Sodium Tripolyphosphate Stpp By Foodchem International Corporation

Description OF FOODCHEM China Preservative Food Grade STPP Sodium Tripolyphosphate
STPP Sodium Tripolyphosphate
Assay:94%;White powder/granule
Type:FOOD Grade,Tech Grade
25 KG/BAGS
Shelf life:2 years

STPP or sodium triphosphate is an inorganic compound with formula Na5P3O10. STPP,Sodium Tripolyphosphate is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. Sodium tripolyphosphate is produced by heating a stoichiometric mixture of disodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, under carefully controlled conditions. Sodium tripolyphosphate stpp

COA OF FOODCHEM China Preservative Food Grade STPP Sodium Tripolyphosphate
STPP,Sodium Tripolyphosphate Food Grade
ITEMSTANDARD
ASSAY (%) (Na5P3O10)95 MIN
APPEARANCEWHITE 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 DRYING0.7% MAX
HEXAHYDRATE23.5% MAX
WATER-INSOLUBLE SUBSTANCES0.1% MAX
HIGHER POLYPHOSPHATES1% MAX

STPP,Sodium Tripolyphosphate Tech Grade
ItemsStandards
Assay (%) (Na5P3O10)94%MIN
AppearanceWHITE GRANULAR
P2O5 (%)57.0 MIN
Bulk density0.4~0.6
Iron0.15%MAX
Temperature rise8~10
Polyphosphate0.5 MAX
PH value(%)9.2 - 10.0
Ignition loss1.0% MAX
20mesh through a Y90%