{
  "ALIASES": [
    "R134A"
  ], 
  "ANCILLARIES": {
    "hL": {
      "A": [
        -51529.55944985408, 
        50.33864353229947, 
        2.7663766395140725, 
        -0.023225752665323663, 
        0.00010276136869041563, 
        -2.6598290728635957e-07, 
        3.7424760510383004e-10, 
        -2.2250596915286053e-13
      ], 
      "B": [
        1, 
        -0.00264918809216325
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 252.39784198293637, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
    }, 
    "hLV": {
      "A": [
        -4754.471142945848, 
        1141.3456669145435, 
        -16.658811229664057, 
        0.11778319054931755, 
        -0.00048351125451228354, 
        1.1680419844297762e-06, 
        -1.5454547499218421e-09, 
        8.684345855482601e-13
      ], 
      "B": [
        1, 
        -0.0026480942567852117
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 577.732277402524, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
    }, 
    "pL": {
      "T_r": 374.21, 
      "Tmax": 374.20999999999935, 
      "Tmin": 169.85, 
      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.017350580991559728, 
      "n": [
        -7.752261946226358, 
        1.1077288842347188, 
        -3.6878039562081835, 
        11.428865438173393, 
        58.41970100091463, 
        -7.937848917436551
      ], 
      "reducing_value": 4059280.0, 
      "t": [
        0.994, 
        1.193, 
        3.431, 
        11.757, 
        16.373, 
        8.838
      ], 
      "type": "pL", 
      "using_tau_r": true
    }, 
    "pV": {
      "T_r": 374.21, 
      "Tmax": 374.20999999999935, 
      "Tmin": 169.85, 
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.00920528154990663, 
      "n": [
        0.4331478287291047, 
        -9.090302559074352, 
        2.1476074125217703, 
        -1.557687007603464, 
        -3.5020328972698604, 
        14.958442337201044
      ], 
      "reducing_value": 4059280.0, 
      "t": [
        0.845, 
        0.99, 
        1.14, 
        2.651, 
        4.507, 
        17.235
      ], 
      "type": "pV", 
      "using_tau_r": true
    }, 
    "rhoL": {
      "T_r": 374.21, 
      "Tmax": 374.20999999999935, 
      "Tmin": 169.85, 
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 4.694601438771184, 
      "n": [
        18.772731940930015, 
        -51.49939472178225, 
        40.793536440596085, 
        -1481.6500471538966, 
        1600.534434298925, 
        -67338.52423732559
      ], 
      "reducing_value": 5017.053, 
      "t": [
        0.673, 
        0.994, 
        1.257, 
        5.783, 
        5.943, 
        19.94
      ], 
      "type": "rhoLnoexp", 
      "using_tau_r": false
    }, 
    "rhoV": {
      "T_r": 374.21, 
      "Tmax": 374.20999999999935, 
      "Tmin": 169.85, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 2.5443795326392737, 
      "n": [
        -5.147386240766544, 
        5.34618043286371, 
        -7.611015272838434, 
        -28.85436432788653, 
        -9.079306067130748, 
        64.0
      ], 
      "reducing_value": 5017.053, 
      "t": [
        0.476, 
        0.966, 
        1.321, 
        8.491, 
        13.463, 
        13.463
      ], 
      "type": "rhoV", 
      "using_tau_r": true
    }, 
    "sL": {
      "A": [
        -399.07686533095074, 
        4.391304989695765, 
        -0.02671688302927355, 
        0.00010872889126430847, 
        -2.7674555501406144e-07, 
        3.953319072725693e-10, 
        -2.5323022972830746e-13, 
        1.9977491693793718e-17
      ], 
      "B": [
        1, 
        -0.002648599206785997
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 0.686259771424508, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }, 
    "sLV": {
      "A": [
        1015.7440679438349, 
        -15.282436011854726, 
        0.10981502535780535, 
        -0.0004583136790622338, 
        1.1310586460028706e-06, 
        -1.5501591857488956e-09, 
        9.520591431071518e-13, 
        -7.45821300198014e-17
      ], 
      "B": [
        1, 
        -0.0026473697775543756
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 1.5753757588779433, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }, 
    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2012", 
      "Tc": 374.21, 
      "a": [
        0.05801
      ], 
      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", 
      "n": [
        1.241
      ]
    }
  }, 
  "CAS": "811-97-2", 
  "ENVIRONMENTAL": {
    "ASHRAE34": "A1", 
    "FH": 1, 
    "GWP100": 1430.0, 
    "GWP20": 3830.0, 
    "GWP500": 435.0, 
    "HH": 1, 
    "Name": "R134a", 
    "ODP": -1.0, 
    "PH": 0
  }, 
  "EOS": [
    {
      "BibTeX_CP0": "", 
      "BibTeX_EOS": "TillnerRoth-JPCRD-1994", 
      "STATES": {
        "hs_anchor": {
          "T": 411.598, 
          "T_units": "K", 
          "hmolar": 45468.086192270304, 
          "hmolar_units": "J/mol", 
          "p": 6858750.808053112, 
          "p_units": "Pa", 
          "rhomolar": 4480.9471539000015, 
          "rhomolar_units": "mol/m^3", 
          "smolar": 172.44139866136513, 
          "smolar_units": "J/mol/K"
        }, 
        "reducing": {
          "T": 374.18, 
          "T_units": "K", 
          "p": 4059280, 
          "p_units": "Pa", 
          "rhomolar": 4978.830171000001, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_liquid": {
          "T": 169.85, 
          "T_units": "K", 
          "p": 389.56378913655766, 
          "p_units": "Pa", 
          "rhomolar": 15594.20037993484, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_vapor": {
          "T": 169.85, 
          "T_units": "K", 
          "p": 389.56378860748816, 
          "p_units": "Pa", 
          "rhomolar": 0.2761122800115168, 
          "rhomolar_units": "mol/m^3"
        }
      }, 
      "T_max": 455, 
      "T_max_units": "K", 
      "Ttriple": 169.85, 
      "Ttriple_units": "K", 
      "accentric": 0.32684, 
      "accentric_units": "-", 
      "alpha0": [
        {
          "a1": -1.019535, 
          "a2": 9.047135, 
          "type": "IdealGasHelmholtzLead"
        }, 
        {
          "a": -1.629789, 
          "type": "IdealGasHelmholtzLogTau"
        }, 
        {
          "n": [
            -9.723916, 
            -3.92717
          ], 
          "t": [
            -0.5, 
            -0.75
          ], 
          "type": "IdealGasHelmholtzPower"
        }
      ], 
      "alphar": [
        {
          "d": [
            2, 
            1, 
            3, 
            6, 
            6, 
            1, 
            1, 
            2, 
            5, 
            2, 
            2, 
            4, 
            1, 
            4, 
            1, 
            2, 
            4, 
            1, 
            5, 
            3, 
            10
          ], 
          "l": [
            0, 
            0, 
            0, 
            0, 
            0, 
            0, 
            0, 
            0, 
            1, 
            1, 
            1, 
            2, 
            2, 
            2, 
            2, 
            2, 
            2, 
            3, 
            3, 
            3, 
            4
          ], 
          "n": [
            0.05586817, 
            0.498223, 
            0.02458698, 
            0.0008570145, 
            0.0004788584, 
            -1.800808, 
            0.2671641, 
            -0.04781652, 
            0.01423987, 
            0.3324062, 
            -0.007485907, 
            0.0001017263, 
            -0.5184567, 
            -0.08692288, 
            0.2057144, 
            -0.005000457, 
            0.0004603262, 
            -0.003497836, 
            0.006995038, 
            -0.01452184, 
            -0.0001285458
          ], 
          "t": [
            -0.5, 
            0, 
            0, 
            0, 
            1.5, 
            1.5, 
            2, 
            2, 
            1, 
            3, 
            5, 
            1, 
            5, 
            5, 
            6, 
            10, 
            10, 
            10, 
            18, 
            22, 
            50
          ], 
          "type": "ResidualHelmholtzPower"
        }
      ], 
      "critical_region_splines": {
        "T_max": 374.21, 
        "T_min": 373.5716150640238, 
        "_note": "Coefficients for the critical cubic spline.  T = c[0]*rho^3 + c[1]*rho^2 + c[2]*rho + c[3] with rho in mol/m^3 and T in K", 
        "cL": [
          -3.1676460727923154e-10, 
          4.632248820128229e-06, 
          -0.022560800178147874, 
          410.803318485873
        ], 
        "cV": [
          3.734362612529562e-10, 
          -5.680300209122729e-06, 
          0.02879764276811166, 
          325.5497395319938
        ], 
        "rhomolar_max": 6152.557816507652, 
        "rhomolar_min": 3872.298405322532
      }, 
      "gas_constant": 8.314471, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.102032, 
      "molar_mass_units": "kg/mol", 
      "p_max": 70000000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
    }
  ], 
  "NAME": "R134a", 
  "REFPROP_NAME": "R134A", 
  "STATES": {
    "critical": {
      "T": 374.21, 
      "T_units": "K", 
      "p": 4059280.0, 
      "p_units": "Pa", 
      "rhomolar": 5017.053, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_liquid": {
      "T": 169.85, 
      "T_units": "K", 
      "p": 389.56378913655766, 
      "p_units": "Pa", 
      "rhomolar": 15594.20037993484, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_vapor": {
      "T": 169.85, 
      "T_units": "K", 
      "p": 389.56378860748816, 
      "p_units": "Pa", 
      "rhomolar": 0.2761122800115168, 
      "rhomolar_units": "mol/m^3"
    }
  }, 
  "TRANSPORT": {
    "conductivity": {
      "BibTeX": "McLinden-IJR-2000", 
      "critical": {
        "GAMMA": 0.0496, 
        "R0": 1.03, 
        "gamma": 1.239, 
        "qD": 1892020000.0, 
        "type": "simplified_Olchowy_Sengers", 
        "zeta0": 1.94e-10
      }, 
      "dilute": {
        "A": [
          -0.0105248, 
          8.00982e-05
        ], 
        "B": [
          1.0
        ], 
        "T_reducing": 1, 
        "T_reducing_units": "K", 
        "m": [
          0
        ], 
        "n": [
          0, 
          1
        ], 
        "type": "ratio_of_polynomials"
      }, 
      "residual": {
        "B": [
          0.0037740609300000003, 
          0.010534223865, 
          -0.002952794565, 
          0.00128672592
        ], 
        "T_reducing": 1, 
        "T_reducing_units": "K", 
        "_note": "from v4.x : delta = rho/(5.049886*102.032); // Does not use either the reduce.rho value or crit.rho value !!! Or the value listed in Huber, 2003 either", 
        "d": [
          1, 
          2, 
          3, 
          4
        ], 
        "rhomass_reducing": 515.249968352, 
        "rhomass_reducing_units": "kg/m^3", 
        "t": [
          0, 
          0, 
          0, 
          0
        ], 
        "type": "polynomial"
      }
    }, 
    "viscosity": {
      "BibTeX": "Huber-IECR-2003", 
      "dilute": {
        "C": 2.1357e-08, 
        "a": [
          0.355404, 
          -0.464337, 
          0.0257353
        ], 
        "molar_mass": 0.102031, 
        "molar_mass_units": "kg/mol", 
        "t": [
          0, 
          1, 
          2
        ], 
        "type": "collision_integral"
      }, 
      "epsilon_over_k": 299.363, 
      "epsilon_over_k_units": "K", 
      "higher_order": {
        "T_reduce": 374.21, 
        "T_reduce_units": "K", 
        "a": [
          -2.06900719e-05, 
          3.56029549e-07, 
          2.11101816e-06, 
          1.39601415e-05, 
          -4.5643502e-06, 
          -3.51593275e-06
        ], 
        "d1": [
          1, 
          2, 
          2, 
          2, 
          2, 
          3
        ], 
        "d2": [
          0
        ], 
        "f": [
          0.00021476332
        ], 
        "g": [
          3.163695636
        ], 
        "gamma": [
          0, 
          0, 
          0, 
          0, 
          0, 
          0
        ], 
        "h": [
          0
        ], 
        "l": [
          1, 
          1, 
          1, 
          1, 
          1, 
          1
        ], 
        "p": [
          1, 
          -0.0890173375, 
          0.100035295
        ], 
        "q": [
          0, 
          -1, 
          -2
        ], 
        "rhomolar_reduce": 5017.053, 
        "rhomolar_reduce_units": "mol/m^3", 
        "t1": [
          0, 
          6, 
          2, 
          0.5, 
          -2, 
          0
        ], 
        "t2": [
          0
        ], 
        "type": "modified_Batschinski_Hildebrand"
      }, 
      "initial_density": {
        "b": [
          -19.572881, 
          219.73999, 
          -1015.3226, 
          2471.01251, 
          -3375.1717, 
          2491.6597, 
          -787.26086, 
          14.085455, 
          -0.34664158
        ], 
        "t": [
          0, 
          -0.25, 
          -0.5, 
          -0.75, 
          -1.0, 
          -1.25, 
          -1.5, 
          -2.5, 
          -5.5
        ], 
        "type": "Rainwater-Friend"
      }, 
      "sigma_eta": 4.68932e-10, 
      "sigma_eta_units": "m"
    }
  }
}