{
  "ALIASES": [
    "HFE-143m", 
    "HFE143M", 
    "HFE-143M", 
    "RE143A", 
    "RE143a"
  ], 
  "ANCILLARIES": {
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        -10235.405985982265, 
        107.36956665002454, 
        -0.6113000082928615, 
        0.002077514974267441, 
        -4.226949314169069e-06, 
        4.768147406433093e-09, 
        -2.3018117042900677e-12
      ], 
      "B": [
        1, 
        -0.0026318881287905292
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 165.023019710703, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
    }, 
    "hLV": {
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        -1148453.7427520894, 
        28209.39628896916, 
        -290.163505907221, 
        1.6466742810935608, 
        -0.005589231150567446, 
        1.1353519295971422e-05, 
        -1.2783541183853692e-08, 
        6.158126400339369e-12
      ], 
      "B": [
        1, 
        -0.0026309439021698013
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      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 412.1653356048764, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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    "pL": {
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      "Tmax": 377.9209999999992, 
      "Tmin": 240.0, 
      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.030182989158467066, 
      "n": [
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        -0.9977558588652533, 
        -5.540224394968286, 
        -0.31084593640695357, 
        -3.79461617284861, 
        4.758257690910974
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      "reducing_value": 3635000.0, 
      "t": [
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        0.898, 
        0.985, 
        2.475, 
        3.907, 
        9.142
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      "type": "pL", 
      "using_tau_r": true
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    "pV": {
      "T_r": 377.921, 
      "Tmax": 377.9209999999992, 
      "Tmin": 240.0, 
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.2108735480769508, 
      "n": [
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        -0.6242585291517511, 
        1.2296456508104718, 
        -7.2843842540973975, 
        -31.628487819979497, 
        535.477430612564
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      "reducing_value": 3635000.0, 
      "t": [
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        0.523, 
        0.651, 
        0.961, 
        5.664, 
        9.521
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      "type": "pV", 
      "using_tau_r": true
    }, 
    "rhoL": {
      "T_r": 377.921, 
      "Tmax": 377.9209999999992, 
      "Tmin": 240.0, 
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.6804963381005225, 
      "n": [
        0.335183935046017, 
        2.07566462116046, 
        112192.72531570093, 
        -126522.90717969429, 
        891195.9272871091, 
        -5911298.633294987
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      "reducing_value": 4648.140744, 
      "t": [
        0.367, 
        0.39, 
        7.315, 
        7.402, 
        12.039, 
        14.608
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      "type": "rhoLnoexp", 
      "using_tau_r": false
    }, 
    "rhoV": {
      "T_r": 377.921, 
      "Tmax": 377.9209999999992, 
      "Tmin": 240.0, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.9909294019332271, 
      "n": [
        -4.266199685018297, 
        14.465655413880627, 
        -17.190892941379516, 
        61.40354293923954, 
        -19753752.67110767, 
        257263004.36371782
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      "reducing_value": 4648.140744, 
      "t": [
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        1.102, 
        6.066, 
        17.199, 
        19.918
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      "type": "rhoV", 
      "using_tau_r": true
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    "sL": {
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        704.1714729254874, 
        -22.181734765951052, 
        0.24527299148503207, 
        -0.0014291064159868676, 
        4.914630566237717e-06, 
        -1.0070298529191258e-08, 
        1.1413663372434918e-11, 
        -5.5280428974825e-15
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      "B": [
        1, 
        -0.0026321525541792103
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      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 0.43115607181984217, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }, 
    "sLV": {
      "A": [
        -2113.8293534270024, 
        58.921999380138416, 
        -0.6419590791320391, 
        0.0037570391718597163, 
        -1.2992736267605167e-05, 
        2.672346148163148e-08, 
        -3.035628977817293e-11, 
        1.4717683768570267e-14
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      "B": [
        1, 
        -0.002631181097289017
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      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 1.0793800646766871, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }
  }, 
  "CAS": "421-14-7", 
  "EOS": [
    {
      "BibTeX_CP0": "", 
      "BibTeX_EOS": "Akasaka-IJR-2012", 
      "STATES": {
        "hs_anchor": {
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          "T_units": "K", 
          "hmolar": 45804.980982478475, 
          "hmolar_units": "J/mol", 
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          "p_units": "Pa", 
          "rhomolar": 4183.3266696, 
          "rhomolar_units": "mol/m^3", 
          "smolar": 172.32643268128248, 
          "smolar_units": "J/mol/K"
        }, 
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          "p": 3635000, 
          "p_units": "Pa", 
          "rhomolar": 4648.140744, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_liquid": {
          "T": 240.0, 
          "T_units": "K", 
          "p": 65.35939300696849, 
          "p_units": "Pa", 
          "rhomolar": 12615.354950558858, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_vapor": {
          "T": 240.0, 
          "T_units": "K", 
          "p": 65.35939300696849, 
          "p_units": "Pa", 
          "rhomolar": 34.01804620551361, 
          "rhomolar_units": "mol/m^3"
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      "T_max": 4220, 
      "T_max_units": "K", 
      "Ttriple": 240, 
      "Ttriple_units": "K", 
      "accentric": 0.2888713656700324, 
      "accentric_units": "-", 
      "alpha0": [
        {
          "a1": -17.97705674077087, 
          "a2": 12.92642879298097, 
          "type": "IdealGasHelmholtzLead"
        }, 
        {
          "a": -1, 
          "type": "IdealGasHelmholtzLogTau"
        }, 
        {
          "T0": 273.15, 
          "Tc": 377.921, 
          "cp_over_R": 2.449945107759098, 
          "type": "IdealGasHelmholtzCP0Constant"
        }, 
        {
          "T0": 273.15, 
          "Tc": 377.921, 
          "c": [
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            -2.345308276941699e-05, 
            5.592658198860973e-09
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            2, 
            3
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          "type": "IdealGasHelmholtzCP0PolyT"
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        {
          "a1": 7.64964970449937e-05, 
          "a2": -8.0498560479886e-05, 
          "reference": "IIR", 
          "type": "IdealGasHelmholtzEnthalpyEntropyOffset"
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      "alphar": [
        {
          "d": [
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            1, 
            2, 
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            1, 
            3, 
            5, 
            7, 
            1, 
            2, 
            2, 
            3, 
            4, 
            2, 
            3, 
            5
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          "l": [
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            1, 
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            2, 
            2, 
            2, 
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          "n": [
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          "t": [
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            1.19, 
            6.58, 
            6.73, 
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            7.31, 
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            10.5
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          "type": "ResidualHelmholtzPower"
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      "gas_constant": 8.314472, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.10004, 
      "molar_mass_units": "kg/mol", 
      "p_max": 7200000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
    }
  ], 
  "NAME": "HFE143m", 
  "REFPROP_NAME": "RE143A", 
  "STATES": {
    "critical": {
      "T": 377.921, 
      "T_units": "K", 
      "p": 3635000.0, 
      "p_units": "Pa", 
      "rhomolar": 4648.140744, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_liquid": {
      "T": 240.0, 
      "T_units": "K", 
      "p": 65.35939300696849, 
      "p_units": "Pa", 
      "rhomolar": 12615.354950558858, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_vapor": {
      "T": 240.0, 
      "T_units": "K", 
      "p": 65.35939300696849, 
      "p_units": "Pa", 
      "rhomolar": 34.01804620551361, 
      "rhomolar_units": "mol/m^3"
    }
  }
}