{ "ALIASES": [ "nOctane", "Octane", "OCTANE", "N-OCTANE" ], "ANCILLARIES": { "hL": { "A": [ -183177.35483611427, 525.0478100264287, -0.02424142408890619, -0.0031858294009637347, 1.3575908113940785e-05, -2.8938954849432542e-08, 3.0291894591187006e-11, -1.274783296690679e-14 ], "B": [ 1, -0.0017352840081239238 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 218.5846846573004, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ 45004.89292315416, 278.84169682211717, -4.396173307232074, 0.022933252547995102, -6.619522326930906e-05, 1.1059344889869568e-07, -1.0048383508047224e-10, 3.8712987406044964e-14 ], "B": [ 1, -0.0017296104792348032 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 512.5261626439958, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "pL": { 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{ "T0": 398.773831136, "Tc": 569.32, "c": [ 4, 15.6865, 158.922, 33.8029, 815.064 ], "type": "IdealGasHelmholtzCP0AlyLee" }, { "T0": 398.773831136, "Tc": 569.32, "c": [ 0, 48.1731, 1693.07, 0, 0 ], "type": "IdealGasHelmholtzCP0AlyLee" }, { "a1": 17.1871525209699, "a2": -1.39902544739164, "reference": "NBP", "type": "IdealGasHelmholtzEnthalpyEntropyOffset" } ], "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": [ 1.0722545, -2.4632951, 0.65386674, -0.36324974, 0.1271327, 0.00030713573, 0.52656857, 0.019362863, -0.58939427, -0.14069964, -0.0078966331, 0.0033036598 ], "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" } ], "gas_constant": 8.31451, "gas_constant_units": "J/mol/K", "molar_mass": 0.1142285, "molar_mass_units": "kg/mol", "p_max": 96000000, "p_max_units": "Pa", "pseudo_pure": false } ], "NAME": "n-Octane", "REFPROP_NAME": "OCTANE", "STATES": { "critical": 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-0.75, -1.0, -1.25, -1.5, -2.5, -5.5 ], "type": "Rainwater-Friend" }, "sigma_eta": 6.3617e-10, "sigma_eta_units": "m" } } }