Pentasodium Triphosphate, Sodium Triphosphate or Sodium Tri Polyphosphate (STPP) - Anhydrous

Grades We Manufacture :
• Sodium Tri Polyphosphate Anhydrous Industrial Grade

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

Sodium triphosphate is the sodium salt of the polyphosphate, which is the conjugate base of tri-phosphoric acid. STPP is a colorless 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.

Application :
• 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

Specifications :

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
Sulfate as ‘SO4’ content % 0.03

Note:  All of our products are manufactured in

(A)Technical Grade for industrial use, water treatment, enzyme process, several animal feed, buffering agents in several pharmaceutical process, higher agriculture grade fertilizers, and other uses, as well as we manufacture

(B) Pure grade which successfully qualify to all pharmaceutical, AR, Indian Pharmacopoeia, British Pharmacopoeia, United States Pharmacopoeia, Food, Animal Feed, Seafood and laboratory reagent grade standards. This is to meet all the standards of quality in any grade required by customer. 

Packing :
• HDPE bag with LDPE liner in 20 kg, 25kg, 40kg and 50 kg
• As per customer’s request