Hexasodium metaphosphate, hexasodium salt or Sodium Hexameta Phosphate (SHMP) - Anhydrous

Grades We Manufacture :
• Sodium Hexameta Phosphate, Anhydrous (Industrial Grade)

Formulation :
6H3PO4 + 6NaOH = (NaPO3)6 + 12H2O
6H3PO4 + 3Na2CO3 = (NaPO3)6 + 3CO2 + 9H2O

Sodium Hexameta Phosphate (SHMP) is a mixture of polymeric Meta phosphates of which the Hexamer is one. It is prepared by heating Monosodium Orthophosphate until it starts melting and the process is followed by rapid cooling.

Application :
• Sodium Hexameta Phosphate is widely used in water softeners & detergents
• Sodium Hexameta Phosphate is also used in leather tanning, dyeing, laundry work and textile processing
• SHMP is used in process called ‘threshold treatment’ which is softening of industrial water supplies
• SHMP is used as a sequestrant and as a food additive

Specifications :

Product Name Sodium Hexameta Phosphate (SHMP) Anhydrous
IUPAC Name -
Molecular Formula Na6P6O18
Molecular Weight 611.77
Appearence White Powder
PH Range (1% w/v) 6.0 to 8.0
Assay % / Purity % (minimum) -
P2O5 content % (minimum) 62.00
‘Na’ Content % (minimum) 21.00
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