2.CAS:7758-29-4
3.purty 94%
4.used as one of the main auxiliaries for synthetic detergent.

STPP

1.SYNONYM: STPP 
   Molecular formula: Na₅P₃O₁₀ 
   Molecular weight.: 368 
2.CAS NO.: 7758-29-4 
  GRADE: TECH.GRADE  
3.DESCRIPTION: WHITE GRANULAR OR POWDER 
4.SPECIFICATIONS:

CONTENT	94% MIN.
P2O5 CONTENT	57%MIN.
WHITENESS	88%MIN.
INSOLUBLE MATTER	0.1%MAX.
Fe	70PPM MAX.
SIZE: RESIDUE ON 1.00 TEST SIEVE	5.0%MAX.
LOSS ON IGNITION (500)	1% MAX.
PH VALUE (1% SOLUTION)	9.2-10.0
BULK DENSITY (g/cm3)	0.65-0.99
PHASE	10-50%

5. Application::
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 suspensions 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.
6.PACKING: : Woven bag lined with plastic bag, net weight per bag. 25kgs .
7.H.S.CODE.: 2835.3100