4K2Cr2O7 + 16H2SO4 + 4C2H5OH → 4Cr2(SO4)3 + 4K2SO4 + 3CH3COOH + 2CO2 + 22H2O
Potassium dichromate react with sulfuric acid and ethanol to produce chromium(III) sulfate, potassium sulfate, acetaldehyde, carbon dioxide and water. Sulfuric acid - concentrated solution. The reaction takes place in a boiling solution.