{
  "ANCILLARIES": {
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        15.24802918356051,
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        0.05852384695478586,
        -0.0016608248488005134,
        2.5917542013291362e-05,
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      "Tmax": 33.045,
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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": 2.0258314621948443,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
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        0.004267658343433473,
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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": 4.358855352767591,
      "max_abs_error_units": "J/mol",
      "type": "rational_polynomial"
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    "melting_line": {
      "BibTeX": "Datchi-PRB-2000",
      "T_m": 14.009985,
      "parts": [
        {
          "T_0": 1,
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      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
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        3.754274235303921
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      "type": "pV",
      "using_tau_r": true
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      "T_r": 33.145,
      "Tmax": 33.144999999999925,
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      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))",
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      "type": "rhoLnoexp",
      "using_tau_r": false
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      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))",
      "max_abserror_percentage": 0.5551328985772819,
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      "type": "rhoV",
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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": 0.06088981461035203,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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        3.5311625815205474,
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        0.005532808520166855,
        -9.866226530055023e-05,
        8.894136171978514e-07,
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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": 0.1378275220858569,
      "max_abs_error_units": "J/mol/K",
      "type": "rational_polynomial"
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    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2012",
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        -1.4165,
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        0.675625
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      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)",
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  "EOS": [
    {
      "BibTeX_CP0": "",
      "BibTeX_EOS": "Leachman-JPCRD-2009",
      "STATES": {
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        "sat_min_liquid": {
          "T": 13.957,
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          "hmolar": -108.70835273182523,
          "hmolar_units": "J/mol",
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        "sat_min_vapor": {
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          "hmolar": 806.0017935109377,
          "hmolar_units": "J/mol",
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          "smolar": 59.34430288729439,
          "smolar_units": "J/mol/K"
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      "T_max": 1000,
      "T_max_units": "K",
      "Ttriple": 13.957,
      "Ttriple_units": "K",
      "acentric": -0.219,
      "acentric_units": "-",
      "alpha0": [
        {
          "a1": -1.4579856475,
          "a2": 1.888076782,
          "type": "IdealGasHelmholtzLead"
        },
        {
          "a": 1.5,
          "type": "IdealGasHelmholtzLogTau"
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        {
          "Tcrit": 33.145,
          "Tcrit_units": "K",
          "n": [
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            -0.792,
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          "type": "IdealGasHelmholtzPlanckEinsteinFunctionT",
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      "alphar": [
        {
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          "type": "ResidualHelmholtzPower"
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        {
          "beta": [
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          "type": "ResidualHelmholtzGaussian"
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      "critical_region_splines": {
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        "_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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      "gas_constant_units": "J/mol/K",
      "molar_mass": 0.00201588,
      "molar_mass_units": "kg/mol",
      "p_max": 2000000000,
      "p_max_units": "Pa",
      "pseudo_pure": false
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  ],
  "INFO": {
    "2DPNG_URL": "http://www.chemspider.com/ImagesHandler.ashx?id=762",
    "ALIASES": [
      "hydrogen",
      "HYDROGEN",
      "H2",
      "R702"
    ],
    "CAS": "1333-74-0",
    "CHEMSPIDER_ID": 762,
    "ENVIRONMENTAL": {
      "ASHRAE34": "A3",
      "FH": 4,
      "GWP100": -1.0,
      "GWP20": -1.0,
      "GWP500": -1.0,
      "HH": 0,
      "Name": "Hydrogen",
      "ODP": -1.0,
      "PH": 0
    },
    "FORMULA": "H_{2}",
    "INCHI_KEY": "UFHFLCQGNIYNRP-UHFFFAOYSA-N",
    "INCHI_STRING": "InChI=1S/H2/h1H",
    "NAME": "Hydrogen",
    "REFPROP_NAME": "HYDROGEN",
    "SMILES": "[HH]"
  },
  "STATES": {
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      "T": 33.145,
      "T_units": "K",
      "hmolar": 601.0565562608032,
      "hmolar_units": "J/mol",
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      "rhomolar_units": "mol/m^3",
      "smolar": 19.44159905328063,
      "smolar_units": "J/mol/K"
    },
    "triple_liquid": {
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      "hmolar": -108.70835273182523,
      "hmolar_units": "J/mol",
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      "rhomolar": 38198.54161031633,
      "rhomolar_units": "mol/m^3",
      "smolar": -6.193430589710146,
      "smolar_units": "J/mol/K"
    },
    "triple_vapor": {
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      "T_units": "K",
      "hmolar": 806.0017935109377,
      "hmolar_units": "J/mol",
      "p": 7357.828148402758,
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      "rhomolar": 64.41526923322962,
      "rhomolar_units": "mol/m^3",
      "smolar": 59.34430288729439,
      "smolar_units": "J/mol/K"
    }
  },
  "TRANSPORT": {
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      "BibTeX": "Assael-JPCRD-2011-Hydrogen",
      "critical": {
        "GAMMA": 0.052,
        "R0": 1.01,
        "gamma": 1.2415,
        "qD": 2500000000.0,
        "type": "simplified_Olchowy_Sengers",
        "zeta0": 1.5e-10
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      "dilute": {
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          -1.139e-06
        ],
        "B": [
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        "T_reducing": 33.145,
        "T_reducing_units": "K",
        "m": [
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          2,
          3
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        "n": [
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          2,
          3,
          4,
          5,
          6
        ],
        "type": "ratio_of_polynomials"
      },
      "residual": {
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        "T_reducing": 33.145,
        "T_reducing_units": "K",
        "d": [
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          3,
          4,
          4,
          5,
          5
        ],
        "rhomass_reducing": 31.262,
        "rhomass_reducing_units": "kg/m^3",
        "t": [
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          0,
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          0,
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        "type": "polynomial"
      }
    },
    "viscosity": {
      "BibTeX": "Muzny-JCED-2013",
      "dilute": {
        "C": 2.1357e-08,
        "a": [
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        "molar_mass": 0.00201588,
        "molar_mass_units": "kg/mol",
        "t": [
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          4
        ],
        "type": "collision_integral"
      },
      "epsilon_over_k": 30.41,
      "epsilon_over_k_units": "K",
      "higher_order": {
        "hardcoded": "Hydrogen"
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      "initial_density": {
        "b": [
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        "t": [
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        "type": "Rainwater-Friend"
      },
      "sigma_eta": 2.97e-10,
      "sigma_eta_units": "m"
    }
  }
}