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This is a list of refrigerants, sorted by their ASHRAE-designated numbers, ... HCFC: R-22: Chlorodifluoromethane: CHClF 2: 75-45-6: 12.0 [3] [4] 0.055 [4] [16] 1,760 [5]
Chlorodifluoromethane or difluoromonochloromethane is a hydrochlorofluorocarbon (HCFC). This colorless gas is better known as HCFC-22, or R-22, or CHClF 2. It was commonly used as a propellant and refrigerant.
This refrigerant is intended as a replacement for R-22. R-22 production will be phased out by 2020 as per the Montreal Protocol. [2] Key Characteristics: Colourless and Odourless: R407C is visually clear and does not emit a noticeable smell. Non-Flammable: Safe to use under normal operating conditions due to its non-flammable nature. [3]
R-22 HCFC-22: CHClF 2: Chlorodifluoromethane: 5280: 1760: Being phased out: A widely used hydrochlorofluorocarbon (HCFC) and powerful greenhouse gas with a GWP equal to 1810. Worldwide production of R-22 in 2008 was about 800 Gg per year, up from about 450 Gg per year in 1998. R-438A (MO-99) is a R-22 replacement. [71] R-123 HCFC-123 CHCl 2 CF 3
The phase-down mandated by the AIM Act will lead to R-410A's replacement by other refrigerants beginning in 2022. Alternative refrigerants are available, including hydrofluoroolefins , R-454B (a zeotropic blend of R-32 and R-1234yf ), hydrocarbons (such as propane R-290 and isobutane R-600A ), and even carbon dioxide ( R-744 , GWP = 1).
Chlorodifluoromethane (R-22 or HCFC-22), a type of Freon. [9] [10] Dichlorodifluoromethane (R-12 or CFC-12), the most commonly used Freon brand refrigerant prior to its ban in many countries in 1996 and total ban in 2010. 1,1,1,2-Tetrafluoroethane (R-134a or HFC-134a), one of the main replacements for the formerly widespread R-12.
R-407A was developed as a close match to R-22's capacities and flow rates, making it well suited as an energy efficient retrofit for R-22 in medium and low temperature refrigeration systems for supermarket and food storage applications, but not for air conditioning systems or those with flooded evaporators. [2] It must be used with synthetic ...
This refrigerant was designed as a drop-in replacement for dichlorodifluoromethane (R-12) which is compatible with the typical mineral oil lubricants used in R-12 systems. Since it is a zeotropic mixture , it has a range of boiling points which may increase the effectiveness of the heat transfer elements in refrigeration equipment.
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