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Sodium Tripolyphosphate (STPP)

Sodium tripolyphosphate (STPP) is an inorganic compound within a variety of domestic and industrial products, especially detergents.

We offer fast, nationwide STPP delivery courtesy of our delivery fleet, packing in 25kg bags.


Cleaning Chemicals & Detergents

- Detergents: The majority of STPP is consumed as a component of commercial detergents.

Textile Chemicals & Dyes

- Textiles industry: Used as a leather tanning agent and on other materials for flame retardants.


- Food and beverage: STPP is recognised as a safe ingredient for food and beverages and therefore is commonly found in food production as E number E451.


Airedale Chemical: leading UK suppliers of bulk sodium tripolyphosphate to industry

Holding the chemical formula Na5P3O10, our sodium tripolyphosphate comes as a solid powder, packed in 25kg bags.

To discuss your STPP needs, get in touch with our team today.

Sodium tripolyphosphate: a softener, tanning agent, flame retardant & food additive

This colourless sodium salt is produced under carefully-managed conditions by heating a mixture of disodium phosphate and monosodium phosphate. This method produces around 2 million tonnes of STPP annually.

As a water softener with a relatively low environmental impact and toxicity level, STPP is prime for use in the detergents and cleaning industry. Commercial detergency products account for the majority of STPP consumption.

A non-flammable compound, STPP also holds use across the textile industry as a synthetic leather tanning agent and masking agent. It also holds use in anticaking agents, flame retardants, rubber manufacture, ceramics (for decreasing viscosity) and much more.

Looking to buy bulk sodium tripolyphosphate? We can help

We have five decades’ experience helping organisations to meet their varied chemical requirements.

We can facilitate bulk orders of any size, offering 25kg bags for fast, wholesale delivery across the UK. To discuss your needs and to request a sodium tripolyphosphate (STPP) MSDS, get in touch by clicking the ‘Enquire now’ button below.

Alternatively, you message our product experts through our contact page, by emailing or by phoning 01535 637 876.

CAS Number:
EC Number:
Other names:
Sodium Tripolyphosphate, Polygon, STPP
White powder

Available in the following sizes.

25kg Bag

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