Phosphinic Acid

• CAT Number: M009451
• CAS Number: 6303-21-5
• Molecular Formula: HO2P
• Molecular Weight: 63.98
• Purity: ≥95%
• Synonyms: hypophosphorous;hypophosphorousacid(corrosiveliquid,acidic,inorganic,n.o.s.);Hypophosphorousacid50%;HYPOPHOSPHORIC ACID;HYPOPHOSPHOROUS ACID;HYPOPHOSPHORUS ACID;PHOSPHINIC ACID;Hypophoaphoeous acid
• Storage: -20°C
• IUPAC Name: phosphenous acid
• InChI: InChI=1S/HO2P/c1-3-2/h(H,1,2)
• InChIKey: GQZXNSPRSGFJLY-UHFFFAOYSA-N
• SMILES: OP=O

Phosphinic acid (H₃PO₂), also known as hypophosphorous acid, is a monoprotic oxyacid of phosphorus. It has a phosphorus atom bonded to two hydrogen atoms, one hydroxyl group, and one oxygen atom. Phosphinic acid is a powerful reducing agent, commonly used in chemical synthesis, particularly for reducing metal salts to their metallic form. It is also utilized in the preparation of hypophosphite salts and in electroless plating processes, especially for coating metals like nickel. Due to its strong reducing properties, phosphinic acid is widely used in industrial applications, including the production of polymers, pharmaceuticals, and as an antioxidant in chemical processes.