STPP(Sodium Tripolyphosphate)

Other Name: Pentasodium triphosphate
Appearance: White powder or granular
Cas.No.: 7758-29-4
E Code/Number: E451
Purity:94%min, P2O5 (%):57%min
Grade: Food, Ceramic, Detergent etc
Certificate: ISO/SGS/Halal/FDA/Kosher/GMP/ HACCP/Non-Gmo/Organic Certificate
Package: 25kg bag
MOQ:5000kg

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Sodium Tyipolyphosphate(STPP)

Description of Sodium Tyipolyphosphate(STPP)

STPP is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.

Technical Specification of Sodium Tyipolyphosphate(STPP)

ITEM	STANDARD
assay (%) (na5p3o10)	95 min
appearance	white granular
p2o5 (%)	57.0 min
fluoride (ppm)	10max
cadmium (ppm)	1 max
lead (ppm)	4 max
mercury (ppm)	1 max
arsenic (ppm)	3 max
heavy mental (as pb) (ppm)	10 max
chlorides (as cl) (%)	0.025 max
sulphates (so42-) (%)	0.4 max
substances not dissolved in water (%)	0.05 max
ph value (%)	9.5 - 10.0
loss on drying	0.7% max
hexahydrate	23.5% max
water-insoluble substances	0.1% max
higher polyphosphates	1% max