STPP(Industrial grade)
Chemical formula: Na5P3O10
Standard executed: GB9983-2004
Technical Specifications:
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Specifications
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Industrial grade
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Sodium Tripolyphosphate (as Na5P3O10)% ≥
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94
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Phosphorus Pentoxide (as P2O5)% ≥
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57.0
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Water insoluble matter % ≤
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0.10
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Fe% ≤
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0.015
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PH value
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9.2--10.0
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Whiteness % ≥
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90
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apparent density
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0.35-0.9
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Properties: white powder, apparent density:0.35-0.90g/ml, melting point: 622degree, easily dissolving in water; water solution is alkaline(PH value of 1% solution is 9.7)
Application: mainly used as syndet adjuvant, soap synergist and has strong emulsification on
lubricant and oils and fats, can be used to adjust the PH value of buffer soap solution;
can be used as water softener for industrial water, etc.
Packing:25kgs/50kgs/1,000kgs plastic-lined woven bags.