{
  "ALIASES": [
    "propyne", 
    "PROPYNE"
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      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
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      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
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      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
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      "Tmax": 402.37999999999914, 
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      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
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      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
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      "type": "rhoLnoexp", 
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      "Tmin": 273.0, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
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      "max_abs_error_units": "J/mol/K", 
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      "type": "rational_polynomial"
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      "BibTeX": "Mulero-JPCRD-2012", 
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      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", 
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  "CAS": "74-99-7", 
  "ENVIRONMENTAL": {
    "ASHRAE34": "UNKNOWN", 
    "FH": 4, 
    "GWP100": -1.0, 
    "GWP20": -1.0, 
    "GWP500": -1.0, 
    "HH": 1, 
    "Name": "Propyne", 
    "ODP": -1.0, 
    "PH": 1
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    {
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      "BibTeX_EOS": "Polt-CT-1992", 
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      "T_max": 474, 
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      "Ttriple": 170.5, 
      "Ttriple_units": "K", 
      "accentric": 0.204, 
      "accentric_units": "-", 
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        {
          "a": -1, 
          "type": "IdealGasHelmholtzLogTau"
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        {
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          "type": "ResidualHelmholtzPower"
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        {
          "d": [
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          "g": [
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          "type": "ResidualHelmholtzExponential"
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      "gas_constant": 8.3143, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.04006000000000001, 
      "molar_mass_units": "kg/mol", 
      "p_max": 31800000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
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  ], 
  "NAME": "Propyne", 
  "REFPROP_NAME": "PROPYNE", 
  "STATES": {
    "critical": {
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      "T_units": "K", 
      "p": 5626000.0, 
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      "rhomolar": 6113.33, 
      "rhomolar_units": "mol/m^3"
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    "triple_liquid": {
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    "triple_vapor": {
      "T": 273.0, 
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      "hmolar": 27840.96199279927, 
      "hmolar_units": "J/mol", 
      "p": 263566.9059787229, 
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      "rhomolar_units": "mol/m^3", 
      "smolar": 112.69388105369914, 
      "smolar_units": "J/mol/K"
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}