Preparation and uses of ethan- 1, 2. diol (glycol)

A dihydric alcohol, ethanediol is prepared commercially by acid hydrolysis of epoxy ethane (ethylene oxide).

1,2 Ethanediol is a colourless syrupy liquid with a high boiling point of 470 K. Its high boiling point is due to the presence of intermolecular hydrogen bonding. It shows all the reaction of -OH group.

Ethenediol is used as a coolant in automobiles. It is used for making dacron a fibre used in making clothes.