Ethylene glycol is a colorless, odorless liquid commonly used as an antifreeze and coolant in vehicles. It has a sweet taste, which can be attractive to animals, making it important to handle with care. Ethylene glycol lowers the freezing point of water, helping to prevent engine damage in cold temperatures. In addition to its use in automotive applications, ethylene glycol is also found in the production of polyester fibers, resins, and plastic products. It is produced through the hydration of ethylene oxide, a compound derived from petroleum. Proper safety measures are essential when working with ethylene glycol due to its toxicity.