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Industrial phosphates

Sodium tripolyphosphate (STPP) - Na5P3O10 is widely used as a component for the production of synthetic detergents, and in the production processes of the petroleum, glass, ceramic, paint and varnish, metallurgical and chemical industries.

Please send us an e-mail if you would like to submit an order for STPP: 

Key metrics of STPP grades: 

Sodium Tripolyphosphate (STPP)Granular formPowder form
SpecificationGRFH 55‑70SP 0‑10SP 35‑55MP 35‑55HP 35‑55
P2O5, content, % (min.)55,555,555,055,556,057,0
Na5P3O10, content, % (min.)949490929494
Phase (Form) I, %-55-700-1035-5535-5535-55
Bulk density, gr/cm30,9-1,10,9-1,20,9-1,20,9-1,10,9-1,1

Technical data sheets for primary STPP grades: 


Sodium tripolyphosphate (tech. grade) – Granular form (GR)

MAP 12:52

Sodium tripolyphosphate (tech. grade) – Fast-hydrating form (FH 55-70)MAP 12:52
Sodium tripolyphosphate (tech. grade) – Slow-hydrating form (SP 0-10)MAP 12:52
Sodium tripolyphosphate (tech. grade) – Slow-hydrating form (SP 35-55)MAP 12:52
Sodium tripolyphosphate (tech. grade) – Slow-hydrating form (MP 35-55)MAP 12:52
Sodium tripolyphosphate (tech. grade) – Slow-hydrating form (HP 35-55)MAP 12:52

General information

The only manufacturer of sodium tripolyphosphate in Russia is PhosAgro subsidiary Volkhov branch of Apatit. The production site is located in Volkhov, Leningrad region, which is near the St Petersburg port. With well-developed infrastructure, including highways and a large railway junction, Metachem can easily ship its production to customers around the world.

Apatite concentrate used in the STPP production process is mined by PhosAgro at the Kirovsk branch of Apatit. The company extracts one of the purest natural materials in the world, which is of magmatic origin and is characterised by its high nutrient content and very low levels of heavy metals. The use of phosphate rock from apatite mined at the Khibiny deposits contributes to the production of the highest-quality products. 

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