Potassium permanganate, with the molecular formula KMnO4, is an oxidizing agent categorized as a synthesis reagent. It has a Molecular Weight of 158.03 g/mol. This chemical substance belongs to both potassium compounds and manganese compounds groups. In the workplace, it requires various safety measures such as wearing safety gloves, using safety goggles, and prohibiting open flames due to its corrosive and oxidizing properties. The European Union has recommended indicative occupational exposure limits for this compound, with an 8-hour limit value of 0.2 mg/m3 (inhalable fraction) and 0.05 mg/m3 (alveolar fraction), as manganese.

• CAS Number: 7722-64-7
• Molecular Formula: KMnO4
• Molecular Weight: 158.034
• Exact Mass: 157.881408
• Melting Point: greater than 464 °F (USCG, 1999)
• Density: 2.7 at 59 °F (USCG, 1999) - Denser than water; will sink
• GHS Signal Word: Danger
• Hazard Statements:
• H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]