Common
Coolant
Substance used to reduce or regulate the temperature of a system
Coolant
A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, and low cost, is non-toxic and chemically inert, and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator. While the term coolant is commonly used in automotive and HVAC applications, in industrial processing heat-transfer fluid is one technical term more often used in high-temperature as well as low-temperature manufacturing applications. The term also covers cutting fluids. Cutting fluids are broadly divided into neat (straight) oils, which are used undiluted, and water-miscible fluids, which are diluted with water before use. Among the water-miscible types, soluble oils and semisynthetic fluids use emulsifiers to disperse oil in water, while synthetic coolants contain no petroleum oil. This coolant can either keep its phase, staying liquid...
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