Product: STPP
Appearance; white or yellowish fine powder
Food grade: 96%
Industry grade: 95%, 94%, 90%, 85%
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Indexes
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Industrial grade
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Food grade
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Na5P3O10
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94.0% min
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94.0% min
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P2O5
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57.0% min
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57.0% min
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Water Insoluble Matter
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0.10% max
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0.04% max
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Iron (Fe)
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0.015% max
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0.006% max
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PH value (1% water solution)
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9.2-10.0
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9.5-10.0
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Heavy Metal (as Pb)
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-
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0.001% max
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Arsenic (As)
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-
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0.0003% max
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Fluoride (F)
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-
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0.003% max
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Whiteness
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85% min
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85% min
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Ignition loss
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1.0
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/
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Density (g/cm3)
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0.35-0.9
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0.35-0.9
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Phase l
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10-30
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10-30
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Properties:
White powder, Melting point 662℃; Easily soluble I water; it has got salient chelating capacity to metal ions of Ca and Mg etc. and can soften hard water to make suspenaion into solution, alkalinity, without causticity.
Application:
1) Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, as dispersant of suspension such as paint, magnesium oxide, calcium carbonate drilling mud, and as preservative agent for paper making, organic synthesis catalyzer.
2) Used in epuration of petroleum product, gum latex storage, as dispersant, solvent metal industry and pharmaceutical industry.
3) Also widely used in gum synthesis, foodstuff industry, and poultry process.
Application; This product mainly uses in the rubber or the electric cable industry as the active filler, activator (natural rubber),natural rubber and chloroprene rubber vulcanizing agent, also uses in the coating, enamel, zinc pigments.