Phosphoric acid (H3PO4), or orthophosphoric acid, is a colorless, odorless, and non-volatile syrupy liquid (or solid at ) commonly used in 85% aqueous solution. As a weak triprotic acid, it is essential in industry, with roughly 80% used to produce fertilizers. It is widely used for rust removal, dental etching, food flavoring, and pH regulation in water treatment and cosmetics.
Phosphoric acid appears as a clear colorless liquid or transparent crystalline solid. The pure solid melts at 42.35 °C and has a density of 1.834 g / cm3. Liquid is usually an 85% aqueous solution. Shipped as both a solid and liquid. Corrosive to metals and tissue. Used in making fertilizers and detergents and in food processing.
| Chemical Formula | H₃PO₄ |
| Molecular Weight | 98.00 g/mol |
| Appearance | Colorless Liquid / Syrupy Solution |
| Purity | 85% / 98% (Industrial Grade) |
| Melting Point | 42.35 °C |
| Boiling Point | 158 °C |
| Solubility | Completely Soluble in Water |
| Usage | Fertilizers, Food Additives, Rust Removal, Water Treatment, Pharmaceuticals |
| Packaging | 35 kg / 50 kg Carboys / 250 kg Drums |
| MOQ | 1 Kilogram |
| Origin | India |