Chemical Properties of Methane, trifluoro- (CAS 75-46-7)

Methane, trifluoro-

InChI
InChI=1S/CHF3/c2-1(3)4/h1H
InChI Key
XPDWGBQVDMORPB-UHFFFAOYSA-N
Formula
CHF3
SMILES
FC(F)F
Molecular Weight1
70.01
CAS
75-46-7
Other Names
  • Arcton
  • Arcton 1
  • CHF3
  • FC 23
  • FC 23 (fluorocarbon)
  • Fluoroform [R23]
  • Fluoryl
  • Freon 23
  • Freon F-23
  • Genetron 23
  • Genetron HFC23
  • HFC 23
  • Halocarbon 23
  • Propellant 23
  • R 23
  • R 23 (halocarbon)
  • R-23
  • REFRIGERANT-23
  • Refrigerant 23
  • UN 1984
  • carbon trifluoride
  • fluoroform
  • methyl trifluoride
  • trifluoromethane
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Physical Properties

Property Value Unit Source
ω [0.2528; 0.2600]   Show Hide
ω 0.2528 PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω 0.2600 KDB
PAff 619.50 kJ/mol NIST
BasG 589.70 kJ/mol NIST
ΔcH°gas [-516.30; -71.55] kJ/mol Show Hide
ΔcH°gas -71.55 ± 0.71 kJ/mol NIST
ΔcH°gas -516.30 kJ/mol NIST
μ 1.60 debye KDB
εr 1.01 NCMS SOLV-DB
ΔfG° -662.80 kJ/mol KDB
ΔfH°gas [-697.50; -690.80] kJ/mol Show Hide
ΔfH°gas -695.85 ± 0.56 kJ/mol Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value
ΔfH°gas -697.50 kJ/mol KDB
ΔfH°gas -690.80 kJ/mol NIST
ΔfH°gas -695.40 ± 2.70 kJ/mol NIST
ΔfusH° 4.06 kJ/mol Joback Calculated Property
ΔvapH° 16.78 kJ/mol NCMS SOLV-DB
IE [13.80; 15.50] eV Show Hide
IE 13.86 eV NIST
IE 13.90 eV NIST
IE 14.19 ± 0.02 eV NIST
IE 13.86 eV NIST
IE 13.80 eV NIST
IE 13.84 eV NIST
IE Outlier 15.50 eV NIST
IE 14.80 eV NIST
IE 14.80 ± 0.05 eV NIST
IE 14.80 eV NIST
logPoct/wat 0.640 NCMS SOLV-DB
McVol 30.260 ml/mol McGowan Calculated Property
Pc [4752.14; 5035.85] kPa Show Hide
Pc 4800.00 kPa IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Pc 4752.14 kPa PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc 4858.00 kPa KDB
Pc 4828.00 ± 25.00 kPa NIST
Pc 4816.20 ± 2.00 kPa NIST
Pc Outlier 5035.85 ± 10.13 kPa NIST
Pc 4836.12 ± 6.89 kPa NIST
ρc [516.00; 527.90] kg/m3 Show Hide
ρc 527.20 ± 2.80 kg/m3 NIST
ρc 527.90 ± 4.90 kg/m3 NIST
ρc 525.80 ± 2.80 kg/m3 NIST
ρc 527.20 ± 0.70 kg/m3 NIST
ρc Outlier 516.00 kg/m3 NIST
ρc 525.08 ± 3.22 kg/m3 NIST
Inp [202.00; 202.00]   Show Hide
Inp 202.00 NIST
Inp 202.00 NIST
Inp 202.00 NIST
S°liquid 151.04 J/mol×K NIST
Tboil [188.70; 191.15] K Show Hide
Tboil 191.00 K KDB
Tboil 191.15 K NCMS SOLV-DB
Tboil 188.70 K NIST
Tboil 191.00 ± 0.05 K NIST
Tboil 189.00 ± 0.30 K NIST
Tboil 189.00 ± 0.50 K NIST
Tc [298.95; 299.45] K Show Hide
Tc 299.00 K IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Tc 299.05 K PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc 299.30 K KDB
Tc 299.06 ± 0.30 K NIST
Tc 299.30 ± 0.20 K NIST
Tc 299.01 ± 0.02 K NIST
Tc 298.95 ± 0.10 K NIST
Tc Outlier 299.45 ± 0.10 K NIST
Tc 299.07 K NIST
Tc 299.07 ± 0.16 K NIST
Tfus [110.20; 117.97] K Show Hide
Tfus 115.60 K Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus 117.97 K KDB
Tfus 117.95 K NCMS SOLV-DB
Tfus 110.20 ± 0.20 K NIST
Tfus 117.97 ± 0.05 K NIST
Tfus 113.00 ± 0.50 K NIST
Tfus 117.97 ± 0.05 K NIST
Ttriple [117.97; 118.02] K Show Hide
Ttriple 118.02 K Solid Liquid Equilibria for the CO2 + R23 and N2O + R23 Systems
Ttriple 117.98 K Staveley, Lobo and Calado (1981), triple points Compiled value
Ttriple 117.97 ± 0.02 K NIST
Ttriple 117.97 ± 0.02 K NIST
Vc [0.133; 0.135] m3/kmol Show Hide
Vc 0.135 m3/kmol IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Vc 0.133 m3/kmol PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc 0.133 m3/kmol KDB
Zc [0.2596370; 0.2600000]   Show Hide
Zc 0.2600000 IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 10 Compiled value
Zc 0.2596370 KDB

Cheméo can also estimate Log10 of Water solubility in mol/l for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,liquid 86.44 J/mol×K 190.97 NIST
η 0.0001670 Pa×s 298.15 NCMS SOLV-DB
ΔfusH [4.06; 4.06] kJ/mol [117.97; 118.00] Show Hide
ΔfusH 4.06 kJ/mol 117.97 NIST
ΔfusH 4.06 kJ/mol 117.97 NIST
ΔfusH 4.06 kJ/mol 118.00 NIST
ΔfusH 4.06 kJ/mol 118.00 NIST
ΔsubH 25.60 kJ/mol 103.50 NIST
ΔvapH [16.71; 18.10] kJ/mol [164.00; 248.00] Show Hide
ΔvapH 18.10 kJ/mol 164.00 NIST
ΔvapH 18.00 kJ/mol 169.00 NIST
ΔvapH 18.00 kJ/mol 169.00 NIST
ΔvapH 16.71 kJ/mol 190.97 NIST
ΔvapH 16.71 kJ/mol 190.97 NIST
ΔvapH 16.80 kJ/mol 248.00 NIST
Pvap [34.35; 4709.30] kPa [173.86; 298.15] Show Hide
Pvap 34.35 kPa 173.86 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 41.46 kPa 177.11 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 62.33 kPa 183.19 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 62.29 kPa 183.20 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 85.40 kPa 188.31 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 113.55 kPa 193.19 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 115.20 kPa 193.28 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 153.30 kPa 198.66 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 307.80 kPa 212.84 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 591.50 kPa 228.50 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 600.35 kPa 228.83 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 707.03 kPa 233.16 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 1028.00 kPa 243.76 Vapor-Liquid Equilibrium Data for the Ethane + Trifluoromethane System at Temperatures from (188.31 to 243.76) K
Pvap 2176.00 kPa 267.81 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 2497.00 kPa 272.86 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 2502.79 kPa 273.25 Vapor-liquid and vapor-liquid-liquid equilibrium measurements and correlation of the binary mixtures 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) p (tetrafluoromethane (R14), trifluoromethane (R23), octafluoropropane (R218), nitrogen (R728) and argon (R740)) and ethane (R170) p trifluoromethane (R23)
Pvap 2881.00 kPa 277.90 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 3269.00 kPa 282.96 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 3242.00 kPa 283.15 (Vapour + liquid) equilibria of the {trifluoromethane (HFC-23) + propane} and {trifluoromethane (HFC-23) + n-butane} systems
Pvap 3246.00 kPa 283.15 (Vapour + liquid) equilibria of the {trifluoromethane (HFC-23) + propane} and {trifluoromethane (HFC-23) + n-butane} systems
Pvap 3707.00 kPa 287.99 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 4084.00 kPa 292.02 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 4180.00 kPa 293.04 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 4162.00 kPa 293.15 (Vapour + liquid) equilibria of the {trifluoromethane (HFC-23) + propane} and {trifluoromethane (HFC-23) + n-butane} systems
Pvap 4158.00 kPa 293.15 (Vapour + liquid) equilibria of the {trifluoromethane (HFC-23) + propane} and {trifluoromethane (HFC-23) + n-butane} systems
Pvap 4171.70 kPa 293.18 Experimental determination of the critical loci for R-23 + (npropane or n-hexane) and R-116 + n-propane binary mixtures
Pvap 4605.00 kPa 297.07 Isothermal (vapour + liquid) equilibrium data for binary systems of (n-hexane + CO2 or CHF3)
Pvap 4709.30 kPa 298.15 Experimental determination of the critical loci for R-23 + (npropane or n-hexane) and R-116 + n-propane binary mixtures
n0 1.21500 298.15 NCMS SOLV-DB
ρl 1246.00 kg/m3 239.00 KDB
ΔfusS [34.40; 34.40] J/mol×K [117.97; 117.97] Show Hide
ΔfusS 34.40 J/mol×K 117.97 NIST
ΔfusS 34.40 J/mol×K 117.97 NIST
γ [3.00e-05; 0.01] N/m [200.20; 298.15] Show Hide
γ 0.01 N/m 200.20 KDB
γ 3.00e-05 N/m 298.15 NCMS SOLV-DB
ΔvapS [87.50; 87.50] J/mol×K [190.97; 190.97] Show Hide
ΔvapS 87.50 J/mol×K 190.97 NIST
ΔvapS 87.50 J/mol×K 190.97 NIST

Correlations

Property Value Unit Temperature (K) Source
Cp,gas [50.99; 95.01] J/mol×K [298.00; 1200.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,gas in J/mol×K, T in K
Coefficient A6.46369e+00
Coefficient B1.85433e+02
Coefficient C-1.40887e+02
Coefficient D3.98492e+01
Coefficient E6.45140e-02
ReferenceChase, 1998
CommentF=-705.8450, G=218.4579, H=-697.0544; Data last reviewed in June, 1969
Temperature range, min.298.00
Temperature range, max.1200.00
Cp,gas 50.99 J/mol×K 298.00 Calculated Property
Cp,gas 60.89 J/mol×K 398.22 Calculated Property
Cp,gas 69.08 J/mol×K 498.44 Calculated Property
Cp,gas 75.71 J/mol×K 598.67 Calculated Property
Cp,gas 80.98 J/mol×K 698.89 Calculated Property
Cp,gas 85.11 J/mol×K 799.11 Calculated Property
Cp,gas 88.35 J/mol×K 899.33 Calculated Property
Cp,gas 90.91 J/mol×K 999.56 Calculated Property
Cp,gas 93.06 J/mol×K 1099.78 Calculated Property
Cp,gas 95.01 J/mol×K 1200.00 Calculated Property
Cp,gas [94.87; 107.42] J/mol×K [1200.00; 6000.00] NIST Show Hide
EquationY = A + B·t + C·t² + D·t³ + E/t², t = T/1000
Y is Cp,gas in J/mol×K, T in K
Coefficient A1.00535e+02
Coefficient B3.93663e+00
Coefficient C-7.57020e-01
Coefficient D5.04540e-02
Coefficient E-1.35168e+01
ReferenceChase, 1998
CommentF=-759.4546, G=336.4170, H=-697.0544; Data last reviewed in June, 1969
Temperature range, min.1200.00
Temperature range, max.6000.00
Cp,gas 94.87 J/mol×K 1200.00 Calculated Property
Cp,gas 100.85 J/mol×K 1733.33 Calculated Property
Cp,gas 103.53 J/mol×K 2266.67 Calculated Property
Cp,gas 105.01 J/mol×K 2800.00 Calculated Property
Cp,gas 105.90 J/mol×K 3333.33 Calculated Property
Cp,gas 106.45 J/mol×K 3866.67 Calculated Property
Cp,gas 106.80 J/mol×K 4400.00 Calculated Property
Cp,gas 107.03 J/mol×K 4933.33 Calculated Property
Cp,gas 107.22 J/mol×K 5466.67 Calculated Property
Cp,gas 107.42 J/mol×K 6000.00 Calculated Property
Property Value Unit Temperature (K) Source
Pvap [0.05; 4839.80] kPa [117.97; 299.00] KDB Vapor Pressure Data Show Hide
Equationln(Y) = A + B/T + C·ln(T) + D·T² + E/T²
Y is Pvap in kPa, T in K
Coefficient A7.39171e+01
Coefficient B-3.58622e+03
Coefficient C-9.81412e+00
Coefficient D2.80359e-05
Coefficient E0.00000e+00
Temperature range, min.117.97
Temperature range, max.299.00
Pvap 0.05 kPa 117.97 Calculated Property
Pvap 1.12 kPa 138.08 Calculated Property
Pvap 9.51 kPa 158.20 Calculated Property
Pvap 45.82 kPa 178.31 Calculated Property
Pvap 152.46 kPa 198.43 Calculated Property
Pvap 394.61 kPa 218.54 Calculated Property
Pvap 858.05 kPa 238.66 Calculated Property
Pvap 1650.89 kPa 258.77 Calculated Property
Pvap 2913.63 kPa 278.89 Calculated Property
Pvap 4839.80 kPa 299.00 Calculated Property
Pvap [2.72; 102.54] kPa [145.36; 191.19] NIST Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.44038e+01
Coefficient B-1.65346e+03
Coefficient C-2.20130e+01
ReferenceValentine, Brodale, et al., 1962
CommentCoefficents calculated by NIST from author's data.
Temperature range, min.145.36
Temperature range, max.191.19
Pvap 2.72 kPa 145.36 Calculated Property
Pvap 4.62 kPa 150.45 Calculated Property
Pvap 7.55 kPa 155.54 Calculated Property
Pvap 11.89 kPa 160.64 Calculated Property
Pvap 18.15 kPa 165.73 Calculated Property
Pvap 26.91 kPa 170.82 Calculated Property
Pvap 38.86 kPa 175.91 Calculated Property
Pvap 54.83 kPa 181.01 Calculated Property
Pvap 75.71 kPa 186.10 Calculated Property
Pvap 102.54 kPa 191.19 Calculated Property
Pvap [2.72; 102.54] kPa [145.36; 191.19] NIST Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.44038e+01
Coefficient B-1.65346e+03
Coefficient C-2.20130e+01
ReferenceValentine, Brodale, et al., 1962, 2
CommentCoefficents calculated by NIST from author's data.
Temperature range, min.145.36
Temperature range, max.191.19
Pvap 2.72 kPa 145.36 Calculated Property
Pvap 4.62 kPa 150.45 Calculated Property
Pvap 7.55 kPa 155.54 Calculated Property
Pvap 11.89 kPa 160.64 Calculated Property
Pvap 18.15 kPa 165.73 Calculated Property
Pvap 26.91 kPa 170.82 Calculated Property
Pvap 38.86 kPa 175.91 Calculated Property
Pvap 54.83 kPa 181.01 Calculated Property
Pvap 75.71 kPa 186.10 Calculated Property
Pvap 102.54 kPa 191.19 Calculated Property

Similar Compounds

Difluoromethyl radical. Methane, difluoro-. Fluoromethylene. Trifluoromethyl radical. Methane, chlorodifluoro-. Methane, bromodifluoro-. Tetrafluoromethane. Fluoromethyl radical. Methylene, difluoro-. Chlorofluoromethyl radical. Formyl fluoride. Methyl fluoride. Methane, trifluoroiodo-. Chlorotrifluoromethane. Bromotrifluoromethane.

Find more compounds similar to Methane, trifluoro-.

Mixtures

Find more mixtures with Methane, trifluoro-.

Sources

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