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ONTOLOGY REPORT - ANNOTATIONS


Term:refrigerant
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Accession:CHEBI:78433 term browser browse the term
Definition:A substance used in a thermodynamic heat pump cycle or refrigeration cycle that undergoes a phase change from a gas to a liquid and back. Refrigerants are used in air-conditioning systems and freezers or refrigerators and are assigned a 'R' number (by ASHRAE - formerly the American Society of Heating, Refrigerating and Air Conditioning Engineers), which is determined systematically according to their molecular structure.
Synonyms:related_synonym: refrigerants
 xref: Wikipedia:Refrigerant


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  CHEBI ontology 19679
    role 19623
      application 19246
        refrigerant 16995
          ammonia + 16565
          butane + 66
          carbon dioxide 20
          chloroform + 91
          chloromethane 2
          dichloromethane 173
          diethyl ether 0
          difluoromethane + 0
          dinitrogen oxide 8
          ethane + 4146
          ethene + 3837
          fluoroform + 6274
          fluoromethane 0
          hexachloroethane 0
          hexafluoroethane 0
          isobutane + 561
          isopentane + 2
          methyl formate 0
          pentane + 212
          propene + 2
          sulfur dioxide 76
          tetrachloromethane 6089
          tetrafluoromethane + 6274
          trichlorofluoromethane 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.