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Home > Parts cleaning > Agents > Glycoles
Glycoles
Glycols is a class of chemical compounds containing two hydroxyl
groups. All of the lower molecular weight glycols are miscible
in water and the higher molecular weight types are used for
lubricants, plasticizers and in make-ups and cosmetic creams.
One of the largest use glycols is ethylene glycol which is found
in water-based emulsion paints as a dry time (wet edge) extender
and freeze thaw stabilizer and is used as a freezing point depressor
in automobile anti-freeze/coolant solutions. Propylene glycol
is found in products ranging from anti-freeze compounds that
may come in contact with food to pharmaceuticals and flavor
extracts. Common glycols are ethylene glycol, diethylene glycol,
propylene glycol, glycerol.
Some glycoles may have neurotoxic effects, may affect cardiocirculatory,
respiratory and gastrointestinal systems, and may produce liver,
kidney and pancreas damage. Besides, they are also dangerous
for the environment as they are air toxicants and volatile organic
compounds (VOC).
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