{ "ALIASES": [ "Dodecamethylpentasiloxane", "DODECAMETHYLPENTASILOXANE" ], "ANCILLARIES": { "hL": { "A": [ -555923.7476496103, 1988.9004720441635, -3.8828697883380823, 0.006498066081282927, -2.6414286992849214e-06, -1.2406613051178509e-08, 1.9565050482247866e-11, -9.063466300165167e-15 ], "B": [ 1, -0.00157823626904387 ], "Tmax": 628.26, "Tmin": 192.0, "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 740.2316236024562, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ 140300.37991557716, -645.8201782021122, 1.574057938908, -0.002291873734183295, 2.1237884989375074e-07, 5.557200139685212e-09, -8.876616427559064e-12, 4.695144071529041e-15 ], "B": [ 1, -0.0015658337738799302 ], "Tmax": 628.26, "Tmin": 192.0, "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 2000.9862864786364, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "pS": { "T_r": 628.36, "Tmax": 628.3599999999988, "Tmin": 192.0, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.025890264817562958, "n": [ -10.453673923336904, 2.481740868042947, -11.432996001913109, 6.601821622186919, -5.964966309512551, -7.694099935065695 ], "reducing_value": 945000.0, "t": [ 1.015, 1.281, 2.914, 3.079, 4.049, 12.555 ], "type": "pL", "using_tau_r": true }, "rhoL": { "T_r": 628.36, "Tmax": 628.3599999999988, "Tmin": 192.0, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 0.9412402880123238, "n": [ 3.908835698000551, -1.7671208917208399, 9.16107326877534, -11.915428003947813, 5.425025736986464, -2.1727181064864802 ], "reducing_value": 685.7981626999992, "t": [ 0.371, 0.453, 1.774, 2.156, 3.401, 7.268 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 628.36, "Tmax": 628.3599999999988, "Tmin": 192.0, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 1.090311933515531, "n": [ 0.01880314261439147, -2.1886134791566874, -5.398887457148687, 9.132545382573525, -19.85612989152667, -35.776997465430505 ], "reducing_value": 685.7981626999992, "t": [ 0.071, 0.343, 0.856, 2.418, 2.94, 16.829 ], "type": "rhoV", "using_tau_r": true }, "sL": { "A": [ -2459.182489808673, 19.697211510832297, -0.09433254633460193, 0.0003023751794837206, -6.167494570001515e-07, 7.666422783869779e-10, -5.32752780977053e-13, 1.5896595444321927e-16 ], "B": [ 1, -0.0015432674555708556 ], "Tmax": 628.26, "Tmin": 192.0, "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 1.8821285898452516, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "sLV": { "A": [ 2630.834730596504, -31.024030584058558, 0.17897791513749084, -0.0006158690760177458, 1.3168272889454566e-06, -1.7172295950411074e-09, 1.2515740377093138e-12, -3.908001064860451e-16 ], "B": [ 1, -0.0015200094399678064 ], "Tmax": 628.26, "Tmin": 192.0, "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 4.385165352979042, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2014", "Tc": 628.36, "a": [ 0.03972 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.254 ] } }, "CAS": "141-63-9", "ENVIRONMENTAL": { "ASHRAE34": "UNKNOWN", "FH": 2, "GWP100": -1.0, "GWP20": -1.0, "GWP500": -1.0, "HH": 1, "Name": "MD3M", "ODP": -1.0, "PH": 0 }, "EOS": [ { "BibTeX_CP0": "", "BibTeX_EOS": "Colonna-FPE-2008", "STATES": { "hs_anchor": { "T": 691.196, "T_units": "K", "hmolar": 176878.41034321528, "hmolar_units": "J/mol", "p": 1729604.878920523, "p_units": "Pa", "rhomolar": 617.2183464299993, "rhomolar_units": "mol/m^3", "smolar": 294.5855544751468, "smolar_units": "J/mol/K" }, "reducing": { "T": 628.36, "T_units": "K", "hmolar": 119621.6599953922, "hmolar_units": "J/mol", "p": 945000, "p_units": "Pa", "rhomolar": 685.7981626999992, "rhomolar_units": "mol/m^3", "smolar": 209.58322302452075, "smolar_units": "J/mol/K" }, "sat_min_liquid": { "T": 192.0, "T_units": "K", "hmolar": -220741.96966016272, "hmolar_units": "J/mol", "p": 5.923973188262137e-07, "p_units": "Pa", "rhomolar": 2541.798960773629, "rhomolar_units": "mol/m^3", "smolar": -668.7840897655553, "smolar_units": "J/mol/K" }, "sat_min_vapor": { "T": 192.0, "T_units": "K", "hmolar": -135731.9040701164, "hmolar_units": "J/mol", "p": 2.0577476435306466e-07, "p_units": "Pa", "rhomolar": 1.2890097703756486e-10, "rhomolar_units": "mol/m^3", "smolar": -226.02333148406316, "smolar_units": "J/mol/K" } }, "T_max": 673, "T_max_units": "K", "Ttriple": 192, "Ttriple_units": "K", "acentric": 0.722, "acentric_units": "-", "alpha0": [ { "a1": -7.835183629103501, "a2": 8.367692358068204, "type": "IdealGasHelmholtzLead" }, { "a": -1, "type": "IdealGasHelmholtzLogTau" }, { "T0": 503.022623775204, "Tc": 628.36, "c": [ 55.71009199381512, 115.1245683430048, 2117.1, 88.79697953159261, 908.5 ], "type": "IdealGasHelmholtzCP0AlyLee" }, { "a1": 10.9232086184983, "a2": -6.79248521719259, "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": [ 1.20540386, -2.42914797, 0.69016432, -0.69268041, 0.18506046, 0.00031161436, 0.99862519, 0.074229034, -0.80259136, -0.20865337, -0.036461791, 0.019174051 ], "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": 628.36, "T_min": 628.3569917799531, "_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": [ 3.306215390839023e-07, -0.0007009970408251223, 0.49499207140405216, 511.9476683657978 ], "cV": [ -3.977392516737338e-07, 0.0007943503177039177, -0.528334852377581, 745.381333245749 ], "rhomolar_max": 699.3896862967481, "rhomolar_min": 673.1968167336198 }, "gas_constant": 8.314472, "gas_constant_units": "J/mol/K", "molar_mass": 0.384839, "molar_mass_units": "kg/mol", "p_max": 30000000, "p_max_units": "Pa", "pseudo_pure": false } ], "FORMULA": "C_{12}H_{36}O_{4}Si_{5}", "NAME": "MD3M", "REFPROP_NAME": "MD3M", "STATES": { "critical": { "T": 628.36, "T_units": "K", "hmolar": 119567.52238799288, "hmolar_units": "J/mol", "p": 945000.0, "p_units": "Pa", "rhomolar": 685.7981626999992, "rhomolar_units": "mol/m^3", "smolar": 209.49906996941505, "smolar_units": "J/mol/K" }, "triple_liquid": { "T": 192.0, "T_units": "K", "hmolar": -220741.96966016272, "hmolar_units": "J/mol", "p": 5.923973188262137e-07, "p_units": "Pa", "rhomolar": 2541.798960773629, "rhomolar_units": "mol/m^3", "smolar": -668.7840897655553, "smolar_units": "J/mol/K" }, "triple_vapor": { "T": 192.0, "T_units": "K", "hmolar": -135731.9040701164, "hmolar_units": "J/mol", "p": 2.0577476435306466e-07, "p_units": "Pa", "rhomolar": 1.2890097703756486e-10, "rhomolar_units": "mol/m^3", "smolar": -226.02333148406316, "smolar_units": "J/mol/K" } } }