4 KMnO4 + 3 C2H5OH → 4 MnO2 + 4 KOH + 3 CH3COOH + H2O

This is an oxidation-reduction (redox) reaction:

4MnVII+12e-→4MnIV(reduction)

3C-II-12e-→3CII(oxidation)

KMnO4 is an oxidizing agent, C2H5OH is a reducing agent.

This is a precipitation reaction: MnO2 is the formed precipitate.

Reactants:

• KMnO4 – Potassium manganate(VII)
  • Other names: Potassium permanganate , Chameleon mineral , Condy's crystals ... show morePermanganate of potash Hypermangan , Permanganic acid potassium salt show less
  • Appearance: Purplish-bronze-gray needles | magenta–rose in solution ; Dark purple crystals
• C2H5OH – Ethanol
  • Other names: Absolute alcohol , Alcohol , Cologne spirit ... show moreDrinking alcohol , Ethylic alcohol , EtOH , Ethyl alcohol , Ethyl hydrate , Ethyl hydroxide , Ethylol , Grain alcohol , Hydroxyethane , Methylcarbinol , Ethanol (anhydrous) , C2H5OH , 1-hydroxyethane , Lux , Spirits of wine , Infinity Pure , Tecsol C , Punctilious ethyl alcohol , Hinetoless , Absolute ethyl alcohol , Ethyl alc , Ethyl alcohol usp , Denatured alcohol , Fermentation alcohol , Distilled spirits , Cologne spirits , Anhydrol , Potato alcohol , Alcohols , Ethyl alcohol anhydrous , Ethanol solution , Thanol , Denatured ethanol , Pyro , Spirt , Anhydrous alcohol , Alcare Hand Degermer , Ethanol 200 proof , Jaysol , Molasses alcohol , Ethicap , Desinfektol EL , Absolute ethanol , Jaysol S , Algrain , Spirit , Synasol , Diluted Alcohol , Undenatured Ethanol , Dehydrated alcohol , Tecsol , E1510 , Alcohol anhydrous , Alcool éthylique , Alcohol etílico , Alcohol, denatured , Alcohol (ethyl) , Ethyl Alcohol , Äthylalkohol , Alkohol , Spiritus vini , Éthanol , Äthanol , Alcohol denatured , 1-Hydroxyethane , Etanol , Dehydrated ethanol , Methyl carbinol show less
  • Appearance: Colorless liquid ; Colourless liquid with characteristic odour ; Clear, colorless liquid with a weak, ethereal, vinous odor.

Products:

• MnO2 – Manganese oxide , Manganese(IV) oxide
  • Other names: Manganese dioxide , Pyrolusite , Hyperoxide of manganese ... show moreBlack oxide of manganese , Manganic oxide , MnO2 , MnO₂ , Manganese(IV)oxide , Manganese peroxide show less
  • Appearance: Brown-black solid ; Black-to-brown powder
• KOH – Potassium hydroxide
  • Other names: Caustic potash , Lye , Potash lye ... show morePotassia , Potassium hydrate , KOH , E525 , Potassium lye , Lye [Potassium hydroxide] show less
  • Appearance: White solid, deliquescent ; White hygroscopic solid in various forms ; Odorless, white or slightly yellow lumps, rods, flakes, sticks, or pellets. [Note: May be used as an aqueous solution.]
• CH3COOH – Acetic acid , Ethanoic acid
  • Other names: Vinegar (when dilute); Hydrogen acetate; Methanecarboxylic acid , Methanecarboxylic acid , CH3-COOH ... show moreAcetic acid, glacial , HOAc , Vinegar , Essigsäure , Glacial acetic acid , Ethanoate , Acide acétique , Ethylic acid , Ethoic acid , Aceticum acidum , Ethanoat , E260 , CH3COOH , Acetic acid (aqueous) , [Note: Can be found in concentrations of 5-8% in vinegar.] show less
  • Appearance: Colourless liquid ; Colourless liquid with pungent odour ; Colorless liquid or crystals with a sour, vinegar-like odor. [Note: Pure compound is a solid below 62°F. Often used in an aqueous solution.]
• H2O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas