{
  "ALIASES": [], 
  "ANCILLARIES": {
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        4.794606730936491e-11
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        -0.0022083830937101533
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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": 182.62449827785167, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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        8.041428213100964e-08, 
        -5.511589292959358e-11
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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": 354.52557006528696, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
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      "Tmax": 301.8799999999995, 
      "Tmin": 98.15000000000002, 
      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
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        -6159.322602726868
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      "reducing_value": 3879000.0, 
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        17.588
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      "type": "pL", 
      "using_tau_r": true
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      "Tmax": 301.8799999999995, 
      "Tmin": 98.15000000000002, 
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.1260695838490422, 
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        -0.2576981218074055, 
        -6.198713074425052, 
        4.554615222226936, 
        -425.4870614799572
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      "reducing_value": 3879000.0, 
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        1.124, 
        1.806, 
        5.029, 
        6.501, 
        18.846
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      "type": "pV", 
      "using_tau_r": true
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      "Tmax": 301.8799999999995, 
      "Tmin": 98.15000000000002, 
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 2.5665972823225247, 
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        87.64846842137001, 
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      "type": "rhoLnoexp", 
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      "Tmax": 301.8799999999995, 
      "Tmin": 98.15000000000002, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 3.322780247833268, 
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      "type": "rhoV", 
      "using_tau_r": true
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        -0.0022083830717266498
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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": 2.440705094880741, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
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        4.715607811982909, 
        -0.03871789860728168, 
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        -5.856672451773673e-13
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        -0.002208383076892481
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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": 2.776677454254809, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
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    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2012", 
      "Tc": 302, 
      "a": [
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      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", 
      "n": [
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  "CAS": "75-72-9", 
  "ENVIRONMENTAL": {
    "ASHRAE34": "A1", 
    "FH": -1, 
    "GWP100": 14400.0, 
    "GWP20": 10800.0, 
    "GWP500": 16400.0, 
    "HH": -1, 
    "Name": "R13", 
    "ODP": -1.0, 
    "PH": -1
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      "BibTeX_CP0": "Platzer-BOOK-1990", 
      "BibTeX_EOS": "Platzer-BOOK-1990", 
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          "rhomolar": 5013.882, 
          "rhomolar_units": "mol/m^3", 
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          "p": 3879000, 
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          "rhomolar": 5570.98, 
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        "sat_min_liquid": {
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          "p": 0.0009070389769883204, 
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          "rhomolar": 17728.463741136216, 
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        "sat_min_vapor": {
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          "rhomolar": 0.001111476996623622, 
          "rhomolar_units": "mol/m^3"
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      "T_max": 450, 
      "T_max_units": "K", 
      "Ttriple": 92, 
      "Ttriple_units": "K", 
      "accentric": 0.174586327798, 
      "accentric_units": "-", 
      "alpha0": [
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          "a1": 0, 
          "a2": 0, 
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        {
          "a": -1, 
          "type": "IdealGasHelmholtzLogTau"
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        {
          "T0": 298.15, 
          "Tc": 301.88, 
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            -8.5810657e-08, 
            6.3199171e-11
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          "t": [
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          "type": "IdealGasHelmholtzCP0PolyT"
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        {
          "a1": -17.2649115260318, 
          "a2": 13.7187307950669, 
          "reference": "IIR", 
          "type": "IdealGasHelmholtzEnthalpyEntropyOffset"
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          "type": "ResidualHelmholtzPower"
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        {
          "d": [
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          "g": [
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          "l": [
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          "n": [
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          "t": [
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          "type": "ResidualHelmholtzExponential"
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      "gas_constant": 8.31451, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.104459, 
      "molar_mass_units": "kg/mol", 
      "p_max": 50000000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
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  ], 
  "NAME": "R13", 
  "REFPROP_NAME": "R13", 
  "STATES": {
    "critical": {
      "T": 301.88, 
      "T_units": "K", 
      "p": 3879000.0, 
      "p_units": "Pa", 
      "rhomolar": 5580.0, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_liquid": {}, 
    "triple_vapor": {}
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}