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Sodium tripolyphosphate (technical grade)STPP

Application grade: technical grade
Content: 94(%)
Particle size: white powder(mesh)
CAS RN: -
Executive standard: GB9983-88
Brand: Junlin
as detergent auxiliary, in petroleum, metallurgy, mining, water treatment, etc.
English name: sodium tripolyphosphate
Alias: Pentasodium Tripolyphosphate
Molecular formula: Na5P3O10
Molecular weight: 367.86()
Performance features: white particle or powder, apparent density 0.35-0.90g/cm3, melting point 622℃. Easily soluble in water, PH of 1% aqueous solution is 9.7.
Uses: This product is mainly used as water softener for industrial water, dyeing auxiliary, or as dispersing agent for paint, kaolin, magnesium oxide, calcium carbonate, etc.
Product quality: meets GB9983-2004 standard.
Technical requirement:

Technical index Index
superior product First-class product Qualified product
Sodium tripolyphosphate (Na5P3O10) %≥ 96 90 85
Phosphorus pentoxide(P2O5) %≥ 57.0 56.5 55.0
Water insoluble matter %≤ 0.10 0.10 0.15
Iron (Fe) %≤ 0.007 0.015 0.30
PH value (1% aqueous solution) % 9.2-10.0
Whiteness %≥ 90 80 70
Particle size1.00mm test sieve residue on sieve %≤