Diethylene Glycol also known as DEG is an organic compound whose molecular formula is (HOCH2CH2)2O It is an odorless and colorless liquid but with sweetish taste. It is poisonous in nature. Also, it is hygroscopic. It is miscible not only with water but liquids such as alcohol, ether, acetone and ethylene glycol. It is produced by hydrolysis of ethylene oxide and is derived as a co-product along with monoethylene glycol and triethylene glycol. It is used as a solvent. It is denser than water.