{
  "ANCILLARIES": {
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      "A": [
        -246119.46072729214,
        -259.5824525367737,
        7.7466602220457625,
        -0.03374381260781217,
        8.34837843851262e-05,
        -1.2471898607314322e-07,
        1.0254734748781992e-10,
        -3.584750583698682e-14
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      "B": [
        1,
        -0.0016948381444915777
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      "Tmax": 586.4,
      "Tmin": 290.25,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 859.2049677024115,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
    },
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      "A": [
        -123675.20507706807,
        3672.274774264113,
        -30.224744777396552,
        0.12774387302911544,
        -0.0003160808006608067,
        4.6266251762349287e-07,
        -3.724733161434862e-10,
        1.2766815097982976e-13
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        1,
        -0.0016900983284927514
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      "Tmax": 586.4,
      "Tmin": 290.25,
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
      "max_abs_error": 1564.3618616496883,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
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      "T_r": 586.5,
      "Tmax": 586.499,
      "Tmin": 290.25,
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
      "max_abserror_percentage": 0.010942245797573857,
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        4.012049466701194,
        -1.0289244610594683,
        -5.674842858271821,
        -6.250797710936648,
        -8.407869194998023
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      "reducing_value": 1347215.3560904593,
      "t": [
        0.064,
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        0.5,
        1.1666666666666667,
        3.6666666666666665
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      "type": "pV",
      "using_tau_r": true
    },
    "rhoL": {
      "T_r": 586.5,
      "Tmax": 586.499,
      "Tmin": 290.25,
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))",
      "max_abserror_percentage": 0.002016002796678684,
      "n": [
        1699.0113849179957,
        -5407.311884597516,
        3713.384933876656,
        -140.88050502633448,
        138.43012562471498,
        0.5512142245482865
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      "reducing_value": 1043.0,
      "t": [
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        0.3575,
        0.364,
        2.1666666666666665
      ],
      "type": "rhoLnoexp",
      "using_tau_r": false
    },
    "rhoV": {
      "T_r": 586.5,
      "Tmax": 586.499,
      "Tmin": 290.25,
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))",
      "max_abserror_percentage": 0.02909502176566825,
      "n": [
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        -0.29764756387215136,
        -3.1891436123359056,
        -3.7005796634658807,
        0.3110259942331251,
        -10.126305860017903
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      "reducing_value": 1043.0,
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        1.0,
        1.6666666666666667,
        3.5
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      "type": "rhoV",
      "using_tau_r": true
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        -1101.3580280874742,
        5.2701691381899,
        -0.01034409006682623,
        6.508498985079078e-06,
        2.3338668092890836e-08,
        -7.099174606219544e-11,
        7.85860536033957e-14,
        -3.2603869504603975e-17
      ],
      "B": [
        1,
        -0.0016949427570215022
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      "Tmax": 586.4,
      "Tmin": 290.25,
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
      "max_abs_error": 1.460481733840588,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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      "A": [
        1324.7254739088855,
        -10.899430420888171,
        0.0376176101465594,
        -5.5603735452184006e-05,
        -1.5149150452865418e-08,
        1.7090250295500776e-10,
        -2.2266260282317656e-13,
        9.806408211682e-17
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      "B": [
        1,
        -0.0016901403551378739
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      "Tmax": 586.4,
      "Tmin": 290.25,
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
      "max_abs_error": 2.6678225424245605,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
    },
    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2014",
      "Tc": 586.5,
      "a": [
        0.04246
      ],
      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)",
      "n": [
        1.207
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  "EOS": [
    {
      "BibTeX_CP0": "",
      "BibTeX_EOS": "Thol-THESIS-2015",
      "STATES": {
        "hs_anchor": {
          "T": 645.1500000000001,
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          "hmolar": 134835.18893530086,
          "hmolar_units": "J/mol",
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          "rhomolar": 938.7,
          "rhomolar_units": "mol/m^3",
          "smolar": 244.54852904230444,
          "smolar_units": "J/mol/K"
        },
        "reducing": {
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          "hmolar": 96114.01869842727,
          "hmolar_units": "J/mol",
          "p": 1347215.3560904593,
          "p_units": "Pa",
          "rhomolar": 1043,
          "rhomolar_units": "mol/m^3",
          "smolar": 183.42688650914963,
          "smolar_units": "J/mol/K"
        },
        "sat_min_liquid": {
          "T": 290.25,
          "T_units": "K",
          "hmolar": -85385.52207776852,
          "hmolar_units": "J/mol",
          "p": 73.06609963813099,
          "p_units": "Pa",
          "rhomolar": 3235.579181327206,
          "rhomolar_units": "mol/m^3",
          "smolar": -233.01079773419227,
          "smolar_units": "J/mol/K"
        },
        "sat_min_vapor": {
          "T": 290.25,
          "T_units": "K",
          "hmolar": -29470.25393344716,
          "hmolar_units": "J/mol",
          "p": 73.06609963813099,
          "p_units": "Pa",
          "rhomolar": 0.03028424286845063,
          "rhomolar_units": "mol/m^3",
          "smolar": -40.36560171585889,
          "smolar_units": "J/mol/K"
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      "T_max": 1200,
      "T_max_units": "K",
      "Ttriple": 290.25,
      "Ttriple_units": "K",
      "acentric": 0.5981248267987835,
      "acentric_units": "-",
      "alpha0": [
        {
          "_note": "a1 and a2 calculated by IB.  Values in Thol thesis incorrect",
          "a1": 71.1636049792958,
          "a2": -21.6743650975623,
          "type": "IdealGasHelmholtzLead"
        },
        {
          "a": 3,
          "type": "IdealGasHelmholtzLogTau"
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        {
          "n": [
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            38.2456,
            58.975
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            0.06820119352088662,
            0.3410059676044331,
            3.0690537084398977
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          "type": "IdealGasHelmholtzPlanckEinstein"
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      "alphar": [
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            1,
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            3,
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          "type": "ResidualHelmholtzPower"
        },
        {
          "beta": [
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          "d": [
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            3,
            2,
            2
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          "epsilon": [
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            0.996,
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          "eta": [
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          "gamma": [
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            1.388,
            1.148,
            1.197,
            0.817
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          "type": "ResidualHelmholtzGaussian"
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      "gas_constant": 8.3144621,
      "gas_constant_units": "J/mol/K",
      "molar_mass": 0.29661576,
      "molar_mass_units": "kg/mol",
      "p_max": 180000000.0,
      "p_max_units": "Pa",
      "pseudo_pure": false
    },
    {
      "BibTeX_CP0": "",
      "BibTeX_EOS": "Colonna-FPE-2006",
      "STATES": {
        "hs_anchor": {
          "T": 645.1403990570001,
          "T_units": "K",
          "hmolar": 125575.49724587749,
          "hmolar_units": "J/mol",
          "p": 2353169.494223387,
          "p_units": "Pa",
          "rhomolar": 931.6100790000011,
          "rhomolar_units": "mol/m^3",
          "smolar": 227.67734367915278,
          "smolar_units": "J/mol/K"
        },
        "reducing": {
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          "T_units": "K",
          "hmolar": 89345.78916363802,
          "hmolar_units": "J/mol",
          "p": 1332000,
          "p_units": "Pa",
          "rhomolar": 1035.122310000001,
          "rhomolar_units": "mol/m^3",
          "smolar": 170.5022172629333,
          "smolar_units": "J/mol/K"
        },
        "sat_min_liquid": {
          "T": 290.25,
          "T_units": "K",
          "hmolar": -77643.64716249761,
          "hmolar_units": "J/mol",
          "p": 69.6092376840441,
          "p_units": "Pa",
          "rhomolar": 3200.4450981169975,
          "rhomolar_units": "mol/m^3",
          "smolar": -211.68352057551905,
          "smolar_units": "J/mol/K"
        },
        "sat_min_vapor": {
          "T": 290.25,
          "T_units": "K",
          "hmolar": -21203.0468911916,
          "hmolar_units": "J/mol",
          "p": 69.60923775666659,
          "p_units": "Pa",
          "rhomolar": 0.028853717881124525,
          "rhomolar_units": "mol/m^3",
          "smolar": -17.228394758947186,
          "smolar_units": "J/mol/K"
        }
      },
      "T_max": 673,
      "T_max_units": "K",
      "Ttriple": 290.25,
      "Ttriple_units": "K",
      "acentric": 0.592,
      "acentric_units": "-",
      "alpha0": [
        {
          "a1": 29.18574340067077,
          "a2": -14.02099419676275,
          "type": "IdealGasHelmholtzLead"
        },
        {
          "a": -1,
          "type": "IdealGasHelmholtzLogTau"
        },
        {
          "T0": 448.503917912145,
          "Tc": 586.49127187,
          "cp_over_R": -2.19568963609475,
          "type": "IdealGasHelmholtzCP0Constant"
        },
        {
          "T0": 448.503917912145,
          "Tc": 586.49127187,
          "c": [
            0.171652511428266,
            -0.000119093551580906,
            3.60816657991031e-08
          ],
          "t": [
            1,
            2,
            3
          ],
          "type": "IdealGasHelmholtzCP0PolyT"
        },
        {
          "a1": -36.9617168387456,
          "a2": 22.2512527290327,
          "reference": "NBP",
          "type": "IdealGasHelmholtzEnthalpyEntropyOffset"
        }
      ],
      "alphar": [
        {
          "d": [
            1,
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            1,
            2,
            3,
            7,
            2,
            5,
            1,
            4,
            3,
            4
          ],
          "l": [
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            0,
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            2,
            2,
            3,
            3
          ],
          "n": [
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            0.70301835,
            0.047851888,
            -0.8025348,
            -0.18968872,
            -0.022211781,
            0.0060103354
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          "t": [
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            14.5,
            12
          ],
          "type": "ResidualHelmholtzPower"
        }
      ],
      "critical_region_splines": {
        "T_max": 586.5,
        "T_min": 585.8223731516954,
        "_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": [
          0.0,
          -7.862666279638519e-06,
          0.016211685644670307,
          578.1434596708557
        ],
        "cV": [
          6.746394257626074e-08,
          -0.00021062780266197875,
          0.2191796259421155,
          510.4803477882244
        ],
        "rhomolar_max": 1324.4971267138706,
        "rhomolar_min": 824.503552249034
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      "gas_constant": 8.314472,
      "gas_constant_units": "J/mol/K",
      "molar_mass": 0.29661576,
      "molar_mass_units": "kg/mol",
      "p_max": 30000000,
      "p_max_units": "Pa",
      "pseudo_pure": false
    }
  ],
  "INFO": {
    "2DPNG_URL": "http://www.chemspider.com/ImagesHandler.ashx?id=10696",
    "ALIASES": [
      "Octamethylcyclotetrasiloxane",
      "OCTAMETHYLCYCLOTETRASILOXANE"
    ],
    "CAS": "556-67-2",
    "CHEMSPIDER_ID": 10696,
    "ENVIRONMENTAL": {
      "ASHRAE34": "UNKNOWN",
      "FH": -1,
      "GWP100": -1.0,
      "GWP20": -1.0,
      "GWP500": -1.0,
      "HH": -1,
      "Name": "D4",
      "ODP": -1.0,
      "PH": -1
    },
    "FORMULA": "C_{8}H_{24}O_{4}Si_{4}",
    "INCHI_KEY": "HMMGMWAXVFQUOA-UHFFFAOYSA-N",
    "INCHI_STRING": "InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3",
    "NAME": "D4",
    "REFPROP_NAME": "D4",
    "SMILES": "C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C"
  },
  "STATES": {
    "critical": {
      "T": 586.5,
      "T_units": "K",
      "hmolar": 96114.01869842727,
      "hmolar_units": "J/mol",
      "p": 1347215.3560904593,
      "p_units": "Pa",
      "rhomolar": 1043.0,
      "rhomolar_units": "mol/m^3",
      "smolar": 183.42688650914963,
      "smolar_units": "J/mol/K"
    },
    "triple_liquid": {
      "T": 290.25,
      "T_units": "K",
      "hmolar": -85385.52207776852,
      "hmolar_units": "J/mol",
      "p": 73.06609963813099,
      "p_units": "Pa",
      "rhomolar": 3235.579181327206,
      "rhomolar_units": "mol/m^3",
      "smolar": -233.01079773419227,
      "smolar_units": "J/mol/K"
    },
    "triple_vapor": {
      "T": 290.25,
      "T_units": "K",
      "hmolar": -29470.25393344716,
      "hmolar_units": "J/mol",
      "p": 73.06609963813099,
      "p_units": "Pa",
      "rhomolar": 0.03028424286845063,
      "rhomolar_units": "mol/m^3",
      "smolar": -40.36560171585889,
      "smolar_units": "J/mol/K"
    }
  }
}