What is the principle of antifreeze?

[CharlesDella]

Antifreeze principle is: engine coolant is added with some substances that can lower the freezing point of water as antifreeze agents, to keep the cooling system from freezing in cold weather. Automotive antifreeze is also called antifreeze or non-freezing liquid, and its full name should be automotive antifreeze coolant, meaning coolant with antifreeze function, to enable the car to continue to be used in low winter temperatures. There are many types of automotive antifreeze agents, such as calcium chloride in inorganic substances, methanol, ethanol, ethylene glycol, glycerin, lubricating oil in organic substances, and common sugar, honey in daily life, etc., which can all be used as the mother liquor of antifreeze. After adding an appropriate amount of pure soft water, it can become antifreeze in the general sense.