What Is Ethylene Glycol?

Photo:Attribution Some rights reserved by Joe Dyer

The most important purpose of coolant is to cool the engine. To do that, it must prevent freeze ups during winter and boil overs in summer’s high heat.

The key component for this wonder is ethylene glycol. It is an odorless, colorless, syrupy, sweet-tasting liquid and is very toxic. This is why it should be handled and disposed of properly.

The used antifreeze is considered a hazardous waste under Federal guidelines because have ethylene glycol. Radiator Coolant should not be dumped into septic and drain systems, or onto the ground but should be recycled.

Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound primarily used as a raw material in the manufacture of polyester fibers and fabric industry, and polyethylene terephthalate resins (PET) used in bottling. A small percent is also used in industrial applications like antifreeze formulations and other industrial products. It is an odorless, colorless, syrupy, sweet-tasting liquid.

Ethylene glycol is moderately toxic, with children having been particularly at risk because of its sweet taste, until it became common to add bitter flavoring to consumer antifreezes containing it. It is also very polluting. It is for this reason that our VR-12 product is important for the automotive industry. The VR-12 is a solution to all these problems.


Ethylene glycol disrupts hydrogen bonding when dissolved in water. Pure ethylene glycol freezes at about −12 °C (10.4 °F), but when mixed with water, the mixture does not readily crystallize, and therefore the freezing point of the mixture is depressed. Specifically, a mixture of 60% ethylene glycol and 40% water freezes at −45 °C (−49 °F).[3] Diethylene glycol behaves similarly. It is used as a de-icing fluid for windshields and aircraft. The antifreeze capabilities of ethylene glycol have made it a component of vitrification (anticrystallization) mixtures for low-temperature preservation of biological tissues and organs. Mixture of ethylene glycol and water can also be chemically termed as Glycol Concentrate/ Compound/ Mixture/ Solution.

However, the boiling point for aqueous ethylene glycol increases monotonically with increasing ethylene glycol percentage. Thus, the use of ethylene glycol not only depresses the freezing point, but also elevates the boiling point such that the operating range for the heat transfer fluid is broadened on both ends of the temperature scale. The increase in boiling temperature is due to pure ethylene glycol having a much higher boiling point and lower vapor pressure than pure water; there is no chemical stabilization against boiling of the liquid phase at intermediate compositions, as there is against freezing.

So the best for the environment and cheaper solution for you is to recharge the additives thus prolonging the life of your coolant, how?, with the use of VR-12 – the ultimate cooling system protection. (Whithout Ethylene Glycol).

For only a few dollars you can protect every inch of cooling system, Lower engine temperatures, Prevent rust, corrosion, oxidation & electrolysis. Additionally, VR-12 protects all metals, Improves gas mileage and is a 100% organic green product that protects the planet while you save money.

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