Industrial/Food/Detergent Grade Sodium Tripolyphosphate STPP

Product Description

Product Description 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.
STPP is an important auxiliary agent in synthetic detergents. Most of sodium tripolyphosphate is used in synthetic detergents, and a few are used for softening of food and industrial water.
Product Parameters

ITEM	STANDARD
assay (%) (na5p3o10)	95 min
appearance	white granular
p2o5 (%)	57.0 min
fluoride (ppm)	10max
lead (ppm)	4 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

Application
It can be used as the main auxiliaries for synthetic detergents, industrial water softeners, leather pretanning agents, dyeing auxiliaries, organic synthesis catalysts, pharmaceutical industry dispersants and food additives, etc.
Packaging & Shipping 1.25 KG/bag, 25MT/20'FCL
2.also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
Company Profile

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