Why is antifreeze used in cars also "antiboil"? What is the sloute in antifreeze?

Question

Also Why is it important to periodically check the concentration of antifreeze in the radiator of an automobile?

i man solute* not sloute

i meant meant* not man long day for me

Answer 1

ethylyne glycole or something like that, been a long time since i took chemestry.

anyhow antifreeze/coolant lowers freezing point and raises boiling point of coolant. boiling point is also raised by pressurizing your cooling system something like 2-3 degrees for every pound of pressure and most cars run about 10-15 psi. another reason for checking is coolant goes bad and it allong with your radiator become a low voltage battery.

Answer 2

100 % antifreeze boils @ 212 degrees in atmospheric conditions. The boiling point of any dilution of water and antifreeze increases because of the pressure cap on the radiator. Fords have the the pressure caps at the top of the coolant recovery bottle. A 16 pound pressure cap on the radiator raises the boiling point of the water / antifreeze solution to 266 degrees Fahrenheit.

Get this, All Nextel cars use pure water and a chemical to make water wetter. Absolutely no antifreeze in any of them.

Prove this to yourself by using a Pyrex measuring cup directly on your stove to test the boiling point of antifreeze. Use a simple small cooking thermometer to do the test.

Answer 3

It's a 50% solution of ethylene glycol. It boils at higher temperature than water. It also doesn't - well, almost - evaporate. Unlike water. But the water component does thus causing lowering level in the system. Also, ethylene glycol has extremely low surface tension which makes it very "leakable" - a smallest hole water wouldn't go, it will leak through. This is another reason to check level from time to time to make sure it's full and, therefore, is not leaking anywhere.

Answer 4

water bolis at 212 50/50 coolanyt at 240.coolant also has anti rust stuff and waterpump lube in it