Xenon !Short name 7440-63-3 !CAS number Xenon !Full name Xe !Chemical formula {Xe} Xenon !Synonym 131.293 !Molar mass [g/mol] 161.405 !Triple point temperature [K] 165.05 !Normal boiling point [K] 289.733 !Critical temperature [K] 5842.0 !Critical pressure [kPa] 8.4 !Critical density [mol/L] 0.00363 !Acentric factor 0.0 !Dipole moment [Debye]; (exactly zero for monatomic molecules) NBP !Default reference state 10.0 !Version number 2036 !UN Number :UN: cryogen !Family :Family: 0.0 !Heating value (upper) [kJ/mol] :Heat: 1S/Xe !Standard InChI String :InChi: FHNFHKCVQCLJFQ-UHFFFAOYSA-N !Standard InChI Key :InChiKey: 434e2a40 (ethane) !Alternative fluid for mixing rules :AltID: 71fd7fa0 !Hash number from InChI Key :Hash: !The fluid files contain general information about the fluid in the first 15 to 20 lines, followed by sections for the ! equations of state, transport equations, and auxiliary equations. Equations of state are listed first. The NIST recommended ! equations begin with a hash mark (#). The secondary equations begin with the @ symbol. These symbols can be swapped to ! select a secondary equation as primary and the primary as secondary. The equation of state section also contains auxiliary ! equations for the ideal gas heat capacity or ideal gas Helmholtz energy. Below the equations of state (both primary and ! secondary) are the transport equations, first viscosity and then thermal conductivity. These are then followed by the ! secondary equations if available. The transport section also contains auxiliary equations required to calculate either the ! dilute gas state or the critical enhancement. At the end of the file are additional but not necessary auxiliary equations, ! including simple equations for the vapor pressure, saturated liquid and vapor densities, melting line (for some fluids), and ! sublimation line (for even fewer fluids). This section also contains the equations for dielectric constant and surface ! tension if available. The sections are divided by different symbols (these being _-+=^*~) to aid the eye in locating a ! particular section. Secondary equations are indented 10 spaces to avoid confusion with the NIST recommended equations. The ! end of the fluid file is marked with @END. Anything below that is ignored. ! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 03-30-98 EWL, Original version. ! 07-11-00 EWL, Add equation of state of Lemmon and Span. ! 01-27-02 EWL, Add sublimation line. ! 03-10-03 EWL, Change critical parameters slightly (truncated final digits). ! 04-08-04 EWL, Finalize equation of state. ! 07-07-04 EWL, Increase max density in transport equations. ! 08-05-04 EWL, Add Harvey and Lemmon dielectric correlation. ! 12-02-06 MLH, Update LJ for ECS. ! 01-30-07 EWL, Change triple point from 161.4 to 161.405 in accordance with Bedford et al., Metrologia, 33:133, 1996. ! 08-17-10 IDC, Add ancillary equations. ! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012). ! 08-06-17 EWL, Change melting point at Ttrp to match triple point pressure of Lemmon and Span. ! 11-22-17 MLH, Revise viscosity and thermal conductivity to replace old DDMIX correlations. ! 12-11-17 MLH, Adjust dilute gas ecs viscosity to match ref. value at 25 C from Berg and Moldover, JPCRD 41(4) 043104 (2012). ! 02-14-18 MLH, Redo thermal conductivity due to changes in viscosity made on 12.11.17 ! 02-19-18 MLH, Fixed typo in TK3 block. ! 04-03-18 MLH, Revise k to reflect bug fix due to different R values for internal contribution of thermal conductivity, revise Fc. ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for xenon of Lemmon and Span (2006). :TRUECRITICALPOINT: 289.733 8.4 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T) :DOI: 10.1021/je050186n ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., ? "Short Fundamental Equations of State for 20 Industrial Fluids," ? J. Chem. Eng. Data, 51(3):785-850, 2006. doi: 10.1021/je050186n ? ?The uncertainties in the equation of state are 0.2% in density up to 100 ? MPa, rising to 1% at higher pressures, 0.2% in vapor pressure, 1% in ? the speed of sound, and 2% in heat capacities. ? !``````````````````````````````````````````````````````````````````````````````` 161.405 !Lower temperature limit [K] 750.0 !Upper temperature limit [K] 700000.0 !Upper pressure limit [kPa] 28.78 !Maximum density [mol/L] CPP !Pointer to Cp0 model 131.293 !Molar mass [g/mol] 161.405 !Triple point temperature [K] 81.77 !Pressure at triple point [kPa] 22.59 !Density at triple point [mol/L] 165.05 !Normal boiling point temperature [K] 0.00363 !Acentric factor 289.733 5842.0 8.4 !Tc [K], pc [kPa], rhoc [mol/L] 289.733 8.4 !Reducing parameters [K, mol/L] 8.314472 !Gas constant [J/mol-K] 12 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms 0.83115 0.25 1. 0. !a(i),t(i),d(i),l(i) -2.3553 1.125 1. 0. 0.53904 1.5 1. 0. 0.014382 1.375 2. 0. 0.066309 0.25 3. 0. 0.00019649 0.875 7. 0. 0.14996 0.625 2. 1. -0.035319 1.75 5. 1. -0.15929 3.625 1. 2. -0.027521 3.625 4. 2. -0.023305 14.5 3. 3. 0.0086941 12.0 4. 3. #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for xenon of Lemmon and Span (2006). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.314472 !Reducing parameters for T, Cp0 1 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 2.5 0.0 #AUX !---Auxiliary function for PX0 PX0 !Helmholtz energy ideal-gas function for xenon of Lemmon and Span (2006). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 1 2 0 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) 1.5 1.0 !ai, ti for [ai*log(tau**ti)] terms -3.8227169849622977 0.0 !aj, ti for [ai*tau**ti] terms 3.8416390607135864 1.0 !aj, ti for [ai*tau**ti] terms #AUX !---Auxiliary function for PH0 PH0 !Ideal gas Helmholtz form for xenon. ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 2 0 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh 1.5 1.0 !ai, ti for [ai*log(tau**ti)] terms -3.8227178129 0.0 !aj, ti for [ai*tau**ti] terms 3.8416395351 1.0 -------------------------------------------------------------------------------- @EOS !---Equation of state--- BWR !MBWR equation of state for xenon of McCarty. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients from NIST Thermophysical Properties of Pure Fluids Database, NIST12, ? Version 3.0, National Institute of Standards and Technology, Boulder, CO, 1992. ? ?N.B. all temperatures on IPTS-68 ? !``````````````````````````````````````````````````````````````````````````````` 161.36 !Lower temperature limit [K] 1300.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 24.62 !Maximum density [mol/L] CPP !Pointer to Cp0 model 131.3 !Molar mass [g/mol] 161.36 !Triple point temperature [K] 81.654 !Pressure at triple point [kPa] 22.597 !Density at triple point [mol/L] 165.071 !Normal boiling point temperature [K] -0.00111 !Acentric factor 289.74 5821.0 11.0 !Tc [K], pc [kPa], rhoc [mol/L] 289.74 11.0 !Reducing parameters [K, mol/L] 8.3776661 !gamma 0.0831434 !Gas constant [L-bar/mol-K] 32 1 !Nterm, Ncoeff per term -0.001122246365118 0.4265740662874 -12.19294183093 998.6032891995 -129247.1898135 0.0001460668285129 -0.1075162481632 123.5414695585 -122563.8806967 0.4700505087543e-5 0.01436700919927 -13.31592168658 0.9460000692027e-4 0.01930354270958 23.7055871939 -0.0005601751815957 0.9004325692403e-5 -0.04754291673359 0.0008647482958006 113851.9318642 -1263477.094904 1843.675807499 9271172.468374 4.973184925072 428.2591875459 0.07690405557218 -522.7868138738 -0.0001048773067133 0.009082979494829 0.6458784488434e-6 -0.166767382207e-4 0.001556036272902 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #TRN !---ECS Transport--- ECS !Extended Corresponding States model (Nitrogen reference); fit to limited data for xenon. :DOI: 10.6028/NIST.IR.8209 ? ?``````````````````````````````````````````````````````````````````````````````` ?*** ESTIMATION METHOD *** NOT STANDARD REFERENCE QUALITY *** ?Huber, M.L., "Models for the Viscosity, Thermal Conductivity, and Surface Tension ? of Selected Pure Fluids as Implemented in REFPROP v10.0," NISTIR 8209, 2018. ? doi: 10.6028/NIST.IR.8209 ? ?Estimated uncertainty for gas-phase viscosity is 1%, for liquid to 60 MPa and temperatures above 170 K is 5%. ?Estimated uncertainty for gas-phase thermal conductivity is 5%, and 3% for the liquid at pressures to 50 MPa at temperatures 170 K to 235 K. ? ?The Lennard-Jones parameters were obtained by fitting data in Vogel, E., Ber. Bunsen-Ges. Phys. Chem., 88:997-1002, 1984. ? !``````````````````````````````````````````````````````````````````````````````` 161.405 !Lower temperature limit [K] 750.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 28.78 !Maximum density [mol/L] FEQ NITROGEN.FLD VS1 !Model for reference fluid viscosity TC1 !Model for reference fluid thermal conductivity BIG !Large molecule identifier 1.0012 0. 0. 0. !Large molecule parameters 1 !Lennard-Jones flag (0 or 1) (0 => use estimates) 0.3929 !Lennard-Jones coefficient sigma [nm] 260.91 !Lennard-Jones coefficient epsilon/kappa [K] 1 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2 0.00132 0. 0. 0. !Coefficient, power of T, spare1, spare2; dummy value only term is zero 3 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2 0.806961 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare 0.130263 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare -2.22093e-2 0. 2. 0. !Coefficient, power of Tr, power of Dr, spare 2 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2 0.906192 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare 6.383e-3 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare TK3 !Pointer to critical enhancement auxiliary function #AUX !---Auxiliary function for the thermal conductivity critical enhancement TK3 !Simplified thermal conductivity critical enhancement for xenon of Perkins et al. (2013). ? ?``````````````````````````````````````````````````````````````````````````````` ?Perkins, R.A., Sengers, J.V., Abdulagatov, I.M., and Huber, M.L., ? "Simplified Model for the Critical Thermal-Conductivity Enhancement in Molecular Fluids," ? Int. J. Thermophys., 34(2):191-212, 2013. doi: 10.1007/s10765-013-1409-z ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 9 0 0 0 !# terms: CO2-terms, spare, spare, spare 1.0 1.0 1.0 !Reducing parameters for T, rho, tcx [mW/(m-K)] 0.63 !Nu (universal exponent) 1.239 !Gamma (universal exponent) 1.02 !R0 (universal amplitude) 0.063 !Z (universal exponent--not used for t.c., only viscosity) 1.0 !C (constant in viscosity eqn = 1/[2 - (alpha + gamma)/(2*nu)], but often set to 1) 0.182e-9 !Xi0 (amplitude) [m] 0.058 !Gam0 (amplitude) [-] 0.479e-9 !Qd_inverse (modified effective cutoff parameter) [m]; estimated-not fitted to data 434.5995 !Tref (reference temperature)=1.5*Tc [K] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @ETA !---Viscosity--- VS2 !Pure fluid viscosity model from NIST12 for xenon. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients from NIST Thermophysical Properties of Pure Fluids Database, NIST12, ? Version 3.0, National Institute of Standards and Technology, Boulder, CO, 1992. ? ?Estimated uncertainty less than 5%. ? ?All temperatures are on IPTS-68. ? !``````````````````````````````````````````````````````````````````````````````` 161.36 !Lower temperature limit [K] 1300.0 !Upper temperature limit [K] 300000.0 !Upper pressure limit [kPa] 28.78 !Maximum density [mol/L] CI2 !Pointer to collision integral model 0.3297 !Lennard-Jones coefficient sigma [nm] 300.0 !Lennard-Jones coefficient epsilon/kappa [K] 0.305864975918623 !Const in Eq 19 = 5/16*(k*MW/1000/pi/Na)**0.5*1.0d12 0.0 !Exponent in Eq 20 for T 0.768059558541217 !Coefficient for initial density dependence of viscosity (eq 21); Fv(1) -0.585958377425158 !Fv(2) 2.984837805288 !Fv(3) 26.32847824613 !Fv(4) -10.78336030151 !Coefficients for residual viscosity, eqs (22 - 25) 50.05660460723 !Ev(2) 11.1406641168716 !Ev(3) -779.716643301403 !Ev(4) 0.0615104211699 !Ev(5) 10.7552268985402 !Ev(6) 70.1937254720167 !Ev(7) 5.3593311454524 !Ev(8) NUL !Pointer to the viscosity critical enhancement auxiliary function (none used) @AUX !---Auxiliary function for the collision integral CI2 !Collision integral model for xenon of McCarty. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients from NIST Thermophysical Properties of Pure Fluids Database, NIST12, ? Version 3.0, National Institute of Standards and Technology, Boulder, CO, 1992. ? ?Estimated uncertainty less than 5%. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 9 !Number of terms 128.829355170398 0 !Eta0 (eq 20): coeffs of {(e/kT)**((4-n)/3)} -824.923907889772 0 2218.37801659791 0 -3223.99202732053 0 2718.40030222947 0 -1324.88234523685 0 356.464839471621 0 -40.0927287567597 0 0 0 ******************************************************************************** @TCX !---Thermal conductivity--- TC3 !Pure fluid thermal conductivity model for xenon of McCarty. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients from NIST Thermophysical Properties of Pure Fluids Database, NIST12, ? Version 3.0, National Institute of Standards and Technology, Boulder, CO, 1992. ? ?Estimated uncertainty less than 6%. ? ?All temperatures are on IPTS-68. ? !``````````````````````````````````````````````````````````````````````````````` 161.36 !Lower temperature limit [K] 1300.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 28.78 !Maximum density [mol/L] 0.3297 !Lennard-Jones coefficient sigma [nm] 300.0 !Lennard-Jones coefficient epsilon/kappa [K] 0.305864975918623 !Const in Eq 20 = 5/16*(k*MW/1000/pi/Na)**0.5*1.0d12 0. !Exponent in Eq 20 for T 0.015244231368 !Eta0 (eq 20): coeffs of {(e/kT)**((4-n)/3)} -0.0905313615496 0.220032138191832 -0.278004805199205 0.189554114709829 -0.0636328719931 0.00929951868906 0. 0. 2.64173335524e-4 !Coefficient for initial density dependence of viscosity (eq 21); Fv(1) 4.73502202366e-5 !Fv(2) -0.6198732951154 !Fv(3) 1525.9253243 !Fv(4) -18.50657092152 !Coefficients for residual viscosity, eqs (22 - 25) 222.4871694717 !Ev(2) 11.0124644286886 !Ev(3) -3621.41559218313 !Ev(4) 0.00514892242754 !Ev(5) 16.2049998648212 !Ev(6) -11.4853001847611 !Ev(7) 5.15587382303351 !Ev(8) 1.7124 !F 0.00000003669 !Rm NUL !Pointer to critical enhancement auxiliary function ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for xenon of Mulero et al. (2012). :DOI: 10.1063/1.4768782 ? ?``````````````````````````````````````````````````````````````````````````````` ?Mulero, A., Cachadiņa, I., and Parra, M.I., ? "Recommended Correlations for the Surface Tension of Common Fluids," ? J. Phys. Chem. Ref. Data, 41(4), 043105, 2012. doi: 10.1063/1.4768782 ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 2 !Number of terms in surface tension model 289.733 !Critical temperature used in fit (dummy) -0.11538 1.0512 !Sigma0 and n 0.16598 1.098 #DE !---Dielectric constant--- DE3 !Dielectric constant model for xenon of Harvey and Lemmon (2005). :DOI: 10.1007/s10765-005-2351-5 ? ?``````````````````````````````````````````````````````````````````````````````` ?Harvey, A.H. and Lemmon, E.W., ? "Method for Estimating the Dielectric Constant of Natural Gas Mixtures," ? Int. J. Thermophys., 26(1):31-46, 2005. doi: 10.1007/s10765-005-2351-5 ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 273.16 1000.0 1.0 !Reducing parameters for T and D 0 1 3 0 0 0 !Number of terms in dielectric constant model 10.122 0. 1. 0. !Coefficient, T exp, D exp 31.97 0. 2. 0. 46.97 1. 2. 0. -948.4 0. 2.7 0. #MLT !---Melting line--- ML1 !Melting line model for xenon of Michels and Prins (1962). :DOI: 10.1016/0031-8914(62)90096-4 ? ?``````````````````````````````````````````````````````````````````````````````` ?Michels, A. and Prins, C., ? "The Melting Lines of Argon, Krypton and Xenon up to 1500 Atm; ? Representation of the Results by a Law of Corresponding States," ? Physica, 28:101-116, 1962. ? !``````````````````````````````````````````````````````````````````````````````` 161.405 !Lower temperature limit [K] 1300.0 !Upper temperature limit [K] 0. ! 0. ! 1. 101.325 !Reducing temperature and pressure 2 0 0 0 0 0 !Number of terms in melting line equation -2575.0728 0.0 !Coefficients and exponents 0.7983277028 1.589165 #SBL !---Sublimation line--- SB3 !Sublimation line model for xenon of Lemmon (2003). :DOI: ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., 2003. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 161.405 !Upper temperature limit [K] 0. ! 0. ! 161.405 81.75 !Reducing temperature and pressure 0 2 0 0 0 0 !Number of terms in sublimation line equation -13.9 1.06 !Coefficients and exponents 14.0 3.1 #PS !---Vapor pressure--- PS5 !Vapor pressure equation for xenon of Cullimore (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Cullimore, I.D., 2010. ? ?Functional Form: P=Pc*EXP[SUM(Ni*Theta^ti)*Tc/T] where Theta=1-T/Tc, Tc and Pc ? are the reducing parameters below, which are followed by rows containing Ni and ti. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 289.733 5842.0 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation -6.0231 1.0 1.4989 1.5 -0.74906 2.2 -1.2194 4.8 -0.44905 6.2 #DL !---Saturated liquid density--- DL1 !Saturated liquid density equation for xenon of Cullimore (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Cullimore, I.D., 2010. ? ?Functional Form: D=Dc*[1+SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are ? the reducing parameters below, which are followed by rows containing Ni and ti. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 289.733 8.4 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation 13.570 0.56 -47.545 0.8 63.876 1.0 -39.983 1.3 12.701 1.6 #DV !---Saturated vapor density--- DV3 !Saturated vapor density equation for xenon of Cullimore (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Cullimore, I.D., 2010. ? ?Functional Form: D=Dc*EXP[SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are ? the reducing parameters below, which are followed by rows containing Ni and ti. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 289.733 8.4 !Reducing parameters 6 0 0 0 0 0 !Number of terms in equation -3.0026 0.435 -6.0560 1.4 -60.339 4.4 488.38 6.2 -819.74 7.0 472.87 8.6 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890