7.5 - Preparation and Properties of Ethanoic Acid (Leaving Cert Chemistry): Flashcards

Ethanol ($C_2H_5OH$)

Sodium dichromate ($Na_2Cr_2O_7$)

Sulfuric acid ($H_2SO_4$)

Ethanal (acetaldehyde)

Distillation

Exothermic

Prevents vigorous reaction, highly exothermic

30 minutes

Orange ($Cr_2O_7^{2-}$) to green ($Cr^{3+}$)

Vinegar

Green to red (acidic)

Hydrogen gas ($H_2$)

Carbon dioxide ($CO_2$)

Ethyl ethanoate

Complete oxidation without loss of volatiles