Potassium permanganate, likewise called together Condy"s crystals or hypermangan, is a an extremely useful not natural chemical with disinfectant properties.

You are watching: What are the formula molar mass and color of potassium permanganate

Formula and structure: The chemical formula that potassium permanganate is KMnO4 and its molar mass is 158.034 g/mol. The is an ionic compound composed of the potassium cation (K+) and the permanganate anion (MnO4-), in i beg your pardon the manganese atom is enclosed to 4 oxygen atoms with three twin bonds and one solitary bond. The manganese steel is in the +7 oxidation state in this salt. Hard KMnO4 has actually an orthorhombic crystal structure.


Preparation: Potassium permanganate is all set industrially in a two-step procedure by reacting manganese dioxide (MnO2) through potassium hydroxide in air in ~ high temperatures to give potassium manganate (K2MnO4), i m sorry is then based on electrolytic oxidation to offer the potassium permanganate product:

2 MnO2 + 4 KOH + O2 → 2 K2MnO4 + 2 H2O

2 K2MnO4 + H2O → 2 KMnO4 + 2 KOH + H2

Physical properties: KMnO4 is uncovered as a bright purple colored crystalline solid. That is odorless and also has a thickness of 2.70 g/mL, and a melting allude of 240 °C. That is obtainable commercially together powder, crystals or tablets.

Chemical properties: Potassium permanganate easily dissolves in water to offer a characteristics bright purple, dark pink or magenta fancy solution. It is a strong oxidizer that stains most organic materials (including skin and clothing) the come into contact with it, due to the formation of a dark brown reduced product, MnO 2. The is stable at normal conditions, but decomposes upon heater to provide MnO2. Hard KMnO4 reacts violently with concentrated sulfuric acid, glycerol and also some basic alcohols.

Uses: KMnO4 is a strong oxidant i beg your pardon has powerful antiseptic properties and also is non-toxic in dilute concentrations. That is therefore used for dealing with sores, ulcers, eczema, dermatitis, fungal infections and also other skin conditions. That is additionally used widely in water treatment, fruit preservation, organic synthesis, photography, rocket propellants and in analysis chemistry as an important titrant.

See more: What To Bet With Your Boyfriend Lost A Bet, What Should He Do For Me?

Health effects/safety hazards: for its antiseptic and also medical uses, it must be offered in extremely dilute services only. Potassium permanganate is corrosive at high concentrations, and skin contact can reason irritation, redness and even burns. Swallowing high concentration of potassium permanganate can be very dangerous, and also can cause abdominal muscle pain, throat burning, cardiovascular collapse, kidney damage and also even death.