What is glycol?

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Glycol is an organic compound that belongs to the alcohol group.  One molecule of glycol is composed of two hydroxyl groups that is commonly attached to various atoms of carbon.  When speaking about glycol, most people also refer to “ethylene glycol” which is considered the simplest form of glycol.  Another popular derivative of the glycol group of compounds is propylene glycol.  Both forms are said to be colorless and have thick syrup-like consistency.  Ethylene glycol that comes from ethylene is odorless, while propylene glycol derived from natural gas has minimal odor.  Both glycol compounds are very useful in the manufacture of various products across different industries.

In the case of ethylene glycol, its major use is in the automobile and geothermal industries.  Its ability to disrupt the bonding of hydrogen molecules makes it a good ingredient for anti-freeze products for vehicles or cars.  Ethylene glycol is also widely used in the manufacture of air conditioning and/or heating systems.  The basic function of ethylene glycol in these systems is to allow heat transfer to provide energy.  Whether the design is to conserve the heat or dissipate it, ethylene glycol will ensure that the heat is used up to either provide cooling or heating.

Propylene glycol meanwhile is used by various industries.  Many household products like room sanitation sprays, tile cleaners, and deodorizers contain this active ingredient.  Soaps also contain this compound to help them retain its shape and stop melting too easily.  Propylene glycol is also useful in the perfume industry as it helps retain the scent of other essential oils that are added into the fragrance mixture. The food industry also uses this type of alcohol in making food preservatives among many others.  Beauty products like lotions, skin creams, shampoos, and deodorants also contain propylene glycol.  Although there are certain concerns regarding glycol’s supposed high toxicity, proponents of the use of this organic compound usually insist that it is actually safe for use in household or hygiene products.

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