Sodium Tripolyphosphate(STPP)
Sodium Tripolyphosphate(STPP)
Certificate of Specification
Sodium tripolyphosphate for food additive
Molecular formula：Na5P3O10
No. of standard：EN E 451 (i)
Uses: Mainly used in meat foods, meat cans and other food industries as quality improver.
ITEMS
UNIT
SPECIFICATION
colour
white
Appearance
Powdery or granular
Na5P3O10
w %
≥90
P2O5
w %
56.0-59.0
Water insoluble matter
w %
≤0.1
PH
9.1-10.2
loss on drying（105℃,1h）
w/%
≤0.7
Fluoride (F)
mg/kg
≤10
Arsenic（As）
mg/kg
≤1
Lead（Pb）
mg/kg
≤1
Cadmium （Cd）
mg/kg
≤1
Mercury（Hg）
mg/kg
≤1
Heavy Metal (as Pb)
mg/kg
≤10
Pyro-(as(NaPO3)3)
mg/kg
≤1
Uses: Mainly used in meat foods, meat cans and other food industries as quality improver.
Packing: 25kg/bag
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