{
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    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2012", 
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  "CAS": "74-82-8", 
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    "FH": 4, 
    "GWP100": 25.0, 
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      "BibTeX_CP0": "", 
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  "NAME": "Methane", 
  "REFPROP_NAME": "METHANE"
}