Corrosive
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respiratory tract. Liquid and vapors may irritate or burn eyes and skin.
| Physical Description | Hypophosphorous acid appears as colorless oily liquid or deliquescent crystals with a sour odor. Density 1.439 g / cm3. Melting point 26.5 °C. Inhalation of vapors irritates or burns the respirator… |
| Color/Form | Hygroscopic crystals or colorless oily liquid |
| Melting Point | 26.5 °C |
| Boiling Point | Decomposes upon heating >133 °C |
| Density | Marketed in aqueous solutions of varying concentrations, 50% (density 1.274), 30-32% (density 1.13), 10% (density 1.04) |
| Solubility | Miscible with water |
| Vapor Pressure | 0.00323 mmg Hg at 25 °C (effusion method: vapor pressure balance) |
| Stability/Shelf Life | Stable under recommended storage conditions. /Hypophosphorous acid solution/ |
| IUPAC Name | phosphinic acid |
| Molecular Formula | H3O2P |
| Molecular Weight | 65.996 g/mol |
| CAS | 6303-21-5 |
| SMILES | O[PH2]=O |
| InChIKey | ACVYVLVWPXVTIT-UHFFFAOYSA-N |
| Catalog No | KC.810078 |
| Pack sizes | 100ML · 500ML |
⚠️ For information only; not a substitute for the official SDS.
