Antifreeze, is primarily a mixture of water and ethylene glycol . Ethylene glycol lowers the freezing point and raises the boiling point of radiator fluid. Simply put, it keeps the radiator fluid from freezing on very cold days and boiling over on hot days. Auto maintenance experts recommend that radiators be flushed every 1-2 years, resulting in used antifreeze that needs to be disposed. Antifreeze contains ethylene glycol, a hazardous chemical.
Ethylene glycol is a clear, colorless, and sweet tasting liquid.
Other hazardous chemicals found in used antifreeze are gasoline, copper, zinc, and lead. These chemicals become trapped and contaminate antifreeze. Hazardous chemicals may seep into the ground and contaminate the groundwater. New and used antifreeze should be stored properly to reduce accidents to children and pets attracted by its sweet smell and taste. Children also often confuse antifreeze for a beverage.