Go Back

Phosphoric Acid (Technical)

CAS # 7664-38-2


Phosphoric Acid is a colorless, odorless phosphorus-containing inorganic acid. It has a role as a solvent, a human metabolite, an algal metabolite and a fertilizer. It is miscible with water, ethanol and mixture of ether: alcohol (3:1).




Transparent Colorless Fluid

Actual Active Ingredient (H3PO4)

85.10 %

Chloride ( as Cal)

0.0003 %

Sulphate (as SO4)

0.003 %

Heavy Metal (as Pub)


Arsenic ( as As)


Iron (as Fe)

0.0003 %

Acetic Acid ( CH3COOH)

1.94 %




·         Phosphoric acid is used mainly in fertilizers.


·         It is used as an external standard for phosphorus-31 Nuclear magnetic resonance (NMR)


·         It is used as an electrolyte in phosphoric acid fuel cells and as a catalyst in the hydration of alkenes to produce alcohols, predominantly ethanol.


·         It finds application as a buffer agent in biology and chemistry; as a solution for anodizing and as a cleaner by construction trades to remove mineral deposits, cementations smears and hard water stains.


·         It is also used as a pH adjuster in cosmetics and skin-care products and a dispersing agent in detergents and leather treatment.

·         It plays an important role in the preparation of albumin derivatives.


·         It is an important starting material used in the preparation of disodium hydrogen phosphate, disodium phosphate, calcium hydrogen phosphate and monohydrate phosphate.


·         It is widely used to remove rust in steel tools or surfaces by converting the rusted ion in to water soluble phosphate compound.