Carbon monoxide !Short name 630-08-0 !CAS number Carbon monoxide !Full name CO !Chemical formula {CO} Carbon oxide !Synonym 28.0101 !Molar mass [g/mol] 68.16 !Triple point temperature [K] 81.64 !Normal boiling point [K] 132.86 !Critical temperature [K] 3494.0 !Critical pressure [kPa] 10.85 !Critical density [mol/L] 0.0497 !Acentric factor 0.1 !Dipole moment [Debye]; Reid, Prausnitz, & Poling, McGraw-Hill (1987) NBP !Default reference state 10.0 !Version number 1016 !UN Number :UN: cryogen !Family :Family: 282.98 !Heating value (upper) [kJ/mol] :Heat: 1S/CO/c1-2 !Standard InChI String :InChi: UGFAIRIUMAVXCW-UHFFFAOYSA-N !Standard InChI Key :InChiKey: edbdc8e0 (nitrogen) !Alternative fluid for mixing rules :AltID: 091cb7e0 !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 ! 12-04-97 EWL, Original version. ! 03-07-00 EWL, Add DDMIX transport properties. ! 04-12-01 EWL, Add Lemmon and Span short EOS. ! 03-13-03 EWL, Replace cp0 equation. ! 03-24-03 EWL, Add melting line equation. ! 03-01-04 EWL, Update Lemmon and Span short EOS. ! 05-28-04 MLH, Add TK3. ! 07-07-04 EWL, Update dmax for transport equations. ! 10-14-09 EWL, Replace Kunz FEK equation with Lemmon and Span. ! 06-17-10 CKL, Add ancillary equations. ! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012). ! 07-14-17 MLH, Add ecs fit to replace old DDMIX numbers. ! 08-06-17 EWL, Change melting point at Ttrp to match triple point pressure of Lemmon and Span. ! 02-28-18 IHB, Add sublimation line model. ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for carbon monoxide of Lemmon and Span (2006). :TRUECRITICALPOINT: 132.86 10.85 !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 equation of state is valid from the triple point to 500 K with ? pressures to 100 MPa. At higher pressures, the deviations from the equation ? increase rapidly and it is not recommended to use the equation above 100 ? MPa. The uncertainties in the equation are 0.3% in density (approaching 1% ? near the critical point), 0.2% in vapor pressure, and 2% in heat ? capacities. The uncertainty in the speed of sound is unknown. ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 500.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 33.84 !Maximum density [mol/L] CPP !Pointer to Cp0 model 28.0101 !Molar mass [g/mol] 68.16 !Triple point temperature [K] 15.53 !Pressure at triple point [kPa] 30.33 !Density at triple point [mol/L] 81.64 !Normal boiling point temperature [K] 0.0497 !Acentric factor 132.86 3494.0 10.85 !Tc [K], pc [kPa], rhoc [mol/L] 132.86 10.85 !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 0.90554 0.25 1. 0. !a(i),t(i),d(i),l(i) -2.4515 1.125 1. 0. 0.53149 1.5 1. 0. 0.024173 1.375 2. 0. 0.072156 0.25 3. 0. 0.00018818 0.875 7. 0. 0.19405 0.625 2. 1. -0.043268 1.75 5. 1. -0.12778 3.625 1. 2. -0.027896 3.625 4. 2. -0.034154 14.5 3. 3. 0.016329 12.0 4. 3. #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for carbon monoxide 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 2 1 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 3.5 0.0 0.22311e-6 1.5 1.0128 3089.0 #AUX !---Auxiliary function for PX0 PX0 !Helmholtz energy ideal-gas function for carbon monoxide of Lemmon and Span (2006). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 1 3 1 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) 2.5 1.0 !ai, ti for [ai*log(tau**ti)] terms -3.3728307183251847 0.0 !aj, ti for [ai*tau**ti] terms 3.3683452997752736 1.0 !aj, ti for [ai*tau**ti] terms 0.22311e-6 -1.5 1.0128 3089.0 !aj, ti for [ai*log(1-exp(-ti/T)] terms #AUX !---Auxiliary function for PH0 PH0 !Ideal gas Helmholtz form for carbon monoxide. ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 3 1 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh 2.5 1.0 !ai, ti for [ai*log(tau**ti)] terms -3.3728318564 0.0 !aj, ti for [ai*tau**ti] terms 3.3683460039 1.0 -0.0000911127 -1.5 1.0128 -23.2500376336 !aj, ti for [ai*log(1-exp(ti*tau)] terms -------------------------------------------------------------------------------- @EOS !---Equation of state--- FEK !Helmholtz equation of state for carbon monoxide of Lemmon and Span (2006). ? ?``````````````````````````````````````````````````````````````````````````````` ?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 ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 500.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 33.84 !Maximum density [mol/L] PHK !Pointer to Cp0 model 28.0101 !Molar mass [g/mol] 68.16 !Triple point temperature [K] 15.45 !Pressure at triple point [kPa] 30.33 !Density at triple point [mol/L] 81.64 !Normal boiling point temperature [K] 0.0497 !Acentric factor 132.86 3494.0 10.85 !Tc [K], pc [kPa], rhoc [mol/L] 132.86 10.85 !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 0.90554 0.25 1. 0. !a(i),t(i),d(i),l(i) -2.4515 1.125 1. 0. 0.53149 1.5 1. 0. 0.024173 1.375 2. 0. 0.072156 0.25 3. 0. 0.00018818 0.875 7. 0. 0.19405 0.625 2. 1. -0.043268 1.75 5. 1. -0.12778 3.625 1. 2. -0.027896 3.625 4. 2. -0.034154 14.5 3. 3. 0.016329 12.0 4. 3. @AUX !---Auxiliary function for PH0 PHK !Ideal gas Helmholtz form for carbon monoxide of Kunz and Wagner (2004). ? ?``````````````````````````````````````````````````````````````````````````````` ?Kunz, O., Klimeck, R., Wagner, W., Jaeschke, M. ? "The GERG-2004 Wide-Range Equation of State for Natural Gases ? and Other Mixtures," GERG Technical Monograph 15, ? Fortschritt-Berichte VDI, VDI-Verlag, Düsseldorf, 2007. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 2 0 1 1 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh 2.50055 1.0 !ai, ti for [ai*log(tau**ti)] terms 10.813340744 0.0 !aj, ti for [ai*tau**ti] terms -19.834733959 1.0 -0.00493 5.302762306 !aj, ti for cosh and sinh terms 1.02865 11.6698028 @EOS !---Equation of state--- BWR !MBWR equation of state for carbon monoxide of McCarty (1989). ? ?``````````````````````````````````````````````````````````````````````````````` ?McCarty, R.D., ? "Correlations for the Thermophysical Properties of Carbon Monoxide," ? National Institute of Standards and Technology, Boulder, CO, 1989. ? ?All temperatures are given on IPTS-68 ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 1000.0 !Upper temperature limit [K] 30000.0 !Upper pressure limit [kPa] 30.250 !Maximum density [mol/L] CP1 !Pointer to Cp0 model 28.011 !Molar mass [g/mol] 68.16 !Triple point temperature [K] 15.423 !Pressure at triple point [kPa] 30.249 !Density at triple point [mol/L] 81.632 !Normal boiling point temperature [K] 0.051 !Acentric factor 132.8 3493.5 10.85 !Tc [K], pc [kPa], rhoc [mol/L] 132.8 10.85 !Reducing parameters [K, mol/L] 10.85 !gamma 0.0831434 !Gas constant [L-bar/mol-K] 32 1 !Nterm, Ncoeff per term 0.008845582109949 -0.223674156684 1.742275796442 -216.9146998363 1721.504267082 -0.3990514770703e-4 0.1036880040451 -33.76308165071 20618.95161095 0.299371165635e-5 0.001856003597097 -0.2114419664527 -0.2436986935194e-5 -0.001858029609177 -1.734563867767 0.000150997083926 -0.2282721433205e-5 0.002202780295674 -0.3313357789163e-4 -14734.12120276 -314113.6651147 -145.1168999234 63234.41221817 -0.2203560539926 -20.8773830848 -0.001508165207553 2.74074063403 0.8687687989627e-6 -0.0001451419251928 -0.3040346241285e-8 0.4712050805815e-8 -0.2639772456566e-5 @AUX !---Auxiliary function for Cp0 CP1 !Ideal gas heat capacity function for carbon monoxide. ? ?``````````````````````````````````````````````````````````````````````````````` ?McCarty, R.D., ? "Correlations for the Thermophysical Properties of Carbon Monoxide," ? National Institute of Standards and Technology, Boulder, CO, 1989. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.31434 !Reducing parameters for T, Cp0 7 1 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh -20871.594 -3.0 892.08708 -2.0 -14.157993 -1.0 3.6028218 0.0 -0.00034021345 1.0 0.44616091e-6 2.0 -0.15154703e-9 3.0 0.90426143 30000.0 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #TRN !---ECS Transport--- ECS !Extended Corresponding States model (nitrogen reference); fit to limited data for carbon monoxide. :DOI: 10.6028/NIST.IR.8209 ? ?``````````````````````````````````````````````````````````````````````````````` ?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 at pressures to atmospheric is 1%, saturated liquid phase 2%. ?Estimated uncertainty for gas phase thermal conductivity at pressures to atmospheric is 2%, saturated liquid 5%. ?Upper temperature limit is 500 K. ? ?The Lennard-Jones parameters were obtained from fitting data of Vogel, E. Int. J. Thermophys., 33:741-757, 2012. ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 500.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 34.0 !Maximum density [mol/L] FEQ NITROGEN.FLD VS1 !Model for reference fluid viscosity TC1 !Model for reference fluid thermal conductivity NUL !Large molecule identifier 1 !Lennard-Jones flag (0 or 1) (0 => use estimates) 0.3615 !Lennard-Jones coefficient sigma [nm] for ECS method 103.697 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method 3 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2 3.29558e-4 0. 0. 0. !Coefficient, power of T, spare 1, spare 2 3.05976e-6 1. 0. 0. !Coefficient, power of T, spare 1, spare 2 -3.13222e-9 2. 0. 0. !Coefficient, power of T, spare 1, spare 2 2 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2 1.07369 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.0283067 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare 2 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2 1.00037 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.0082682 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 carbon monoxide 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) 0.164e-9 !Xi0 (amplitude) [m] 0.059 !Gam0 (amplitude) [-] 0.437e-9 !Qd_inverse (modified effective cutoff parameter) [m]; estimated-not fitted to data 199.29 !Tref (reference temperature)=1.5*Tc [K] ******************************************************************************** @TCX !---Thermal conductivity--- TC1 !Pure fluid thermal conductivity model from NIST14 for carbon monoxide. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients are taken from NIST14, Version 9.08 ? ?Critical enhancement model of Olchowy and Sengers added. Estimated uncertainty, except near ? the critical region, is 4-6% ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 1000.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 34. !Maximum density [mol/L] 3 0 !# terms for dilute gas function: numerator, denominator 91.7 0.001 !Reducing parameters for T, tcx 1.35558587 0. !Coefficient, power in T -0.16380500617 -1. !Coefficient, power in T 1. -96. !Coefficient, power in T 6 0 !# terms for background gas function: numerator, denominator 132.85 10.85 0.001 !Reducing parameters for T, rho, tcx 4.57815545028 0. 1. 0. !Coefficient, powers of T, rho, exp(rho) 62.5180582967 0. 3. 0. -2.52594417152 0. 4. 0. -65.0403809001 -1. 4. 0. 4.06956197472 0. 5. 0. 18.0214260963 -1. 5. 0. TK3 !Pointer to critical enhancement auxiliary function @ETA !---Viscosity--- VS2 !Pure fluid viscosity model from NIST14 for carbon monoxide. ? ?``````````````````````````````````````````````````````````````````````````````` ?Coefficients are taken from NIST14, Version 9.08 ? ?Estimated uncertainty is 2 %. ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 1000.0 !Upper temperature limit [K] 100000.0 !Upper pressure limit [kPa] 34.0 !Maximum density [mol/L] CI0 !Pointer to collision integral model 0.369 !Lennard-Jones coefficient sigma [nm] 91.7 !Lennard-Jones coefficient epsilon/kappa [K] 0.141374566 !Const 0.5 !Exponent for T 0.0 !Coefficient for initial density dependence of viscosity 0.0 0.0 100.0 -8.89560281339404 !Coefficients for residual viscosity -507.15174441 9.03858480666 5287.58110665 0.322741446715 -49.2143622937 -23.7275041203 10.85 NUL !Pointer to the viscosity critical enhancement auxiliary function (none used) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for carbon monoxide of Mulero et al. (2012). :DOI: 10.1063/1.4768782 ? ?``````````````````````````````````````````````````````````````````````````````` ?Mulero, A., Cachadiña, 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. ! 1 !Number of terms in surface tension model 132.86 !Critical temperature used in fit (dummy) 0.02843 1.148 !Sigma0 and n #MLT !---Melting line--- ML1 !Melting line model for carbon monoxide of Barreiros et al. (1982). :DOI: 10.1016/0021-9614(82)90044-1 ? ?``````````````````````````````````````````````````````````````````````````````` ?Barreiros, S.F., Calado, J.C.G., and Nunes da Ponte, M., ? "The Melting Curve of Carbon Monoxide," ? J. Chem. Thermodyn., 14:1197-8, 1982. ? !``````````````````````````````````````````````````````````````````````````````` 68.16 !Lower temperature limit [K] 1000.0 !Upper temperature limit [K] 0. ! 0. ! 1. 1000. !Reducing temperature and pressure 2 0 0 0 0 0 !Number of terms in melting line equation -143.03688 0.0 !Coefficients and exponents 0.0195608 2.10747 #SBL !---Sublimation line--- SB2 !Sublimation line model for carbon monoxide of Brown and Zeigler (2009). :DOI: 10.1007/978-1-4613-9856-1_76 ? ?``````````````````````````````````````````````````````````````````````````````` ?Based on G.N. Brown and W.T. Ziegler, Adv. Cryo. Eng., 25:662-670, 1979. ? Modified to match the triple point of the equation of state. ? !``````````````````````````````````````````````````````````````````````````````` 61.55 !Lower temperature limit [K] 68.16 !Upper temperature limit [K] 0. ! 0. ! 1.0 1000.0 !Reducing temperature and pressure 4 0 0 0 0 0 !Number of terms in sublimation line equation 7.94524 0.0 !Coefficients and exponents -7.48151e2 -1.0 -5.8433e3 -2.0 3.9385e4 -3.0 #PS !---Vapor pressure--- PS5 !Vapor pressure equation for carbon monoxide of Lemmon (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, C.K. and Lemmon, E.W., 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. ! 132.86 3494 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation -6.1192 1.0 1.0411 1.5 -6.2162 3.9 10.437 4.6 -7.6813 5.4 #DL !---Saturated liquid density--- DL1 !Saturated liquid density equation for carbon monoxide of Lemmon (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, C.K. and Lemmon, E.W., 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. ! 132.86 10.85 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation 2.9570 0.398 -4.2880 0.735 8.7643 1.08 -8.4001 1.5 3.6372 1.9 #DV !---Saturated vapor density--- DV3 !Saturated vapor density equation for carbon monoxide of Lemmon (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, C.K. and Lemmon, E.W., 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. ! 132.86 10.85 !Reducing parameters 6 0 0 0 0 0 !Number of terms in equation -2.5439 0.395 -5.5601 1.21 -8.5276 3.0 -5.1163 3.5 -17.701 6.0 -29.858 8.0 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890 @AUX !---Auxiliary function for the thermal conductivity critical enhancement TK3 !Simplified thermal conductivity critical enhancement for carbon monoxide of Olchowy and Sengers (1989). ? ?``````````````````````````````````````````````````````````````````````````````` ?Olchowy, G.A. and Sengers, J.V., ? "A simplified representation for the thermal conductivity of fluids in the critical region," ? Int. J. Thermophysics, 10:417-426, 1989. doi: 10.1007/BF01133538 ? ?This is the version used with the NIST14 fit. ? !``````````````````````````````````````````````````````````````````````````````` 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) 1.03 !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) 0.194e-9 !Xi0 (amplitude) [m] 0.0496 !Gam0 (amplitude) [-] 1.4449e-9 !Qd_inverse (modified effective cutoff parameter) [m]; estimated-not fitted to data 199.29 !Tref (reference temperature)=1.5*Tc [K]