KIO3 + 5 KI + 6 CH3COOH → 3 I2 + 6 CH3COOK + 3 H2O
This is an oxidation-reduction (redox) reaction:
5 I-I - 5 e- → 5 I0 (oxidation)
IV + 5 e- → I0 (reduction)
KI is a reducing agent, KIO3 is an oxidizing agent (synproportionation (comproportionation)).
Reactants:
- KIO3 – Potassium iodate
- KI
- 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.]
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