{
  "ANCILLARIES": {
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        280.58777538383487,
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        -0.005748108050935333,
        2.330377041868759e-05,
        -5.232598817569962e-08,
        6.142566392916227e-11,
        -3.0080059554031395e-14
      ],
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        1,
        -0.0021084032742589094
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      "Tmax": 469.6,
      "Tmin": 143.47,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 412.74441656838644,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
    },
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      "A": [
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        -89.8594742876895,
        -1.0875408200167276,
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        -4.129942050678408e-05,
        9.454236859411337e-08,
        -1.1494304982937444e-10,
        5.86920443533605e-14
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        1,
        -0.002104268667562365
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      "Tmax": 469.6,
      "Tmin": 143.47,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 967.4624259796101,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
    },
    "melting_line": {
      "BibTeX": "Reeves-JCP-1964",
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      "_note": "Modified coefficients to make minimum state agree with triple point",
      "parts": [
        {
          "T_0": 143.47,
          "T_max": 156.2,
          "T_min": 143.47,
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      "type": "Simon"
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      "T_r": 469.7,
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      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
      "max_abserror_percentage": 0.029330284037554222,
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        -6.3246,
        5.429,
        -2.821
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        11.0
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      "type": "pV",
      "using_tau_r": true
    },
    "rhoL": {
      "T_r": 469.7,
      "Tmax": 469.7,
      "Tmin": 143.47,
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))",
      "max_abserror_percentage": 3.114298806470317,
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        8.517,
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        3.3029,
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      "reducing_value": 3210,
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        2.24,
        17.5
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      "type": "rhoLnoexp",
      "using_tau_r": false
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      "T_r": 469.7,
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      "Tmin": 143.47,
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))",
      "max_abserror_percentage": 3.2828728664463958,
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      "type": "rhoV",
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      "Tmax": 469.6,
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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": 0.9830629680041199,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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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",
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      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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        -0.03437
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      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)",
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    {
      "BibTeX_CP0": "",
      "BibTeX_EOS": "Thol-FPE-2019-alkanes-pentane",
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        "sat_min_liquid": {
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          "smolar": -43.698038848504,
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        "sat_min_vapor": {
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          "hmolar": 9190.106333658878,
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      "Ttriple": 143.47,
      "Ttriple_units": "K",
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          "a1": 8.509252832282648,
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        {
          "a": 3,
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          "type": "ResidualHelmholtzPower"
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        {
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          "type": "ResidualHelmholtzGaussian"
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      "gas_constant": 8.3144598,
      "gas_constant_units": "J/mol/K",
      "molar_mass": 0.07214878,
      "molar_mass_units": "kg/mol",
      "p_max": 780000000.0,
      "p_max_units": "Pa",
      "pseudo_pure": false
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    {
      "BibTeX_CP0": "Jaeschke-IJT-1995",
      "BibTeX_EOS": "Span-IJT-2003B",
      "STATES": {
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        "reducing": {
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          "hmolar": 37561.10567308114,
          "hmolar_units": "J/mol",
          "p": 3370000,
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          "rhomolar": 3215.577588422147,
          "rhomolar_units": "mol/m^3",
          "smolar": 93.56559800555729,
          "smolar_units": "J/mol/K"
        },
        "sat_min_liquid": {
          "T": 143.47,
          "T_units": "K",
          "hmolar": -25091.537148819258,
          "hmolar_units": "J/mol",
          "p": 0.07632218449133073,
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          "rhomolar_units": "mol/m^3",
          "smolar": -114.87359084322038,
          "smolar_units": "J/mol/K"
        },
        "sat_min_vapor": {
          "T": 143.47,
          "T_units": "K",
          "hmolar": 9535.953964461274,
          "hmolar_units": "J/mol",
          "p": 0.07632218449133073,
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          "rhomolar": 6.398134604459582e-05,
          "rhomolar_units": "mol/m^3",
          "smolar": 126.48342412292618,
          "smolar_units": "J/mol/K"
        }
      },
      "T_max": 600,
      "T_max_units": "K",
      "Ttriple": 143.47,
      "Ttriple_units": "K",
      "acentric": 0.251,
      "acentric_units": "-",
      "alpha0": [
        {
          "a1": -1.548185641277708,
          "a2": 0,
          "type": "IdealGasHelmholtzLead"
        },
        {
          "a": -1,
          "type": "IdealGasHelmholtzLogTau"
        },
        {
          "T0": 298,
          "Tc": 469.7,
          "c": [
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            178.67,
            21.836,
            840.538
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          "type": "IdealGasHelmholtzCP0AlyLee"
        },
        {
          "T0": 298,
          "Tc": 469.7,
          "c": [
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            1774.25,
            0,
            0
          ],
          "type": "IdealGasHelmholtzCP0AlyLee"
        },
        {
          "a1": 4.12081292405308,
          "a2": 3.14199957169349,
          "reference": "NBP",
          "type": "IdealGasHelmholtzEnthalpyEntropyOffset"
        }
      ],
      "alphar": [
        {
          "d": [
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            5,
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            3,
            4
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          "l": [
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          "n": [
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          "t": [
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          "type": "ResidualHelmholtzPower"
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      ],
      "critical_region_splines": {
        "T_max": 469.70000000000005,
        "T_min": 469.36685791273345,
        "_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": [
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        "cV": [
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        "rhomolar_max": 3750.9260751689894,
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      "gas_constant": 8.31451,
      "gas_constant_units": "J/mol/K",
      "molar_mass": 0.07214878,
      "molar_mass_units": "kg/mol",
      "p_max": 69000000,
      "p_max_units": "Pa",
      "pseudo_pure": false
    }
  ],
  "INFO": {
    "2DPNG_URL": "http://www.chemspider.com/ImagesHandler.ashx?id=7712",
    "ALIASES": [
      "nPentane",
      "Pentane",
      "PENTANE",
      "N-PENTANE",
      "R601",
      "NC5H12",
      "n-C5H12"
    ],
    "CAS": "109-66-0",
    "CHEMSPIDER_ID": 7712,
    "ENVIRONMENTAL": {
      "ASHRAE34": "UNKNOWN",
      "FH": 4,
      "GWP100": -1.0,
      "GWP20": -1.0,
      "GWP500": -1.0,
      "HH": 2,
      "Name": "n-Pentane",
      "ODP": -1.0,
      "PH": 0
    },
    "FORMULA": "C_{5}H_{12}",
    "INCHI_KEY": "OFBQJSOFQDEBGM-UHFFFAOYSA-N",
    "INCHI_STRING": "InChI=1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3",
    "NAME": "n-Pentane",
    "REFPROP_NAME": "PENTANE",
    "SMILES": "CCCCC"
  },
  "STATES": {
    "critical": {
      "T": 469.70000000000005,
      "T_units": "K",
      "hmolar": 37274.85222078972,
      "hmolar_units": "J/mol",
      "p": 3367518.9947363394,
      "p_units": "Pa",
      "rhomolar": 3215.5775884221466,
      "rhomolar_units": "mol/m^3",
      "smolar": 164.208854577162,
      "smolar_units": "J/mol/K"
    },
    "triple_liquid": {
      "T": 143.47,
      "T_units": "K",
      "hmolar": -25261.03093527625,
      "hmolar_units": "J/mol",
      "p": 0.07802807327356376,
      "p_units": "Pa",
      "rhomolar": 10584.356627782587,
      "rhomolar_units": "mol/m^3",
      "smolar": -43.698038848504,
      "smolar_units": "J/mol/K"
    },
    "triple_vapor": {
      "T": 143.47,
      "T_units": "K",
      "hmolar": 9190.106333658878,
      "hmolar_units": "J/mol",
      "p": 0.07802807327356376,
      "p_units": "Pa",
      "rhomolar": 6.541166380079081e-05,
      "rhomolar_units": "mol/m^3",
      "smolar": 196.42977371813126,
      "smolar_units": "J/mol/K"
    }
  },
  "TRANSPORT": {
    "conductivity": {
      "BibTeX": "Vassiliou-JPCRD-2015-pentanes",
      "critical": {
        "GAMMA": 0.058,
        "R0": 1.02,
        "gamma": 1.239,
        "qD": 1497005988.0239522,
        "type": "simplified_Olchowy_Sengers",
        "zeta0": 2.27e-10
      },
      "dilute": {
        "A": [
          -0.00396685,
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          0.00511554,
          -0.108585,
          0.179573,
          0.0392128
        ],
        "B": [
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          -5.76265,
          6.77885,
          -0.59135,
          1
        ],
        "T_reducing": 469.7,
        "T_reducing_units": "K",
        "m": [
          0,
          1,
          2,
          3,
          4
        ],
        "n": [
          0,
          1,
          2,
          3,
          4,
          5
        ],
        "type": "ratio_of_polynomials"
      },
      "residual": {
        "B": [
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          0.00797696,
          0.117655,
          -0.0785888,
          -0.133101,
          0.0916089,
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          -0.0370431,
          -0.0068793,
          0.0050962
        ],
        "T_reducing": 469.7,
        "T_reducing_units": "K",
        "d": [
          1,
          1,
          2,
          2,
          3,
          3,
          4,
          4,
          5,
          5
        ],
        "rhomass_reducing": 232.0,
        "rhomass_reducing_units": "kg/m^3",
        "t": [
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          -1,
          0,
          -1,
          0,
          -1,
          0,
          -1,
          0,
          -1
        ],
        "type": "polynomial"
      }
    },
    "viscosity": {
      "BibTeX": "QuinonesCisneros-JPCB-2006",
      "dilute": {
        "T_reducing": 469.7,
        "a": [
          1.76805e-05,
          -5.56942e-05,
          4.87177e-05,
          0.0
        ],
        "t": [
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          0.5,
          0.75
        ],
        "type": "powers_of_Tr"
      },
      "epsilon_over_k": 341.1,
      "epsilon_over_k_units": "K",
      "higher_order": {
        "Aa": [
          1.08193e-08,
          -4.71699e-08,
          0
        ],
        "Aaa": [
          -2.10025e-13,
          -1.56583e-12,
          0.0
        ],
        "Adrdr": [
          1.98521e-11,
          2.05972e-12,
          0.0
        ],
        "Ai": [
          -5.08307e-08,
          -1.07e-08,
          0.0
        ],
        "Aii": [
          -1.18487e-10,
          1.69571e-10,
          0.0
        ],
        "Ar": [
          1.21502e-07,
          -9.84766e-08,
          0.0
        ],
        "Na": 1,
        "Naa": 3,
        "Nii": 3,
        "Nr": 1,
        "Nrr": 3,
        "T_reduce": 469.7,
        "_note": "Typo in paper for Aa[1], taking the value from REFPROP 9.1 fluid file.  Also, sign of Ai[0] seems backwards, using value from REFPROP 9.1",
        "c1": 1,
        "c2": 1,
        "type": "friction_theory"
      },
      "sigma_eta": 5.784e-10,
      "sigma_eta_units": "m"
    }
  }
}