Permanganic acid (HMnO4), potassium salt. A highly oxidative, water-soluble compound with purple crystals, and a sweet taste. (From McGraw-Hill Dictionary of Scientific and Technical Information, 4th ed)
Oxidizing
Irritant
Health hazard
Environmental hazard
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Permanganic acid (HMnO4), potassium salt. A highly oxidative, water-soluble compound with purple crystals, and a sweet taste. (From McGraw-Hill Dictionary of Scientific and Technical Information, 4th ed)
| Physical Description | Potassium permanganate appears as a purplish colored crystalline solid. Noncombustible but accelerates the burning of combustible material. If the combustible material is finely divided the mixture… |
| Color/Form | Dark purple or bronze-like crystals; Almost opaque by transmitted light and of a blue metallic luster by reflected air. |
| Odor | Odorless |
| Melting Point | greater than 464 °F (USCG, 1999) |
| Density | 2.7 at 59 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | Soluble in many organic solvents; also by concentrated acids with the liberation of oxygen. |
| Vapor Pressure | Vapor pressure at 20 °C: negligible |
| Refractive Index | INDEX OF REFRACTION: 1.59 |
| Stability/Shelf Life | STABLE IN AIR AND LIGHT; SOLN ARE UNSTABLE |
| IUPAC Name | potassium permanganate |
| Molecular Formula | KMnO4 |
| Molecular Weight | 158.034 g/mol |
| CAS | 7722-64-7 |
| SMILES | [O-][Mn](=O)(=O)=O.[K+] |
| InChIKey | VZJVWSHVAAUDKD-UHFFFAOYSA-N |
| Catalog No | KC.1610271 |
| Pack sizes | 500GM |
⚠️ For information only; not a substitute for the official SDS.