{
  "ALIASES": [
    "CycloPentane", 
    "cyclopentane", 
    "CYCLOPENTANE"
  ], 
  "ANCILLARIES": {
    "hL": {
      "A": [
        -82967.15900757411, 
        260.24001024381056, 
        -0.03499490605151893, 
        -0.0021773201975390255, 
        1.1461963823472477e-05, 
        -2.827157164147574e-08, 
        3.3594915397510255e-11, 
        -1.5955975129081485e-14
      ], 
      "B": [
        1, 
        -0.0019226057524730146
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 280.32512958457846, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
    }, 
    "hLV": {
      "A": [
        28961.607062240542, 
        239.88204088992256, 
        -3.9075555989939224, 
        0.022782091083504687, 
        -7.439031428162516e-05, 
        1.4064012980217388e-07, 
        -1.441862822890711e-10, 
        6.244756936141855e-14
      ], 
      "B": [
        1, 
        -0.001914303389547097
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", 
      "max_abs_error": 632.7448707592746, 
      "max_abs_error_units": "J/mol", 
      "type": "rational_polynomial"
    }, 
    "pL": {
      "T_r": 511.72, 
      "Tmax": 511.719999999999, 
      "Tmin": 179.7, 
      "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.06993962946545418, 
      "n": [
        0.005640145137827244, 
        -8.049357440969791, 
        2.4664748335340834, 
        -1.3407752278951093, 
        -1.6536650781763431, 
        -1.270585253317597
      ], 
      "reducing_value": 4571200.0, 
      "t": [
        0.388, 
        1.011, 
        1.309, 
        2.935, 
        3.423, 
        6.579
      ], 
      "type": "pL", 
      "using_tau_r": true
    }, 
    "pV": {
      "T_r": 511.72, 
      "Tmax": 511.719999999999, 
      "Tmin": 179.7, 
      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.028737273286005838, 
      "n": [
        -9.601889908950373, 
        3.974125106492668, 
        2.6925579604302676, 
        -4.621940458120144, 
        -5.157782358169021, 
        3.340182642033233
      ], 
      "reducing_value": 4571200.0, 
      "t": [
        1.041, 
        1.3, 
        1.87, 
        2.257, 
        5.99, 
        6.955
      ], 
      "type": "pV", 
      "using_tau_r": true
    }, 
    "rhoL": {
      "T_r": 511.72, 
      "Tmax": 511.719999999999, 
      "Tmin": 179.7, 
      "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.30360463662223447, 
      "n": [
        4.175321169438228, 
        -3.3972763608243954, 
        3.265444750596592, 
        -14.140653461920774, 
        419.1357335784064, 
        -484.6437448434436
      ], 
      "reducing_value": 3820.0000000000005, 
      "t": [
        0.545, 
        1.142, 
        2.232, 
        6.456, 
        11.186, 
        11.952
      ], 
      "type": "rhoLnoexp", 
      "using_tau_r": false
    }, 
    "rhoV": {
      "T_r": 511.72, 
      "Tmax": 511.719999999999, 
      "Tmin": 179.7, 
      "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", 
      "max_abserror_percentage": 0.94766458281903, 
      "n": [
        -5.935725453092267, 
        1.591120947182766, 
        -8.958815994240467, 
        198.61227335356796, 
        -245.69777423593865, 
        469.5550522878147
      ], 
      "reducing_value": 3820.0000000000005, 
      "t": [
        0.602, 
        1.076, 
        3.895, 
        8.292, 
        8.939, 
        18.105
      ], 
      "type": "rhoV", 
      "using_tau_r": true
    }, 
    "sL": {
      "A": [
        -386.016150899106, 
        3.212240412943557, 
        -0.016973301916531413, 
        6.271955345004834e-05, 
        -1.4629357499920492e-07, 
        2.039096804972012e-10, 
        -1.5610026087113232e-13, 
        5.022535194748985e-17
      ], 
      "B": [
        1, 
        -0.0019201330473336091
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 0.5723510967124241, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }, 
    "sLV": {
      "A": [
        1018.1085087464782, 
        -12.88356472308697, 
        0.08091285875453381, 
        -0.00030558435581151986, 
        7.191037485907118e-07, 
        -1.0339091874965607e-09, 
        8.320824265766004e-13, 
        -2.8689166831997556e-16
      ], 
      "B": [
        1, 
        -0.0019050196074210314
      ], 
      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
      "max_abs_error": 1.360462610477811, 
      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
    }, 
    "surface_tension": {
      "BibTeX": "Mulero-JPCRD-2014", 
      "Tc": 511.72, 
      "a": [
        0.07348
      ], 
      "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", 
      "n": [
        1.388
      ]
    }
  }, 
  "CAS": "287-92-3", 
  "ENVIRONMENTAL": {
    "ASHRAE34": "UNKNOWN", 
    "FH": 3, 
    "GWP100": -1.0, 
    "GWP20": -1.0, 
    "GWP500": -1.0, 
    "HH": 2, 
    "Name": "Cyclopentane", 
    "ODP": -1.0, 
    "PH": 1
  }, 
  "EOS": [
    {
      "BibTeX_CP0": "", 
      "BibTeX_EOS": "Gedanitz-PREPRINT-2013", 
      "STATES": {
        "hs_anchor": {
          "T": 562.892, 
          "T_units": "K", 
          "hmolar": 48291.890258043895, 
          "hmolar_units": "J/mol", 
          "p": 7347467.012219242, 
          "p_units": "Pa", 
          "rhomolar": 3438.000000000001, 
          "rhomolar_units": "mol/m^3", 
          "smolar": 105.63004555968716, 
          "smolar_units": "J/mol/K"
        }, 
        "reducing": {
          "T": 511.72, 
          "T_units": "K", 
          "p": 4571200, 
          "p_units": "Pa", 
          "rhomolar": 3820.000000000001, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_liquid": {
          "T": 179.70000000000002, 
          "T_units": "K", 
          "p": 8.854271927261367, 
          "p_units": "Pa", 
          "rhomolar": 12107.608792031862, 
          "rhomolar_units": "mol/m^3"
        }, 
        "sat_min_vapor": {
          "T": 179.70000000000002, 
          "T_units": "K", 
          "p": 8.85427141819294, 
          "p_units": "Pa", 
          "rhomolar": 0.005926217866165058, 
          "rhomolar_units": "mol/m^3"
        }
      }, 
      "T_max": 550, 
      "T_max_units": "K", 
      "Ttriple": 179.7, 
      "Ttriple_units": "K", 
      "accentric": 0.201112573380599, 
      "accentric_units": "-", 
      "alpha0": [
        {
          "a1": 3.2489131288, 
          "a2": 2.6444166315, 
          "type": "IdealGasHelmholtzLead"
        }, 
        {
          "a": 0.96, 
          "type": "IdealGasHelmholtzLogTau"
        }, 
        {
          "n": [
            3.34, 
            18.6, 
            13.9, 
            4.86
          ], 
          "t": [
            0.2345032439615415, 
            2.540451809583366, 
            5.276322989134683, 
            10.35722660830141
          ], 
          "type": "IdealGasHelmholtzPlanckEinstein"
        }
      ], 
      "alphar": [
        {
          "d": [
            4, 
            1, 
            1, 
            2, 
            3, 
            1, 
            3, 
            2, 
            2, 
            7
          ], 
          "l": [
            0, 
            0, 
            0, 
            0, 
            0, 
            2, 
            2, 
            1, 
            2, 
            1
          ], 
          "n": [
            0.0536938, 
            1.60394, 
            -2.41244, 
            -0.474009, 
            0.203482, 
            -0.965616, 
            -0.344543, 
            0.353975, 
            -0.231373, 
            -0.0379099
          ], 
          "t": [
            1, 
            0.29, 
            0.8, 
            1.14, 
            0.5, 
            2, 
            1.5, 
            1, 
            3.36, 
            0.95
          ], 
          "type": "ResidualHelmholtzPower"
        }, 
        {
          "beta": [
            1.15, 
            1.61, 
            0.66, 
            2.72
          ], 
          "d": [
            1, 
            1, 
            3, 
            3
          ], 
          "epsilon": [
            0.68, 
            0.97, 
            0.84, 
            0.66
          ], 
          "eta": [
            0.82, 
            1.19, 
            0.79, 
            1.52
          ], 
          "gamma": [
            1.08, 
            0.36, 
            0.09, 
            1.48
          ], 
          "n": [
            0.867586, 
            -0.381827, 
            -0.108741, 
            -0.0976984
          ], 
          "t": [
            1, 
            2.5, 
            2.5, 
            1.5
          ], 
          "type": "ResidualHelmholtzGaussian"
        }
      ], 
      "critical_region_splines": {
        "T_max": 511.72, 
        "T_min": 511.71999999967744, 
        "_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, 
          0.0, 
          -3.3125554580735164e-08, 
          511.72012653961855
        ], 
        "cV": [
          0.0, 
          0.0, 
          3.3109614501400934e-08, 
          511.71987352127263
        ], 
        "rhomolar_max": 3820.0097389577454, 
        "rhomolar_min": 3819.990256554135
      }, 
      "gas_constant": 8.314472, 
      "gas_constant_units": "J/mol/K", 
      "molar_mass": 0.07013290000000001, 
      "molar_mass_units": "kg/mol", 
      "p_max": 250000000, 
      "p_max_units": "Pa", 
      "pseudo_pure": false
    }
  ], 
  "NAME": "Cyclopentane", 
  "REFPROP_NAME": "CYCLOPEN", 
  "STATES": {
    "critical": {
      "T": 511.72, 
      "T_units": "K", 
      "p": 4571200.0, 
      "p_units": "Pa", 
      "rhomolar": 3820.0000000000005, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_liquid": {
      "T": 179.70000000000002, 
      "T_units": "K", 
      "p": 8.854271927261367, 
      "p_units": "Pa", 
      "rhomolar": 12107.608792031862, 
      "rhomolar_units": "mol/m^3"
    }, 
    "triple_vapor": {
      "T": 179.70000000000002, 
      "T_units": "K", 
      "p": 8.85427141819294, 
      "p_units": "Pa", 
      "rhomolar": 0.005926217866165058, 
      "rhomolar_units": "mol/m^3"
    }
  }
}