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. Introduction Appearance: white odorless powder or granule MF:Na5P3O10 Purity: 94% Min, 94% Na5P3O10 (%):...

Product Details

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.



Appearance: white odorless powder or granule


Purity: 94% Min, 94%

Na5P3O10 (%): 94%MIN

CAS No.:7758-29-4

EINECS No.:231-838-7

HS code:28353190

Founction: food additive bean & dairy product etc.

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Technical Specification



assay (%) (na5p3o10)

95 min


white granular

p2o5 (%)

57.0 min

fluoride (ppm)


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


23.5% max

water-insoluble substances

0.1% max

higher polyphosphates

1% max


STPP can tender the meat and enhance glutinosity of ham and canned foods, increase weight and keep fresh of seafoods.


25kg pp bags, 25MT/20’FCL


Storage and Transportation

Stored in a ventilative and dry warehouse instead of in the open air,kept away from water

Related Keywords

STPP/Sodium Tripolyphosphate /Sodium Tripolyphosphate 94% 

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