Modern refrigerators primarily use HFC-134a (1,1,1,2-Tetrafluoroethane), also known as R-134a, as a refrigerant. While it doesn't deplete the ozone layer, it is a greenhouse gas and is being phased out in favor of more environmentally friendly alternatives. Older refrigerators used R-22, but it was phased out due to its ozone-depleting properties. Some newer refrigerators are also using R-600a (isobutane), which has a lower global warming potential.
Which gas helps in cooling in refrigerators?
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