What color is the antifreeze, and there are several colors of the antifreeze

I think everyone is familiar with antifreeze, every car needs to add antifreeze, as the name suggests, antifreeze is antifreeze, to ensure that the car can still be used normally in cold climates, especially friends in the north. In fact, antifreeze is a kind of coolant with special additives. Therefore, antifreeze is also called coolant, which also has a cooling effect.For some friends who have never seen antifreeze, I don’t knowWhat color of antifreeze, Don’t worry, you will know after reading the content below.

Antifreeze generally has three colors, Antifreeze has ethylene glycol, propylene glycol and glycerin type. At present, the antifreeze on the market is mainly based on ethylene glycol. The boiling point of ethylene glycol is high and the freezing point is low. The antifreeze is also added with a coloring agent, and fluorescein is commonly used. , Added to ethylene glycol, the color isgreen.In addition, the color of rhodamine B dye added to ethylene glycol isPink, There are also those with methine blue dye added to ethylene glycolThe color isblue.

The main function of antifreeze is to protect the normal operation of the engine. It circulates in the engine cooling system and plays the role of antifreeze, cooling, anti-scaling, etc., and most of the colors of antifreeze are usedInformed that it is toxic, different from other liquids, so that it is easy to observe whether it is leaking, and avoid confusion.