{
  "ANCILLARIES": {
    "hL": {
      "A": [
        -51568.90369470422,
        51.45460873850454,
        2.752891215987856,
        -0.023136325634748357,
        0.0001024093874313081,
        -2.651600844294666e-07,
        3.7318952554948676e-10,
        -2.2192834718686294e-13
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      "B": [
        1,
        -0.002649138504741595
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      "Tmax": 374.10999999999996,
      "Tmin": 169.85,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 241.01982342201154,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
    },
    "hLV": {
      "A": [
        -9080.372629393934,
        1264.9411498949696,
        -18.160791264693714,
        0.12781381615470477,
        -0.0005233045305445569,
        1.2618550621868711e-06,
        -1.6671845024652724e-09,
        9.355397808799877e-13
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      "B": [
        1,
        -0.0026524398429957725
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      "Tmax": 374.10999999999996,
      "Tmin": 169.85,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 396.7437827981382,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
    },
    "pS": {
      "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
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      "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
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      "reducing_value": 5017.053,
      "t": [
        0.476,
        0.966,
        1.321,
        8.491,
        13.463,
        13.463
      ],
      "type": "rhoV",
      "using_tau_r": true
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    "sL": {
      "A": [
        -399.18080880127,
        4.394242074386063,
        -0.026752383200918127,
        0.00010896444505629128,
        -2.7767304379760916e-07,
        3.975007098367782e-10,
        -2.560198688847629e-13,
        2.1500752964678462e-17
      ],
      "B": [
        1,
        -0.00264854906532604
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      "Tmax": 374.10999999999996,
      "Tmin": 169.85,
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
      "max_abs_error": 0.655700714607379,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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    "sLV": {
      "A": [
        1003.811274025249,
        -14.946000739318807,
        0.10573848746936429,
        -0.0004311147107160923,
        1.023212939627796e-06,
        -1.29600415647492e-09,
        6.223668423450527e-13,
        1.0711102848219976e-16
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      "B": [
        1,
        -0.002651900886500984
      ],
      "Tmax": 374.10999999999996,
      "Tmin": 169.85,
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
      "max_abs_error": 1.0929973063164589,
      "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
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    }
  },
  "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"
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        "reducing": {
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          "T_units": "K",
          "hmolar": 39803.894110114015,
          "hmolar_units": "J/mol",
          "p": 4059280,
          "p_units": "Pa",
          "rhomolar": 4978.830171000001,
          "rhomolar_units": "mol/m^3",
          "smolar": 159.51273279856932,
          "smolar_units": "J/mol/K"
        },
        "sat_min_liquid": {
          "T": 169.85,
          "T_units": "K",
          "hmolar": 7290.6959446709525,
          "hmolar_units": "J/mol",
          "p": 389.56378856198955,
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          "rhomolar": 15594.200379934837,
          "rhomolar_units": "mol/m^3",
          "smolar": 42.10013943778218,
          "smolar_units": "J/mol/K"
        },
        "sat_min_vapor": {
          "T": 169.85,
          "T_units": "K",
          "hmolar": 34174.80559991693,
          "hmolar_units": "J/mol",
          "p": 389.56379159193614,
          "p_units": "Pa",
          "rhomolar": 0.27611228212880073,
          "rhomolar_units": "mol/m^3",
          "smolar": 200.38162100644377,
          "smolar_units": "J/mol/K"
        }
      },
      "T_max": 455,
      "T_max_units": "K",
      "Ttriple": 169.85,
      "Ttriple_units": "K",
      "acentric": 0.32684,
      "acentric_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": [
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            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
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          "t": [
            -0.5,
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            0,
            0,
            1.5,
            1.5,
            2,
            2,
            1,
            3,
            5,
            1,
            5,
            5,
            6,
            10,
            10,
            10,
            18,
            22,
            50
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          "type": "ResidualHelmholtzPower"
        }
      ],
      "critical_region_splines": {
        "T_max": 374.21,
        "T_min": 371.5679279482294,
        "_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": [
          -3.1717554541586117e-10,
          4.637230912601717e-06,
          -0.022579760071531764,
          410.82493256023287
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        "cV": [
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          0.007838404689530362,
          354.54715411858876
        ],
        "rhomolar_max": 6910.28719050292,
        "rhomolar_min": 3177.9848214241374
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      "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
    }
  ],
  "INFO": {
    "2DPNG_URL": "http://www.chemspider.com/ImagesHandler.ashx?id=12577",
    "ALIASES": [
      "R134A"
    ],
    "CAS": "811-97-2",
    "CHEMSPIDER_ID": 12577,
    "ENVIRONMENTAL": {
      "ASHRAE34": "A1",
      "FH": 1,
      "GWP100": 1430.0,
      "GWP20": 3830.0,
      "GWP500": 435.0,
      "HH": 1,
      "Name": "R134a",
      "ODP": -1.0,
      "PH": 0
    },
    "FORMULA": "C_{2}F_{4}H_{2}",
    "INCHI_KEY": "LVGUZGTVOIAKKC-UHFFFAOYSA-N",
    "INCHI_STRING": "InChI=1S/C2H2F4/c3-1-2(4,5)6/h1H2",
    "NAME": "R134a",
    "REFPROP_NAME": "R134A",
    "SMILES": "C(C(F)(F)F)F"
  },
  "STATES": {
    "critical": {
      "T": 374.21,
      "T_units": "K",
      "hmolar": 39755.632820665705,
      "hmolar_units": "J/mol",
      "p": 4059280.0,
      "p_units": "Pa",
      "rhomolar": 5017.053,
      "rhomolar_units": "mol/m^3",
      "smolar": 159.38409617782034,
      "smolar_units": "J/mol/K"
    },
    "triple_liquid": {
      "T": 169.85,
      "T_units": "K",
      "hmolar": 7290.6959446709525,
      "hmolar_units": "J/mol",
      "p": 389.56378856198955,
      "p_units": "Pa",
      "rhomolar": 15594.200379934837,
      "rhomolar_units": "mol/m^3",
      "smolar": 42.10013943778218,
      "smolar_units": "J/mol/K"
    },
    "triple_vapor": {
      "T": 169.85,
      "T_units": "K",
      "hmolar": 34174.80559991693,
      "hmolar_units": "J/mol",
      "p": 389.56379159193614,
      "p_units": "Pa",
      "rhomolar": 0.27611228212880073,
      "rhomolar_units": "mol/m^3",
      "smolar": 200.38162100644377,
      "smolar_units": "J/mol/K"
    }
  },
  "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,
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          2,
          2,
          2,
          3
        ],
        "d2": [
          0
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        "f": [
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        "g": [
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        "gamma": [
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          0,
          0,
          0,
          0,
          0
        ],
        "h": [
          0
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        "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,
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          2491.6597,
          -787.26086,
          14.085455,
          -0.34664158
        ],
        "t": [
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          -0.75,
          -1.0,
          -1.25,
          -1.5,
          -2.5,
          -5.5
        ],
        "type": "Rainwater-Friend"
      },
      "sigma_eta": 4.68932e-10,
      "sigma_eta_units": "m"
    }
  }
}