1.05080

Potassium permanganate

cryst. EMPLURA^®

• Synonym(s): Potassium permanganate, Permanganic acid potassium salt
• Empirical Formula (Hill Notation): KMnO₄
• CAS Number: 7722-64-7
• Molecular Weight: 158.03
• MDL number: MFCD00011364
• UNSPSC Code: 12352312
• EC Index Number: 231-760-3
• NACRES: NA.21

Properties

• vapor pressure: <0.01 hPa ( 20 °C)
• Quality Level: 200
• product line: EMPLURA^®
• Assay: 99.0-100.5% (manganometric)
• form: solid
• potency: 750 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.2% In water insoluble matter
• pH: 7-9 (20 °C, 20 g/L in H₂O)
• mp: >240 °C (decomposition)
• solubility: 64 g/L
• density: 2.70 g/cm³ at 20 °C
• bulk density: 1300‑1600 kg/m³
• anion traces: chloride (Cl^-): ≤0.01%; sulfate (SO₄^2-): ≤0.03%
• storage temp.: 2-30°C
• InChI: 1S/K.Mn.4O/q+1;;;;;-1
• InChI key: VZJVWSHVAAUDKD-UHFFFAOYSA-N

Description

Application

• Spectrophotometric Determination of Pharmaceuticals: Potassium permanganate is widely used in the spectrophotometric determination of pharmaceutical compounds. For example, it has been employed in the oxidative derivatization of beta-blockers such as atenolol and propranolol in alkaline medium, enabling the sensitive and accurate quantification of these drugs in pharmaceutical formulations. This method provides a rapid and cost-effective approach for pharmaceutical analysis (Vaikosen et al., Reviews in Analytical Chemistry, 2020).


• Environmental Monitoring: Potassium permanganate is used in environmental studies to oxidize and determine pollutants in water and soil samples. It is particularly effective in the oxidation of organic contaminants, facilitating their detection through various analytical techniques. Research has demonstrated the application of potassium permanganate in monitoring the oxidative degradation of ethanol in aqueous acidic media, highlighting its role in environmental analysis (Shimpi, International Journal of Science and Research, 2023).


• Food Preservation: Potassium permanganate is incorporated into packaging materials to extend the shelf life of perishable foods by scavenging ethylene, a ripening agent. Recent developments include the creation of low-density polyethylene-based multilayer films containing potassium permanganate and pumice, which effectively preserve the quality of avocados during storage. This application is crucial for reducing food waste and maintaining the quality of fresh produce (Wang and Ajji, Food Chemistry, 2023).

Analysis Note

Assay (manganometric): 99.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
In water insoluble matter: ≤ 0.2 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.03 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS03,GHS05,GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H272 - H302 - H314 - H361d - H373 - H410
• Precautionary Statements: P210 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 2 - Repr. 2 - Skin Corr. 1 - STOT RE 2 Inhalation
• Target Organs: Brain
• Storage Class Code: 5.1B - Oxidizing hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable