Q:

At what temperature does antifreeze freeze?

A:

Quick Answer

Anti-freeze typically is rated to freeze at minus 34 F. The freeze point includes the recommended 1-1 ratio of antifreeze with water. If the mixture is altered to a blend that includes 70 percent antifreeze to 30 percent water, the freeze point of the product becomes minus 67 F.

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At what temperature does antifreeze freeze?
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Full Answer

At the other end of the spectrum, the boiling point of a 1-1 ratio of antifreeze and water is 223 F. If the blend is altered to 70 percent antifreeze to 30 percent water, the boiling point rises to 235 F. Antifreeze is made of ethylene glycol with a chemical formula of C2H6O2.

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