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Specification
|
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 |
Details
Sodium Tripolyphosphate(STPP)
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
Contact: FINECHEM GROUP LIMITED
Phone: 15002176312
Tel: 0086-15002176312
Add: Building 1, No. 1036 Xishai Road, Fengxian District, Shanghai，China
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