At approximately 198 degrees Fahrenheit.
it lowers the temperature by forming hydrogen bonds that allow it to melt and boil faster
coolant is a mixture of antifreeze and water (usually 50/50) If you were to use just water, you would not have either freeze protection or overheat protection. Water freezes at 32 degrees. Antifreeze could protect engine to -20 to -30 degrees. Water (with no pressure) will boil at 212 degrees. Antifreeze will delay "boil-over" to a much higher temperature (I am not sure of number)
It does NOT boil faster than water. It has higher boiling point AND lower freezing point. - Antifreeze boils at about 197 c.
If your use anything more concentrated than about half anitfreeze and half water, the radiator water will freeze at a considerably warmer temperature. There will be less protection. Also, antifreeze actually helps keep your car running cooler in summer. If you use straight antifreeze, the car will "boil over" at a much lower temperature. There will be less protection.
Yes, drinking water does boil at a lower temperature than salt water.
A 50/50 mixture of water and ethylene glycol antifreeze in the cooling system will boil at 225 degrees if the cap is open. But as long as the system is sealed and holds pressure, a radiator cap rated at 15 psi will increase the boiling temperature of a 50/50 coolant blend up to 265 degrees. If the concentration of antifreeze to water is upped to 70/30 (the maximum recommended), the boiling temperature under 15 psi of pressure goes up to 276 degrees.
Place the container of water in a vacuum & it should start to boil at room temperature.
100
212
Gabe temperature
The mixture of the two liquids (water and antifreeze ethylene glycol))has a higher boiling point and lower freezing point than water alone.