{ "ALIASES": [ "neopentn", "NEOPENTANE" ], "ANCILLARIES": { "hL": { "A": [ 124269.19137233004, -4066.9617134835885, 39.84003725252666, -0.20452993697744778, 0.000625791527703856, -1.1470119738623036e-06, 1.1645433687035837e-09, -5.056827581168552e-13 ], "B": [ 1, -0.0022917184668224547 ], "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": 209.31369488288328, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ -518515.9410040757, 11937.541755819759, -111.95067504332391, 0.5757492776828032, -0.0017675104111108686, 3.2424319739019443e-06, -3.2929013340738935e-09, 1.4295701056133228e-12 ], "B": [ 1, -0.0022905839979928603 ], "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": 505.288911883845, "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": [ 65.57851435252087, -6.703708702040537, 0.07547414939486873, -0.00040530414914110706, 1.2635963874396336e-06, -2.3397948394091e-09, 2.391794625563196e-12, -1.0434525591418035e-15 ], "B": [ 1, -0.0022919925499166843 ], "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": 0.47664033512899096, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "sLV": { "A": [ -400.79370268936094, 15.909393006930621, -0.17794852523501303, 0.0009967634894781528, -3.217235246871334e-06, 6.100267985397818e-09, -6.341845628780214e-12, 2.8010740779034547e-15 ], "B": [ 1, -0.0022908487452450144 ], "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": 1.1527017414249565, "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": 5232425.802039939, "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": -4040.7333544404823, "hmolar_units": "J/mol", "p": 35400.94732693052, "p_units": "Pa", "rhomolar": 8701.720394850296, "rhomolar_units": "mol/m^3", "smolar": -14.961357774444568, "smolar_units": "J/mol/K" }, "sat_min_vapor": { "T": 256.6, "T_units": "K", "hmolar": 20107.389829938078, "hmolar_units": "J/mol", "p": 35400.947338431135, "p_units": "Pa", "rhomolar": 16.951063918632535, "rhomolar_units": "mol/m^3", "smolar": 79.14668269207665, "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": -4040.7333544404823, "hmolar_units": "J/mol", "p": 35400.94732693052, "p_units": "Pa", "rhomolar": 8701.720394850296, "rhomolar_units": "mol/m^3", "smolar": -14.961357774444568, "smolar_units": "J/mol/K" }, "triple_vapor": { "T": 256.6, "T_units": "K", "hmolar": 20107.389829938078, "hmolar_units": "J/mol", "p": 35400.947338431135, "p_units": "Pa", "rhomolar": 16.951063918632535, "rhomolar_units": "mol/m^3", "smolar": 79.14668269207665, "smolar_units": "J/mol/K" } } }