| 41. | This colorless gas is of interest as a refrigerant in air conditioners.
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| 42. | In chemical-speak, these refrigerants are known as CFC-12.
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| 43. | Refrigerant circulates in these coils and changes from a liquid to a gas.
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| 44. | When the refrigerant evaporates, it absorbs the heat from the surrounding air.
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| 45. | Home air-conditioners generally use a different refrigerant, R-22.
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| 46. | Supplies of Freon, long the refrigerant of choice, have been declining.
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| 47. | What refrigerant and retrofit is right for your car and your bank account?
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| 48. | The boiling refrigerant goes to the compressor again, and gets heated again.
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| 49. | It is illegal to vent refrigerant to the air.
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| 50. | However, the use of refrigerant identifiers is uncovering an epidemic of contamination.
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