or moisture, do not pile up in the open air.
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| Detailed Product Description |
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Product: Sodium Tripolyphosphate (STPP)
CAS No.: 7758-29-4
Molecular Formula: Na5P3O10 Molecular weight: 367.86
1, Properties:
White microdot powder with luster, melting point at 622 o C, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca 2+, Mg 2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.
3, Specifications:
1. Industrial grade
Main content, %; 94.0
P2O5%≥ 57.0
Water insoluble %; 0.1
Iron, as Fe %; 0.015
pH of 1% water solution 9.2-10.0
2. Food grade
Main content, %: 94.0
P2O5%; 57.0
Water insoluble %; 0.05
Iron, as Fe %; 0.01
pH of 1% water solution 9.5-10.0
Heavy metal, as Pb %; 0.001
Arsenic, as As, %; 0.0003
Fluoride, as F, %; 0.003
Chloride, as Cl %; 0.025
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