{ "ALIASES": [ "neopentn", "NEOPENTANE" ], "ANCILLARIES": { "hL": { "A": [ 124398.12449424341, -4069.7260588797417, 39.865344621623876, -0.20465804373313543, 0.0006261788862981817, -1.147711719653992e-06, 1.1652426600873706e-09, -5.05981035297125e-13 ], "B": [ 1, -0.0022917337119571666 ], "Tmax": 433.64, "Tmin": 256.6, "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 208.57515982521545, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ -518480.39595780877, 11936.796336095838, -111.94402521672355, 0.5757165572886795, -0.0017674145418215038, 3.2422647714461543e-06, -3.2927406709526943e-09, 1.42950452848324e-12 ], "B": [ 1, -0.0022905880348981066 ], "Tmax": 433.64, "Tmin": 256.6, "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 504.75087885294374, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "pL": { "T_r": 433.74, "Tmax": 433.73999999999927, "Tmin": 256.6, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.011877907135438015, "n": [ 1.4023117580169653, -7.971208710752704, 2.5306662744660664, -3.6491716187944356, -72.03663743646202, 323.50182182555415 ], "reducing_value": 3196000.0, "t": [ 0.973, 0.987, 1.865, 2.411, 9.003, 11.534 ], "type": "pL", "using_tau_r": true }, "pV": { "T_r": 433.74, "Tmax": 433.73999999999927, "Tmin": 256.6, "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.009973909412830384, "n": [ -7.502312156089728, 11.000117855992295, -400.6256764267208, 433.78538017962705, -45.58182775735909, -0.7322302008433458 ], "reducing_value": 3196000.0, "t": [ 1.011, 1.701, 2.3, 2.345, 2.698, 6.49 ], "type": "pV", "using_tau_r": true }, "rhoL": { "T_r": 433.74, "Tmax": 433.73999999999927, "Tmin": 256.6, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 0.546133509156399, "n": [ 2.811511709838611, -0.6819933999019258, 143.31340246450836, -250.44132450192117, 324.6743119533206, -196312.80251857708 ], "reducing_value": 3270.0, "t": [ 0.385, 0.435, 3.763, 4.175, 6.202, 16.14 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 433.74, "Tmax": 433.73999999999927, "Tmin": 256.6, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.6012535915160933, "n": [ -3.7861930152056065, 8.462476541870759, -339.50200633681567, 403.5197007430728, -111.52402460892499, 41.26753585967676 ], "reducing_value": 3270.0, "t": [ 0.423, 1.041, 1.753, 1.863, 2.594, 3.606 ], "type": "rhoV", "using_tau_r": true }, "sL": { "A": [ 65.86783492273244, -6.70990935502692, 0.07553092304129144, -0.0004055915785167124, 1.2644655472999756e-06, -2.3413649654837414e-09, 2.3933637238075795e-12, -1.0441218210144871e-15 ], "B": [ 1, -0.0022920076635560786 ], "Tmax": 433.64, "Tmin": 256.6, "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 0.4749211866555463, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "sLV": { "A": [ -400.83898549036587, 15.910238903741282, -0.17795522125466273, 0.000996792552636207, -3.2173100080938775e-06, 6.100382157240419e-09, -6.34194175008193e-12, 2.8011086685004935e-15 ], "B": [ 1, -0.0022908528560697658 ], "Tmax": 433.64, "Tmin": 256.6, "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 1.151424431016487, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2014", "Tc": 433.74, "a": [ 0.04465 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.21 ] } }, "CAS": "463-82-1", "ENVIRONMENTAL": { "ASHRAE34": "UNKNOWN", "FH": 4, "GWP100": -1.0, "GWP20": -1.0, "GWP500": -1.0, "HH": 1, "Name": "Neopentane", "ODP": -1.0, "PH": 0 }, "EOS": [ { "BibTeX_CP0": "", "BibTeX_EOS": "Lemmon-JCED-2006", "STATES": { "hs_anchor": { "T": 477.11400000000003, "T_units": "K", "hmolar": 42823.00858820105, "hmolar_units": "J/mol", "p": 5232425.802039938, "p_units": "Pa", "rhomolar": 2943.0, "rhomolar_units": "mol/m^3", "smolar": 109.6920638994305, "smolar_units": "J/mol/K" }, "reducing": { "T": 433.74, "T_units": "K", "hmolar": 33491.64156310888, "hmolar_units": "J/mol", "p": 3196000, "p_units": "Pa", "rhomolar": 3270, "rhomolar_units": "mol/m^3", "smolar": 90.62692502621029, "smolar_units": "J/mol/K" }, "sat_min_liquid": { "T": 256.6, "T_units": "K", "hmolar": -4040.7333544405915, "hmolar_units": "J/mol", "p": 35400.94732528149, "p_units": "Pa", "rhomolar": 8701.720394850267, "rhomolar_units": "mol/m^3", "smolar": -14.961357774444258, "smolar_units": "J/mol/K" }, "sat_min_vapor": { "T": 256.6, "T_units": "K", "hmolar": 20107.38982999755, "hmolar_units": "J/mol", "p": 35400.94732532063, "p_units": "Pa", "rhomolar": 16.95106391221598, "rhomolar_units": "mol/m^3", "smolar": 79.1466826953226, "smolar_units": "J/mol/K" } }, "T_max": 550, "T_max_units": "K", "Ttriple": 256.6, "Ttriple_units": "K", "accentric": 0.1961, "accentric_units": "-", "alpha0": [ { "a1": 0.8702452614, "a2": 1.6071746358, "type": "IdealGasHelmholtzLead" }, { "a": 3, "type": "IdealGasHelmholtzLogTau" }, { "n": [ 14.422, 12.868, 17.247, 12.663 ], "t": [ 1.636925346982063, 3.977036934569097, 7.562133997325587, 17.9531516576751 ], "type": "IdealGasHelmholtzPlanckEinstein" } ], "alphar": [ { "d": [ 1, 1, 1, 2, 3, 7, 2, 5, 1, 4, 3, 4 ], "l": [ 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 3, 3 ], "n": [ 1.1136, -3.1792, 1.1411, -0.10467, 0.11754, 0.00034058, 0.29553, -0.074765, -0.31474, -0.099401, -0.039569, 0.023177 ], "t": [ 0.25, 1.125, 1.5, 1.375, 0.25, 0.875, 0.625, 1.75, 3.625, 3.625, 14.5, 12 ], "type": "ResidualHelmholtzPower" } ], "critical_region_splines": { "T_max": 433.74, "T_min": 433.7374308769143, "_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": [ 3.5552432643477683e-09, -3.6044510806120894e-05, 0.12168351856799782, 296.9433793880215 ], "cV": [ -5.6898059160504035e-09, 5.456581605156137e-05, -0.1743388599380053, 619.3097765122714 ], "rhomolar_max": 3321.0423374845595, "rhomolar_min": 3218.167274770953 }, "gas_constant": 8.314472, "gas_constant_units": "J/mol/K", "molar_mass": 0.07214878, "molar_mass_units": "kg/mol", "p_max": 200000000, "p_max_units": "Pa", "pseudo_pure": false } ], "NAME": "Neopentane", "REFPROP_NAME": "NEOPENTN", "STATES": { "critical": { "T": 433.74, "T_units": "K", "p": 3196000.0, "p_units": "Pa", "rhomolar": 3270.0, "rhomolar_units": "mol/m^3" }, "triple_liquid": { "T": 256.6, "T_units": "K", "hmolar": -4040.7333544405915, "hmolar_units": "J/mol", "p": 35400.94732528149, "p_units": "Pa", "rhomolar": 8701.720394850267, "rhomolar_units": "mol/m^3", "smolar": -14.961357774444258, "smolar_units": "J/mol/K" }, "triple_vapor": { "T": 256.6, "T_units": "K", "hmolar": 20107.38982999755, "hmolar_units": "J/mol", "p": 35400.94732532063, "p_units": "Pa", "rhomolar": 16.95106391221598, "rhomolar_units": "mol/m^3", "smolar": 79.1466826953226, "smolar_units": "J/mol/K" } } }