3 C2H2 + K2Cr2O7 + 4 H2SO4 → 3 CH3COOH + Cr2(SO4)3 + K2SO4 + H2O
This is an oxidation-reduction (redox) reaction:
3 C-I - 9 e- → 3 CII (oxidation)
3 C-I + 3 e- → 3 C-II (reduction)
2 CrVI + 6 e- → 2 CrIII (reduction)
C2H2 is a reducing agent, C2H2 is an oxidizing agent, K2Cr2O7 is an oxidizing agent.
Reactants:
Products:
- CH3COOH – Acetic acid , Ethanoic acid
- Other names: Vinegar (when dilute); Hydrogen acetate; Methanecarboxylic acid , Methanecarboxylic acid , CH3-COOH
- 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.]
- Cr2(SO4)3 – Chromium(III) sulfate
- K2SO4
- H2O – Water, oxidane