R407C !Short name 407C-407C !CAS number 23% R32/25% R125/52% R134a !Full name R407C !Chemical formula R407C !Synonym 86.2036 !Molar mass [g/mol] 200.0 !Triple point temperature [K] 229.52 !Normal boiling point [K] 359.345 !Critical temperature [K] 4631.7 !Critical pressure [kPa] 5.26 !Critical density [mol/L] 0.363 !Acentric factor -1. !Dipole moment [Debye] IIR !Default reference state 10.0 !Version number ???? !UN Number :UN: halocb !Family :Family: ???? !Heating value (upper) at 25 C [kJ/mol] (ISO 6976:2016) :Heat: ???? !IUPAC Int. Chemical Identifier :InChi: ???? !InChi Key :InChiKey: ???? !Alternative fluid for mixing rules :AltID: 407c407c !Hash number from InChI Key :Hash: ! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 11-14-02 EWL, original version ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for R-407C of Lemmon (2003). :DOI: 10.1023/A:1025048800563 ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., ? "Pseudo Pure-Fluid Equations of State for the Refrigerant Blends R-410A, ? R-404A, R-507A, and R-407C," ? Int. J. Thermophys., 24(4):991-1006, 2003. ? ?The estimated uncertainty of density values calculated with the ? equation of state is 0.1%. The estimated uncertainty of calculated ? heat capacities and speed of sound values is 0.5%. Uncertainties of ? bubble and dew point pressures are 0.5%. ? !``````````````````````````````````````````````````````````````````````````````` 200.0 !Lower temperature limit [K] 500.0 !Upper temperature limit [K] 50000.0 !Upper pressure limit [kPa] 17.04 !Maximum density [mol/L] CPP !Pointer to Cp0 model 86.2036 !Molar mass [g/mol] 200.0 !Triple point temperature [K] 19.2 !Pressure at triple point [kPa] 17.04 !Density at triple point [mol/L] 229.52 !Normal boiling point temperature [K] 0.363 !Acentric factor 359.345 4631.7 5.26 !Tc [K], pc [kPa], rhoc [mol/L] 359.345 5.26 !Reducing parameters [K, mol/L] 8.314472 !Gas constant [J/mol-K] 21 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms 1.0588 0.241 1. 0. !a(i),t(i),d(i),l(i) -1.12018 0.69 1. 0. 0.629064 2.58 1. 0. -0.351953 1.15 2. 0. 0.00455978 0.248 5. 0. -1.75725 2.15 1. 1. -1.12009 2.43 2. 1. 0.0277353 5.3 2. 1. 0.898881 0.76 3. 1. -1.17591 1.48 3. 1. 0.0818591 0.24 5. 1. -0.0794097 2.86 5. 1. -0.104047e-4 8.0 5. 1. 0.233779 3.3 1. 2. -0.29179 4.7 1. 2. 0.0154776 0.45 4. 2. -0.0314579 8.4 4. 2. -0.00442552 16.2 2. 3. -0.0101254 26.0 4. 3. 0.00915953 16.0 5. 3. -0.00361575 8.7 6. 3. #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for R407C of Lemmon (2003). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.314472 !Reducing parameters for T, Cp0 1 3 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 0.76575 0.4 1.4245 864.0 3.9419 1887.0 3.1209 4802.0 #AUX !---Auxiliary function for PH0 PH0 !Ideal gas Helmholtz form for R407C. ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 3 3 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) -1.0 1.0 !ai, ti for [ai*log(tau**ti)] terms 2.13194 0.0 !aj, ti for [ai*tau**ti] terms 8.05008 1.0 -14.3914 -0.4 1.4245 -2.40437 !aj, ti for [ai*log(1-exp(ti*tau)] terms 3.9419 -5.25122 3.1209 -13.3632 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for R407C of Lemmon (2003). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., preliminary equation, 2003. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 !Number of terms in surface tension model 359.345 !Critical temperature used in fit (dummy) 0.064017 1.2557 !Sigma0 and n #PS !---Vapor pressure--- PS5 !Vapor pressure equation for R407C of Lemmon (2003) ? ?``````````````````````````````````````````````````````````````````````````````` ?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. ! 359.345 4631.7 !Reducing parameters 4 0 0 0 0 0 !Number of terms in equation -0.086077 0.4 -6.6364 0.965 -2.4648 3.1 -3.4776 5.0 #PL !---Liquid pressure--- PL5 !Liquid pressure equation for R407C of Lemmon (2003) ? ?``````````````````````````````````````````````````````````````````````````````` ?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. ! 359.345 4631.7 !Reducing parameters 4 0 0 0 0 0 !Number of terms in equation 0.48722 0.54 -6.6959 0.925 -1.4165 2.7 -2.5109 4.7 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890