Category: Refrigerants

Methyl Chloride Refrigerants

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Methyl chloride (CHP) has a boiling point of ?10.6°F (?23.3°C). It also has heat of vaporization at boiling point (at l atm) of 177.8 Btu/lb. It is a good refrigerant. However, because it will burn under some conditions some cities will not allow it to be used. It is easy to liquefy and has a […]

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Sulfur Dioxide Refrigerants

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Sulfur dioxide (SO2) is a colorless gas or liquid. It is toxic, with a very pungent odor. When sulfur is burned in air, sulfur dioxide is formed. When sulfur dioxide combines with water it produces sulfuric and sulfurous acids. These acids are very corrosive to metal. They have an adverse effect on most materials. Sulfur […]

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Classification of Refrigerants

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Classification of Refrigerants

Refrigerants are classified according to their manner of absorption or extraction of heat from substances to be refrigerated. The classifications can be broken down into class 1, class 2, and class 3. Class 1 refrigerants are used in the standard compression type of refrigeration systems. Class 2 refrigerants are used as immediate cooling agents between […]

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HVAC Refrigerants

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Refrigerants are used in the process of refrigeration. Refrigeration is a process whereby heat is removed from a substance or a space. A refrigerant is a substance that picks up latent heat when the substance evaporates from a liquid to a gas. This is done at a low temperature and pressure. A refrigerant expels latent […]

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