Phosphoric Acid (H3PO4)

This is our most popular Phosphoric Acid (H3PO4) - Phosphoric Acid 85% (General Use)

Phosphoric Acid 85% (General Use)

Phosphoric Acid 85% (General Use)


Our most popular product is displayed above. Other variants of this product are displayed below.

Where Can I Buy Phosphoric Acid in UK?

You can buy phosphoric acid from trusted UK chemical manufacturers, ReAgent. Shop online today where we sell phosphoric acid in a variety of pack sizes, from 2.5L containers to 200L drums and 1000L IBCs.

With discounts available on bulk orders, a promise of 24 hour shipment, and a 100% quality guarantee on all products, buying phosphoric acid has never been easier. Visit our online shop today or contact us to speak with a member of our expert team.

What is Phosphoric Acid?

Phosphoric acid, also known as orthophosphoric acid, is a colourless and viscous liquid mineral acid. It is also entirely odourless. In its pure form, phosphoric acid is a crystalline solid, although it is rarely distributed in this form. Highly concentrated phosphoric acid is classed as a corrosive. However, it is easily diluted and is classed as non-toxic when mixed with water.

The alternative term, orthophosphoric acid, is sometimes used in order to distinguish it from related phosphoric acids known as polyphosphoric acids.

What is Phosphoric Acid Used For?

Phosphoric acid has many uses both in a laboratory and in real world situations. It has proven medicinal uses in dentistry and orthodontics, and it is also commonly found in soda products as an additive. Phosphoric acid is also used in:

  • Anodizing solutions
  • Electrolytes for phosphoric acid fuel cells
  • Removal of rust by conversion of iron oxide into ferric phosphate
  • In food preparation, where it is numbered as additive E338
  • A flux as an aid to soldering
  • Plant fertilisers
  • Anti-nausea medication