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antifreeze
(redirected from Anti-freeze)

   Also found in: Medical, Encyclopedia, Wikipedia 0.07 sec.

antifreeze

Substance added to a water-cooling system (for example, that of a car) to prevent it freezing in cold weather.

The most common types of antifreeze contain the chemical ethylene glycol, or (HOCH2CH2OH), an alcohol with a freezing point of about −15°C/5°F.

The addition of this chemical depresses the freezing point of water significantly. A solution containing 33.5% by volume of ethylene glycol will not freeze until about −20°C/−4°F. A 50% solution will not freeze until −35°C/−31°F.


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Features such as counters used for the sale of gasoline dispensed from pump islands and automobile supplies (such as oil, anti-freeze and window-washer fluid) are devoted to the marketing of petroleum products.
In addition, an increasing number of consumers are adding anti-freeze and flushing their own radiator/cooling systems.
1 through June 30, 2000, the hauler will accept only anti-freeze, car batteries, used motor oil and latex paint.
 
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