Question on Carbon & its Compoun...

When acetic acid freezes at a temperature of 16.6 degree celsius, then it looks like a glacier. That is why freezed acetic acid is called glacial acetic acid.

 Pure, water-free acetic acid (glacial acetic acid) is a colourless liquid that absorbs water from the environment (hygroscopy), and freezes to a colourless crystalline solid.

 a clear, colorless liquid or crystalline substance (CH3COOH) with a pungent odor. It is obtained by the destructive distillation of wood, by oxidation of acetylene and water by air, or by the oxidation of ethyl alcohol by aerobic bacteria, as in the production of vinegar. Glacial acetic acid is strongly corrosive and potentially flammable, having a low flash point. It is miscible in alcohol, ether, glycerol, and water and is used as a solvent for organic compounds. Also called vinegar acid.