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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.
1. Spec.
|
ITEM |
INDEX |
|
|
Tech. Grade |
Food Grade |
|
|
Na5P3O10 (%): |
94Min |
95Min |
|
P2O5 (%): |
57Max |
57Max |
|
Insolubles in water (%): |
0.15Max |
0.05Max |
|
Fe (%): |
0.007Max |
N |
|
Ph (1% solution): |
9.2-10 |
9.5-10 |
|
Heavy metal (As Pb) (%): |
N |
0.001Max |
|
Arsenic (As) (%): |
N |
0.0003Max |
|
Fluoride(F) (%): |
N |
0.003Max |
|
Whiteness(%): |
90Min |
90Min |
|
Density |
0.35-0.9 |
0.35-0.9 |
|
I type content (%) |
10-30 |
10-30 |
Application:
Used in detergent, synergist for soap; water softener; tanning agent for leather making, auxiliary for dyeing;
an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate
and drilling mud etc.; As an oil contamination resistance agent in paper production. In foodstuff industry it is used
as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender
the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener
or densifier in foodstuff industry.
Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for leather
making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide,
calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production. In foodstuff industry it
is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender the
meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener or densifier in
foodstuff industry.
