Pentasodium Triphosphate, Sodium Triphosphate or Sodium Tri polyphosphate (STPP) Anhydrous

Sodium Tri polyphosphate


3H3PO4 + 5NaOH = Na5P3O10 + 7H2O
6H3PO4 + 5Na2CO3 = 2Na5P3O10 + 5CO2 + 9H20

Grades We Manufacture :

Sodium Tri Polyphosphate Anhydrous Industrial Grade

Sodium triphosphate is the sodium salt of the polyphosphate, which is the conjugate base of tri-phosphoric acid. STPP is a colourless salt, which exists as anhydrous and also as hexahydrate. Its wide spread use is well known in detergent industries. The most common method of preparation is by reacting Mono Sodium and Disodium Phosphates.


  Sodium Tri polyphosphate forms a key component of commercial detergents and is used widely for that purpose
  STPP serves as a food preservative, used to preserve meat, poultry, animal feeds and seafood
  STPP is used in ceramics to increase viscosity of the glazes.
  Other uses of STPP are leather tanning, in flame retardants, paper, anticorrosion pigments, textile, rubber manufacture, etc.


  HDPE bag with LDPE liner in 20 kg, 25kg, 40kg and 50 kg
  As per customer's request.


Product Name Sodium Tri polyphosphate (STPP) Anhydrous
IUPAC Name Pentasodium tri-phosphate
Molecular Formula Na5P3O10
Molecular Weight 368
Appearance White fine Powder
PH Range (1% w/v) 9.3 to 10.1
Poly % (minimum) 90.00
P2O5 content % (minimum) 56.00
'Na' Content % (minimum) 30.00
Iron as 'Fe' Content % 0.02
Chloride as 'Cl' Content % 0.2
Sulphate as 'SO4' content % 0.03


Plot No. N-43, M.I.D.C, Anand Nagar, Additional Ambarnath Indl. Area, Ambarnath (E), 421506, Dist. Thane, Maharashtra, India