We supply phosphoric acid for general use in 2.5L and 25L containers, as well as 200L drums
Discounts available for bulk orders over 4 items
Full MSDS is also available to download from our website
Chemical and Physical Properties of Phosphoric Acid
Name: Phosphoric acid
Alternative names: Orthophosphoric acid
Molecular formula: H3PO4
Molecular weight: 97.996 g/mol
Appearance: Hygroscopic colourless crystals, forming a viscous solution in water
Odour and taste: Odourless but with an acid taste
Boiling point: 407°C (415°F)
Melting point: 42.4°C (108°F)
Solubility: Soluble in water, alcohol, and ether
Decomposition: Converts to pyrophosphoric acid (H4P2O7) when heated to over 200°C
Corrosivity: Corrosive to ferrous metals and alloys
Acidity: pH around 1.5 in aqueous solution (0.1N)
Common Uses of Phosphoric Acid
Manufacture of fertilisers (over 70%)
Manufacture of agricultural feeds
Water treatment
Used in soaps and detergents
Used in the food industry, including pet food and beverages
Used in cosmetic and personal hygiene products, in particular toothpastes
Manufacture of fire control products
Antifreeze
Used in the textile industry
Used as a catalyst
Used in the drilling industry
Rust removal
How Safe is Phosphoric Acid?
As an acid, phosphoric acid can be dangerous if not handled in a safe manner.
It’s not combustible but releases toxic fumes in a fire
If in contact with skin, it may cause chemical burns and blisters. It’s also an irritant to the eyes.
If inhaled or ingested, it causes a burning sensation in the throat and difficulties breathing. It can also result in abdominal pain and collapse.
Friendly Service
At ReAgent, we’re very proud of our friendly service. If you need help, a member of our customer service team will be glad to assist you before, during and after your order to ensure our products meet your needs. Simply contact us for further information.
Specification
Description
Limits
Units
Specific Gravity
1.684 - 1.695
H₃PO₄
M.W. 98
Assay
84.0 - 86.0
%
BulkCode
Pictogram
pictogramimage
id
Active
1284
GHS05
1
1
signalresult
Danger
BulkCode
Hazard Statement Code
Description
1284
H314
Causes severe skin burns and eye damage.
BulkCode
Precautionary Statement Code
Description
1284
P260
Do not breathe vapour/ spray.
1284
P280
Wear protective gloves/ protective clothing/ eye protection/ face protection.
1284
P305+P351+P338
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
1284
P501
Dispose of contents/ container in accordance with local regulations.
Phosphoric acid available to buy from trusted UK suppliers, 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
