Potassium permanganate
General Product Information
| Article | Potassium permanganate |
| Synonyms | Potassium manganate(VII), Permanganate of potash |
| CAS No. | 7722-64-7 |
| EEG No. | 025-002-00-9 |
| EINECS No. | 231-760-3 |
| IMO | Class 5.1 |
| Tariff Code | 28416100 |
| UN No. | 1490 |
| VLG/ADR | Class 5.1, Packing Group II |
Description
Potassium permanganate is an inorganic compound with powerful oxidative properties. Potassium permanganate is a bright purple crystalline compound mainly used as an oxidizer in various industries, such as water treatment and Chemical Industry. It is often used as a disinfectant, sanitizer and in analytical Applications.
Characteristics
- Grade: Technical.
- High purity: Meets pharmaceutical requirements for use in medicinal applications.
- Sensitive to reducing agents: Useful in various chemical processes and Applications.
- Oxidizing ability: Potassium permanganate is a strong oxidizing agent and is often used in redox reactions.
- Oxidizer: Potassium permanganate is classified as an oxidizer (VLG/ADR 5.1), which means it can react with flammable substances and reducing agents. At improper storage or handling, it can cause fire or explosions. It is corrosive and can cause serious eye or skin damage at contact
Physical & Chemical Properties
| Chemical Structure | KMnO4 |
| Molar Weight | 158.04 g/mol |
| Melting Point | 240 °C (the substance decomposes at this temperature point) |
| Boiling Point | – |
| Solubility | Highly soluble in water. |
| Density | 2.7 g/cm³ |
| Refractive Index | – |
| pH | – |
| Color | Purple |
| Shape | Crystalline powder or liquid |
Applications
Potassium permanganate is applied in various ways, for instance:
1. Water treatment
Potassium permanganate is widely used for water treatment, where it serves as a disinfectant and as an oxidizing agent to remove contaminants such as iron, manganese and organic matter.
2. Analytical Chemistry
Potassium permanganate is used in titrations and as a reactant for detecting reductive substances in laboratory settings.
3. Chemical Industry
It is used in the chemical industry as an oxidizer in the synthesis of other chemicals and for processing organic substances.
Interessing Links
- CAS Common Chemistry – Permanganic acid
- Codex Alimentarius (FAO/WHO) – Guidelines and standards for food additives and food ingredients.
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Potassium Permanganate of the National Library of Medicine by the National Center for Biotechnology Information.
- Wikipedia – Potassium permanganate