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What is the boiling point of antifreeze?

1 Answers

JuneRose

07/29/25 10:28am

When the ratio of antifreeze to water is 40:60, the boiling point of the coolant is 106 degrees Celsius. Antifreeze is a coolant containing special additives, mainly used in liquid-cooled engine cooling systems. Antifreeze is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It has excellent properties such as preventing freezing in winter, preventing boiling in summer, and protecting against scale and corrosion year-round. Chemical composition: Currently, over 95% of antifreeze used domestically and internationally is ethylene glycol-based water-type antifreeze. Compared to tap water, ethylene glycol's most notable characteristic is its antifreeze capability, whereas water cannot prevent freezing. Additionally, ethylene glycol has a high boiling point, low volatility, moderate viscosity with minimal temperature variation, and good thermal stability. Therefore, ethylene glycol-based antifreeze is an ideal coolant. Do not mix different types of antifreeze. Different types of antifreeze have varying freezing points due to their different compositions, so the antifreeze should be selected based on the temperature conditions of the vehicle's operating environment. Generally, the freezing point of the antifreeze should be 10-15 degrees Celsius lower than the local minimum temperature to prevent the antifreeze from losing its antifreeze function. Do not dilute with water. Avoid mixing antifreeze with tap water. Antifreeze diluted with tap water not only increases the freezing point but also gradually forms sediment due to impurities in the tap water, ultimately affecting the cooling system's performance. Do not directly add concentrated antifreeze. The concentration of ethylene glycol in antifreeze is not the higher the better. Directly adding high-purity concentrated antifreeze not only fails to meet the engine cooling system's requirements for antifreeze but can also lead to unexpected issues such as antifreeze deterioration, increased low-temperature viscosity, and engine overheating. Therefore, when using concentrated antifreeze, it must be mixed according to the instructions, and direct use is prohibited.

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