Ethylene glycol is a versatile organic compound that has properties such as clarity, viscosity, and is also a hydroscopic liquid at room temperature. It is used in the manufacture of polyester films, fibers and PET resin for packaging, as well as a raw material in antifreeze coolants. MEG is the most important type of ethylene glycol. It is used in the manufacture of fibers, films, and bottles. DEG and TEG glycol are obtained as a co-product during the manufacturing process of MEG.