{ "ALIASES": [ "Hexamethyldisiloxane", "HEXAMETHYLDISILOXANE" ], "ANCILLARIES": { "hL": { "A": [ -117714.7426714015, -732.0461839541467, 10.585243993122678, -0.05025577679840955, 0.00013708750872096212, -2.2376356994498047e-07, 2.0134380021518343e-10, -7.723374663280743e-14 ], "B": [ 1, -0.001914862684113209 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 324.51995544067177, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ -212182.67710444034, 5198.774686512117, -45.02390932795687, 0.2077414648613027, -0.0005667463411050226, 9.184974999976777e-07, -8.204621222486757e-10, 3.1231900406669636e-13 ], "B": [ 1, -0.0019168356461131452 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 1105.7351468009783, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "pL": { "T_r": 518.75, "Tmax": 518.749999999999, "Tmin": 273.0, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.20111645182863125, "n": [ -6.066365670683859, -1.017358368453696, -1.2952535297950865, -359.85773789162744, 626.9902185535459, -3052.796872382347 ], "reducing_value": 1939000.0, "t": [ 0.941, 1.326, 2.071, 7.44, 8.26, 13.747 ], "type": "pL", "using_tau_r": true }, "pV": { "T_r": 518.75, "Tmax": 518.749999999999, "Tmin": 273.0, "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.20111645178579884, "n": [ -1.9009492315036665, -5.340645245910856, -0.9843148559865389, -6.609078226952975, 347.0300616124387, -6398.298737379578 ], "reducing_value": 1939000.0, "t": [ 0.855, 1.041, 2.576, 4.341, 11.815, 16.363 ], "type": "pV", "using_tau_r": true }, "rhoL": { "T_r": 518.75, "Tmax": 518.749999999999, "Tmin": 273.0, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 17.956753927465808, "n": [ 10.867417370343293, -26.426060451546014, 247.0862159714223, -573.747985737039, 1763408.557605998, -8586317.70489454 ], "reducing_value": 1589.825, "t": [ 0.712, 1.429, 3.552, 4.879, 15.966, 18.374 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 518.75, "Tmax": 518.749999999999, "Tmin": 273.0, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 16.01032229517174, "n": [ -7.501839129825876, 109.24138401462254, -471.55475994248695, 1970.622943483528, -204421.66641651493, 484946.5588455783 ], "reducing_value": 1589.825, "t": [ 0.662, 2.85, 3.956, 6.268, 12.261, 13.876 ], "type": "rhoV", "using_tau_r": true }, "sL": { "A": [ -729.0492916617384, 3.6107960222648816, -0.004049168925459966, -2.0455322142720204e-05, 1.0473854466166583e-07, -2.1970685645755333e-10, 2.276905441396525e-13, -9.570935521967652e-17 ], "B": [ 1, -0.0019150652815157522 ], "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 0.6201581080074519, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "sLV": { "A": [ 754.2454247031544, -4.580846551419224, -0.0010839394284265574, 0.00010252819294147239, -4.4501428527565387e-07, 9.042125075246615e-10, -9.261861376840753e-13, 3.866511817046167e-16 ], "B": [ 1, -0.001916957179589167 ], "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 2.1175522132491507, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2014", "Tc": 518.75, "a": [ 0.04576 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.272 ] } }, "CAS": "107-46-0", "ENVIRONMENTAL": { "ASHRAE34": "UNKNOWN", "FH": 3, "GWP100": -1.0, "GWP20": -1.0, "GWP500": -1.0, "HH": 2, "Name": "MM", "ODP": -1.0, "PH": 1 }, "EOS": [ { "BibTeX_CP0": "", "BibTeX_EOS": "Colonna-FPE-2006", "STATES": { "hs_anchor": { "T": 570.569969244, "T_units": "K", "hmolar": 80348.89788317229, "hmolar_units": "J/mol", "p": 3526053.812709895, "p_units": "Pa", "rhomolar": 1687.203684, "rhomolar_units": "mol/m^3", "smolar": 168.02387397615578, "smolar_units": "J/mol/K" }, "reducing": { "T": 518.69997204, "T_units": "K", "p": 1939390, "p_units": "Pa", "rhomolar": 1874.67076, "rhomolar_units": "mol/m^3" }, "sat_min_liquid": { "T": 273.0, "T_units": "K", "p": 1316.9863878970673, "p_units": "Pa", "rhomolar": 4817.682589392619, "rhomolar_units": "mol/m^3" }, "sat_min_vapor": { "T": 273.0, "T_units": "K", "p": 1316.9863835328467, "p_units": "Pa", "rhomolar": 0.5820069274501007, "rhomolar_units": "mol/m^3" } }, "T_max": 673, "T_max_units": "K", "Ttriple": 204.93, "Ttriple_units": "K", "accentric": 0.418, "accentric_units": "-", "alpha0": [ { "a1": 8.673203925289393, "a2": -6.135769396208712, "type": "IdealGasHelmholtzLead" }, { "a": -1, "type": "IdealGasHelmholtzLogTau" }, { "T0": 373.400735665744, "Tc": 518.69997204, "cp_over_R": 6.24140654992885, "type": "IdealGasHelmholtzCP0Constant" }, { "T0": 373.400735665744, "Tc": 518.69997204, "c": [ 0.0891626070783569, -5.00332432414229e-05, 8.41905535312405e-09 ], "t": [ 1, 2, 3 ], "type": "IdealGasHelmholtzCP0PolyT" }, { "a1": -15.6234566904535, "a2": 13.6186846329006, "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": [ 1.01686012, -2.19713029, 0.75443188, -0.68003426, 0.19082162, 0.0010530133, 0.6284595, 0.030903042, -0.83948727, -0.20262381, -0.035131597, 0.025902341 ], "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": 8.314472, "gas_constant_units": "J/mol/K", "molar_mass": 0.16237752, "molar_mass_units": "kg/mol", "p_max": 30000000, "p_max_units": "Pa", "pseudo_pure": false } ], "NAME": "MM", "REFPROP_NAME": "MM", "STATES": { "critical": { "T": 518.75, "T_units": "K", "p": 1939000.0, "p_units": "Pa", "rhomolar": 1589.825, "rhomolar_units": "mol/m^3" }, "triple_liquid": { "T": 273.0, "T_units": "K", "p": 1316.9863878970673, "p_units": "Pa", "rhomolar": 4817.682589392619, "rhomolar_units": "mol/m^3" }, "triple_vapor": { "T": 273.0, "T_units": "K", "p": 1316.9863835328467, "p_units": "Pa", "rhomolar": 0.5820069274501007, "rhomolar_units": "mol/m^3" } } }