Chemical Properties of Octadecanoic acid (CAS 57-11-4)

Octadecanoic acid

InChI
InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
InChI Key
QIQXTHQIDYTFRH-UHFFFAOYSA-N
Formula
C18H36O2
SMILES
CCCCCCCCCCCCCCCCCC(=O)O
Molecular Weight1
284.48
CAS
57-11-4
Other Names
  • 1-Heptadecanecarboxylic acid
  • Adeka Fatty Acid SA 910
  • Barolub FTA
  • Century 1210
  • Century 1220
  • Century 1224
  • Century 1230
  • Century 1240
  • Cetylacetic acid
  • Dar-chem 14
  • Edenor C18
  • Emersol 120
  • Emersol 132
  • Emersol 150
  • Emersol 153
  • Emersol 6349
  • Formula 300
  • Glycon DP
  • Glycon S-70
  • Glycon S-80
  • Glycon S-90
  • Glycon TP
  • Groco 54
  • Groco 55
  • Groco 55L
  • Groco 58
  • Groco 59
  • Heptadecanecarboxylic acid
  • Humko Industrene R
  • Hy-phi 1199
  • Hy-phi 1205
  • Hy-phi 1303
  • Hy-phi 1401
  • Hydrofol 1895
  • Hydrofol Acid 150
  • Hydrofol Acid 1895
  • Hydrofol acid 1655
  • Hydrofol acid 1855
  • Hystrene 4516
  • Hystrene 5016
  • Hystrene 7018
  • Hystrene 7018 FG
  • Hystrene 80
  • Hystrene 9718
  • Hystrene 9718 NF FG
  • Hystrene S-97
  • Hystrene T-70
  • Industrene 4518
  • Industrene 5016
  • Industrene 7018 FG
  • Industrene 8718
  • Industrene 9018
  • Industrene R
  • Kam 1000
  • Kam 2000
  • Kam 3000
  • Kiri stearic acid
  • Loxiol G 20
  • Lunac S 20
  • Lunac S 40
  • N-STEARIC ACID
  • NAA 173
  • Neo-Fat 18
  • Neo-Fat 18-53
  • Neo-Fat 18-54
  • Neo-Fat 18-55
  • Neo-Fat 18-59
  • Neo-Fat 18-S
  • Neo-fat 18-61
  • Octadecanoic acid (stearic acid)
  • PD 185
  • Pearl stearic
  • Prifac 2918
  • Pristerene 4904
  • Promulsin
  • Proviscol wax
  • SA 400 (fatty acid)
  • Stearex
  • Stearex Beads
  • Stearophanic acid
  • Steric acid
  • Tegostearic 254
  • Tegostearic 255
  • Tegostearic 272
  • Tsubaki
  • Vanicol
  • Vis-Plus
  • WO 2 (fatty acid)
  • n-Octadecylic acid
  • n-octadecanoic acid
  • stearic acid
Cheméo is a service of Céondo GmbH, since 2007, we provide simulation, modelling and software development services for the industry. Do not hesitate to contact us for your projects.

Physical Properties

Property Value Unit Source
ω [0.9802; 1.0394]   Show Hide
ω 0.9802 PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω 1.0394 ChemSep v8.3 pure component data Compiled value
ΔcH°liquid [-11336.80; -11280.10] kJ/mol Show Hide
ΔcH°liquid -11280.10 ± 1.90 kJ/mol NIST
ΔcH°liquid -11336.80 ± 2.10 kJ/mol NIST
ΔcH°solid [-11316.00; -11271.00] kJ/mol Show Hide
ΔcH°solid -11290.79 kJ/mol NIST
ΔcH°solid -11271.00 ± 13.00 kJ/mol NIST
ΔcH°solid -11316.00 ± 11.00 kJ/mol NIST
ΔcH°solid -11298.00 kJ/mol NIST
μ 1.67 debye ChemSep v8.3 pure component data Compiled value
ΔfG° -244.00 kJ/mol ChemSep v8.3 pure component data Compiled value
ΔfH°gas [-819.10; -764.00] kJ/mol Show Hide
ΔfH°gas -764.00 kJ/mol ChemSep v8.3 pure component data Compiled value
ΔfH°gas -819.10 ± 5.50 kJ/mol NIST
ΔfH°liquid -947.20 ± 2.20 kJ/mol NIST
ΔfH°solid -912.00 ± 11.00 kJ/mol NIST
ΔfusH° 61.20 kJ/mol Solid-Liquid Equilibrium of Binary Systems Containing Fatty Acids and Fatty Alcohols Using Differential Scanning Calorimetry
ΔsubH° 204.00 ± 9.00 kJ/mol NIST
ΔvapH° 125.48 kJ/mol Relay (1.0) Calculated Property
IE 10.05 eV Relay (1.0) Calculated Property
log10WS -5.68 Aq. Solubility Prediction
logPoct/wat 6.333 Crippen Calculated Property
McVol 271.920 ml/mol McGowan Calculated Property
Pc [1326.58; 1429.70] kPa Show Hide
Pc 1429.70 kPa PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc 1330.00 kPa ChemSep v8.3 pure component data Compiled value
Pc 1326.58 ± 85.00 kPa NIST
Ptriple [4.27e-06; 7.24e-06] kPa Show Hide
Ptriple 7.24e-06 kPa ChemSep v8.3 pure component data Compiled value
Ptriple 4.27e-06 ± 2.00e-06 kPa NIST
Inp [350.90; 2200.00]   Show Hide
Inp 2179.00 NIST
Inp 2161.00 NIST
Inp 2192.00 NIST
Inp 2170.00 NIST
Inp 2170.00 NIST
Inp 2188.00 NIST
Inp 2158.00 NIST
Inp 2162.00 NIST
Inp 2187.00 NIST
Inp 2178.00 NIST
Inp 2180.00 NIST
Inp 2180.00 NIST
Inp 2166.00 NIST
Inp 2172.00 NIST
Inp 2174.00 NIST
Inp 2157.00 NIST
Inp 2172.00 NIST
Inp 2172.00 NIST
Inp 2173.00 NIST
Inp 2172.00 NIST
Inp 2164.00 NIST
Inp 2172.00 NIST
Inp 2178.00 NIST
Inp 2139.00 NIST
Inp 2142.00 NIST
Inp 2138.54 NIST
Inp 2175.00 NIST
Inp 2180.00 NIST
Inp 2200.00 NIST
Inp 2137.00 NIST
Inp 2177.00 NIST
Inp 2177.00 NIST
Inp 2159.00 NIST
Inp 2161.00 NIST
Inp 2143.00 NIST
Inp 2153.00 NIST
Inp 2163.00 NIST
Inp 2137.00 NIST
Inp 2177.00 NIST
Inp 2177.00 NIST
Inp 2173.00 NIST
Inp 2169.00 NIST
Inp 2167.50 NIST
Inp 2180.00 NIST
Inp 2169.00 NIST
Inp 2157.00 NIST
Inp 2158.00 NIST
Inp 2160.00 NIST
Inp 2162.00 NIST
Inp 2181.00 NIST
Inp 2178.00 NIST
Inp 2172.00 NIST
Inp 2180.00 NIST
Inp 2170.00 NIST
Inp 2137.00 NIST
Inp 2152.00 NIST
Inp 2168.00 NIST
Inp 2142.00 NIST
Inp 2155.00 NIST
Inp 2178.00 NIST
Inp 2161.00 NIST
Inp 2155.00 NIST
Inp 2180.00 NIST
Inp 2155.00 NIST
Inp 2200.00 NIST
Inp 2187.00 NIST
Inp 2139.00 NIST
Inp 2137.00 NIST
Inp 2162.00 NIST
Inp 2164.00 NIST
Inp 2172.00 NIST
Inp 2180.00 NIST
Inp 2173.00 NIST
Inp 2177.00 NIST
Inp 2140.00 NIST
Inp 2174.00 NIST
Inp Outlier 352.98 NIST
Inp Outlier 366.90 NIST
Inp Outlier 350.90 NIST
Inp Outlier 351.12 NIST
Inp Outlier 352.98 NIST
Inp 2177.00 NIST
Inp 2153.00 NIST
Inp 2173.00 NIST
Inp 2157.00 NIST
Inp 2178.00 NIST
Inp 2152.00 NIST
Inp 2180.00 NIST
Ip [3090.00; 3181.00]   Show Hide
Ip 3181.00 NIST
Ip 3136.00 NIST
Ip 3132.00 NIST
Ip 3120.00 NIST
Ip 3130.00 NIST
Ip 3104.00 NIST
Ip 3181.00 NIST
Ip 3090.00 NIST
Ip 3181.00 NIST
S°solid,1 bar 435.60 J/mol×K NIST
Tboil [631.15; 648.35] K Show Hide
Tboil 648.35 K ChemSep v8.3 pure component data Compiled value
Tboil 634.20 K NIST
Tboil 631.15 ± 5.00 K NIST
Tc [803.00; 822.00] K Show Hide
Tc 822.00 K PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc 803.00 K ChemSep v8.3 pure component data Compiled value
Tc 805.09 ± 3.50 K NIST
Tfus [326.15; 346.00] K Show Hide
Tfus 343.67 K Measurement and PC-SAFT modeling of solid-liquid equilibrium of deep eutectic solvents of quaternary ammonium chlorides and carboxylic acids
Tfus 343.63 K Solid-liquid phase equilibrium diagrams of binary mixtures containing fatty acids, fatty alcohol compounds and tripalmitin using differential scanning calorimetry
Tfus 343.98 K The solid liquid phase diagrams of binary mixtures of even saturated fatty acids differing by six carbon atoms
Tfus Outlier 326.15 K Preparation of paraffin and fatty acid phase changing nanoemulsions for heat transfer
Tfus Outlier 327.17 K Thermal analysis and quantitative characterization of compatibility between diflunisal and lipid excipients as raw materials for development of solid lipid nanoparticles
Tfus 341.55 K Prediction of the properties of eutectic fatty acid phase change materials
Tfus 343.10 K Solid Liquid Equilibria in the Binary Systems of Saturated Fatty Acids or Triglycerides (C12 to C18) + Hexadecane
Tfus 341.91 K Solid-Liquid Equilibrium of Binary Fatty Acid Mixtures
Tfus 342.90 K Study of the Effect of Pressure on Melting Behavior of Saturated Fatty Acids in Liquid or Supercritical Carbon Dioxide
Tfus 342.45 K Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus 342.75 K ChemSep v8.3 pure component data Compiled value
Tfus 342.58 K Aq. Solubility Prediction
Tfus 342.30 ± 0.20 K NIST
Tfus 342.50 ± 0.20 K NIST
Tfus 339.35 ± 0.20 K NIST
Tfus 342.75 ± 0.30 K NIST
Tfus 346.00 ± 2.00 K NIST
Tfus 339.30 ± 0.30 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 339.30 ± 0.40 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 341.00 ± 2.00 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus 342.60 ± 0.05 K NIST
Tfus 342.45 ± 0.30 K NIST
Tfus 342.45 ± 0.30 K NIST
Tfus 342.40 ± 0.60 K NIST
Tfus 341.70 ± 0.80 K NIST
Tfus 342.00 ± 2.00 K NIST
Tfus Outlier 332.00 ± 2.00 K NIST
Tfus 342.50 ± 0.50 K NIST
Tfus 342.60 ± 0.80 K NIST
Tfus 340.85 ± 1.00 K NIST
Tfus 341.53 ± 0.30 K NIST
Tfus 337.15 ± 0.50 K NIST
Tfus 342.00 ± 3.00 K NIST
Ttriple [325.66; 344.08] K Show Hide
Ttriple Outlier 325.66 K High latent heat stearic acid impregnated in expanded graphite
Ttriple 344.08 K Solubility Measurement of Lauric, Palmitic, and Stearic Acids in Ethanol, n-Propanol, and 2-Propanol Using Differential Scanning Calorimetry
Ttriple 342.75 K ChemSep v8.3 pure component data Compiled value
Ttriple 342.49 ± 0.02 K NIST
Ttriple 341.85 ± 0.50 K NIST
Ttriple 342.65 ± 0.01 K NIST
Ttriple 342.49 ± 0.02 K NIST
Ttriple 342.65 ± 0.01 K NIST
UQi 10.71 ChemSep v8.3 pure component data Compiled value
URi 12.99 ChemSep v8.3 pure component data Compiled value
Vc [1.057; 1.140] m3/kmol Show Hide
Vc 1.057 m3/kmol PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc 1.140 m3/kmol ChemSep v8.3 pure component data Compiled value
Zc 0.2270000 ChemSep v8.3 pure component data Compiled value

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,solid [501.55; 561.90] J/mol×K [298.15; 298.15] Show Hide
Cp,solid 501.55 J/mol×K 298.15 NIST
Cp,solid 561.90 J/mol×K 298.15 NIST
Csat [465.40; 590.20] J/mol×K [286.15; 321.15] Show Hide
Csat 465.40 J/mol×K 286.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 478.10 J/mol×K 290.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 490.40 J/mol×K 294.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 503.00 J/mol×K 298.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 515.30 J/mol×K 302.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 528.60 J/mol×K 306.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 543.00 J/mol×K 310.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 558.60 J/mol×K 314.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 575.80 J/mol×K 318.15 Interpretation of the global heat of melting in eutectic binary systems
Csat 590.20 J/mol×K 321.15 Interpretation of the global heat of melting in eutectic binary systems
ΔfusH [50.93; 68.45] kJ/mol [326.10; 344.10] Show Hide
ΔfusH 64.64 kJ/mol 326.10 NIST
ΔfusH 60.40 kJ/mol 338.30 NIST
ΔfusH 50.93 kJ/mol 340.20 NIST
ΔfusH 61.21 kJ/mol 342.50 NIST
ΔfusH 61.21 kJ/mol 342.50 NIST
ΔfusH 68.45 kJ/mol 342.65 NIST
ΔfusH 68.45 kJ/mol 342.65 NIST
ΔfusH 61.30 kJ/mol 342.75 NIST
ΔfusH 63.20 kJ/mol 342.80 NIST
ΔfusH 57.80 kJ/mol 344.10 NIST
ΔsubH [158.00; 167.00] kJ/mol [300.00; 335.50] Show Hide
ΔsubH 158.50 kJ/mol 300.00 NIST
ΔsubH 158.00 kJ/mol 307.50 NIST
ΔsubH 167.00 ± 4.20 kJ/mol 330.89 NIST
ΔsubH 166.50 ± 4.20 kJ/mol 335.50 NIST
ΔsubH 166.50 ± 4.20 kJ/mol 335.50 NIST
ΔvapH [79.80; 132.60] kJ/mol [298.00; 553.00] Show Hide
ΔvapH 132.60 kJ/mol 298.00 Vapor Pressures and Vaporization, Sublimation, and Fusion Enthalpies of Some Fatty Acids
ΔvapH 118.90 ± 2.00 kJ/mol 377.50 NIST
ΔvapH 124.30 kJ/mol 382.00 NIST
ΔvapH 79.80 kJ/mol 515.00 NIST
ΔvapH 100.60 kJ/mol 553.00 NIST
Pvap [1.33; 9.33] kPa [501.30; 553.20] Show Hide
Pvap 1.33 kPa 501.30 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 2.67 kPa 519.10 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 4.00 kPa 528.90 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 5.33 kPa 535.90 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 6.67 kPa 543.70 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 8.00 kPa 548.70 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
Pvap 9.33 kPa 553.20 Vapor pressure data for fatty acids obtained using an adaptation of the DSC technique
ΔfusS [178.80; 1998.00] J/mol×K [326.10; 342.75] Show Hide
ΔfusS 198.00 J/mol×K 326.10 NIST
ΔfusS 1998.00 J/mol×K 342.65 NIST
ΔfusS 1998.00 J/mol×K 342.65 NIST
ΔfusS 178.80 J/mol×K 342.75 NIST

Correlations

Property Value Unit Temperature (K) Source
Cp,gas [437.91; 1100.06] J/mol×K [300.00; 1500.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A + B·((C/T)/sinh(C/T))² + D·((E/T)/cosh(E/T))²
Y is Cp,gas in J/mol×K, T in K
Coefficient A3.26200e+02
Coefficient B9.47300e+02
Coefficient C1.62600e+03
Coefficient D6.41540e+02
Coefficient E7.43100e+02
Temperature range, min.300.00
Temperature range, max.1500.00
Cp,gas 437.91 J/mol×K 300.00 Calculated Property
Cp,gas 584.98 J/mol×K 433.33 Calculated Property
Cp,gas 705.76 J/mol×K 566.67 Calculated Property
Cp,gas 802.38 J/mol×K 700.00 Calculated Property
Cp,gas 880.99 J/mol×K 833.33 Calculated Property
Cp,gas 944.92 J/mol×K 966.67 Calculated Property
Cp,gas 996.68 J/mol×K 1100.00 Calculated Property
Cp,gas 1038.52 J/mol×K 1233.33 Calculated Property
Cp,gas 1072.43 J/mol×K 1366.67 Calculated Property
Cp,gas 1100.06 J/mol×K 1500.00 Calculated Property
Property Value Unit Temperature (K) Source
Cp,liquid [639.94; 1216.03] J/mol×K [342.75; 648.35] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A + B·T + C·T² + D·T³ + E·T⁴
Y is Cp,liquid in J/mol×K, T in K
Coefficient A4.10190e+02
Coefficient B2.80960e-02
Coefficient C1.87370e-03
Coefficient D0.00000e+00
Coefficient E0.00000e+00
Temperature range, min.342.75
Temperature range, max.648.35
Cp,liquid 639.94 J/mol×K 342.75 Calculated Property
Cp,liquid 686.67 J/mol×K 376.71 Calculated Property
Cp,liquid 737.71 J/mol×K 410.66 Calculated Property
Cp,liquid 793.08 J/mol×K 444.62 Calculated Property
Cp,liquid 852.77 J/mol×K 478.57 Calculated Property
Cp,liquid 916.78 J/mol×K 512.53 Calculated Property
Cp,liquid 985.11 J/mol×K 546.48 Calculated Property
Cp,liquid 1057.76 J/mol×K 580.44 Calculated Property
Cp,liquid 1134.74 J/mol×K 614.39 Calculated Property
Cp,liquid 1216.03 J/mol×K 648.35 Calculated Property
Property Value Unit Temperature (K) Source
η [0.0096281; 0.0002892] Pa×s [342.75; 648.35] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = exp(A + B/T + C·ln(T) + D·T^E)
Y is η in Pa×s, T in K
Coefficient A-2.33310e+01
Coefficient B3.27430e+03
Coefficient C1.56500e+00
Coefficient D0.00000e+00
Coefficient E0.00000e+00
Temperature range, min.342.75
Temperature range, max.648.35
η 0.0096281 Pa×s 342.75 Calculated Property
η 0.0047182 Pa×s 376.71 Calculated Property
η 0.0026322 Pa×s 410.66 Calculated Property
η 0.0016213 Pa×s 444.62 Calculated Property
η 0.0010788 Pa×s 478.57 Calculated Property
η 0.0007633 Pa×s 512.53 Calculated Property
η 0.0005674 Pa×s 546.48 Calculated Property
η 0.0004392 Pa×s 580.44 Calculated Property
η 0.0003515 Pa×s 614.39 Calculated Property
η 0.0002892 Pa×s 648.35 Calculated Property
Property Value Unit Temperature (K) Source
ΔvapH [122.96; 0.00] kJ/mol [342.75; 803.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc
Y is ΔvapH in kJ/mol, T in K
Coefficient A1.38910e+02
Coefficient B-8.89330e-01
Coefficient C3.63670e+00
Coefficient D-2.43560e+00
Coefficient E0.00000e+00
Critical temperature, Tc (K)8.03000e+02
Temperature range, min.342.75
Temperature range, max.803.00
ΔvapH 122.96 kJ/mol 342.75 Calculated Property
ΔvapH 112.82 kJ/mol 393.89 Calculated Property
ΔvapH 102.35 kJ/mol 445.03 Calculated Property
ΔvapH 92.04 kJ/mol 496.17 Calculated Property
ΔvapH 82.25 kJ/mol 547.31 Calculated Property
ΔvapH 73.23 kJ/mol 598.44 Calculated Property
ΔvapH 65.01 kJ/mol 649.58 Calculated Property
ΔvapH 57.33 kJ/mol 700.72 Calculated Property
ΔvapH 48.71 kJ/mol 751.86 Calculated Property
ΔvapH 0.00 kJ/mol 803.00 Calculated Property
Property Value Unit Temperature (K) Source
Pvap [1.33; 202.63] kPa [501.40; 675.67] The Yaws Handbook of Vapor Pressure Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.62589e+01
Coefficient B-6.06525e+03
Coefficient C-1.21641e+02
Temperature range, min.501.40
Temperature range, max.675.67
Pvap 1.33 kPa 501.40 Calculated Property
Pvap 2.89 kPa 520.76 Calculated Property
Pvap 5.85 kPa 540.13 Calculated Property
Pvap 11.10 kPa 559.49 Calculated Property
Pvap 19.95 kPa 578.85 Calculated Property
Pvap 34.20 kPa 598.22 Calculated Property
Pvap 56.21 kPa 617.58 Calculated Property
Pvap 89.00 kPa 636.94 Calculated Property
Pvap 136.31 kPa 656.31 Calculated Property
Pvap 202.63 kPa 675.67 Calculated Property
Pvap [7.25e-06; 1331.10] kPa [342.75; 803.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = exp(A + B/T + C·ln(T) + D·T^E)
Y is Pvap in kPa, T in K
Coefficient A2.07822e+02
Coefficient B-2.36600e+04
Coefficient C-2.58070e+01
Coefficient D5.38010e-18
Coefficient E6.00000e+00
Temperature range, min.342.75
Temperature range, max.803.00
Pvap 7.25e-06 kPa 342.75 Calculated Property
Pvap 1.58e-03 kPa 393.89 Calculated Property
Pvap 0.07 kPa 445.03 Calculated Property
Pvap 1.04 kPa 496.17 Calculated Property
Pvap 7.57 kPa 547.31 Calculated Property
Pvap 33.62 kPa 598.44 Calculated Property
Pvap 106.53 kPa 649.58 Calculated Property
Pvap 271.41 kPa 700.72 Calculated Property
Pvap 612.39 kPa 751.86 Calculated Property
Pvap 1331.10 kPa 803.00 Calculated Property
Pvap [5.79e-05; 1280.78] kPa [342.75; 799.00] 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 A1.29855e+02
Coefficient B-1.68057e+04
Coefficient C-1.56000e+01
Coefficient D4.06439e-06
Coefficient E0.00000e+00
Temperature range, min.342.75
Temperature range, max.799.00
Pvap 5.79e-05 kPa 342.75 Calculated Property
Pvap 4.34e-03 kPa 393.44 Calculated Property
Pvap 0.10 kPa 444.14 Calculated Property
Pvap 1.11 kPa 494.83 Calculated Property
Pvap 7.03 kPa 545.53 Calculated Property
Pvap 30.53 kPa 596.22 Calculated Property
Pvap 100.54 kPa 646.92 Calculated Property
Pvap 270.02 kPa 697.61 Calculated Property
Pvap 622.71 kPa 748.31 Calculated Property
Pvap 1280.78 kPa 799.00 Calculated Property
Pvap [0.13; 100.89] kPa [446.90; 643.00] NIST Show Hide
Equationln(Y) = A + B/(T + C)
Y is Pvap in kPa, T in K
Coefficient A1.77885e+01
Coefficient B-7.70936e+03
Coefficient C-5.78250e+01
ReferenceStull, 1947
CommentCoefficents calculated by NIST from author's data.
Temperature range, min.446.90
Temperature range, max.643.00
Pvap 0.13 kPa 446.90 Calculated Property
Pvap 0.38 kPa 468.69 Calculated Property
Pvap 0.97 kPa 490.48 Calculated Property
Pvap 2.28 kPa 512.27 Calculated Property
Pvap 4.95 kPa 534.06 Calculated Property
Pvap 10.06 kPa 555.84 Calculated Property
Pvap 19.25 kPa 577.63 Calculated Property
Pvap 34.95 kPa 599.42 Calculated Property
Pvap 60.61 kPa 621.21 Calculated Property
Pvap 100.89 kPa 643.00 Calculated Property
Property Value Unit Temperature (K) Source
ρl [846.00; 249.54] kg/m3 [342.75; 803.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A / B^(1 + (1 − T/C)^D)
Y is ρl in kg/m3, T in K
Coefficient A5.96378e+01
Coefficient B2.38990e-01
Coefficient C8.03000e+02
Coefficient D2.85710e-01
Temperature range, min.342.75
Temperature range, max.803.00
ρl 846.00 kg/m3 342.75 Calculated Property
ρl 812.50 kg/m3 393.89 Calculated Property
ρl 777.38 kg/m3 445.03 Calculated Property
ρl 740.24 kg/m3 496.17 Calculated Property
ρl 700.49 kg/m3 547.31 Calculated Property
ρl 657.22 kg/m3 598.44 Calculated Property
ρl 608.87 kg/m3 649.58 Calculated Property
ρl 552.27 kg/m3 700.72 Calculated Property
ρl 478.81 kg/m3 751.86 Calculated Property
ρl 249.54 kg/m3 803.00 Calculated Property
Property Value Unit Temperature (K) Source
γ [0.03; 0.00] N/m [342.75; 803.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc
Y is γ in N/m, T in K
Coefficient A5.46430e-02
Coefficient B1.19650e+00
Coefficient C0.00000e+00
Coefficient D0.00000e+00
Coefficient E0.00000e+00
Critical temperature, Tc (K)8.03000e+02
Temperature range, min.342.75
Temperature range, max.803.00
γ 0.03 N/m 342.75 Calculated Property
γ 0.02 N/m 393.89 Calculated Property
γ 0.02 N/m 445.03 Calculated Property
γ 0.02 N/m 496.17 Calculated Property
γ 0.01 N/m 547.31 Calculated Property
γ 0.01 N/m 598.44 Calculated Property
γ 0.01 N/m 649.58 Calculated Property
γ 0.00 N/m 700.72 Calculated Property
γ 0.00 N/m 751.86 Calculated Property
γ 0.00 N/m 803.00 Calculated Property
Property Value Unit Temperature (K) Source
λgas [0.03; 0.10] W/m×K [648.35; 1000.00] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A·T^B / (1 + C/T + D/T²)
Y is λgas in W/m×K, T in K
Coefficient A6.21330e-09
Coefficient B2.49360e+00
Coefficient C8.04070e+02
Coefficient D0.00000e+00
Temperature range, min.648.35
Temperature range, max.1000.00
λgas 0.03 W/m×K 648.35 Calculated Property
λgas 0.03 W/m×K 687.42 Calculated Property
λgas 0.04 W/m×K 726.49 Calculated Property
λgas 0.05 W/m×K 765.57 Calculated Property
λgas 0.05 W/m×K 804.64 Calculated Property
λgas 0.06 W/m×K 843.71 Calculated Property
λgas 0.07 W/m×K 882.78 Calculated Property
λgas 0.08 W/m×K 921.86 Calculated Property
λgas 0.09 W/m×K 960.93 Calculated Property
λgas 0.10 W/m×K 1000.00 Calculated Property
Property Value Unit Temperature (K) Source
λliquid [0.16; 0.10] W/m×K [342.75; 648.35] ChemSep v8.3 pure component data Compiled value Show Hide
EquationY = A + B·T + C·T² + D·T³ + E·T⁴
Y is λliquid in W/m×K, T in K
Coefficient A2.26000e-01
Coefficient B-2.00000e-04
Coefficient C0.00000e+00
Coefficient D0.00000e+00
Coefficient E0.00000e+00
Temperature range, min.342.75
Temperature range, max.648.35
λliquid 0.16 W/m×K 342.75 Calculated Property
λliquid 0.15 W/m×K 376.71 Calculated Property
λliquid 0.14 W/m×K 410.66 Calculated Property
λliquid 0.14 W/m×K 444.62 Calculated Property
λliquid 0.13 W/m×K 478.57 Calculated Property
λliquid 0.12 W/m×K 512.53 Calculated Property
λliquid 0.12 W/m×K 546.48 Calculated Property
λliquid 0.11 W/m×K 580.44 Calculated Property
λliquid 0.10 W/m×K 614.39 Calculated Property
λliquid 0.10 W/m×K 648.35 Calculated Property

Similar Compounds

Tricosanoic acid. n-Decanoic acid. Undecanoic acid. Tetradecanoic acid. N-TRIDECANOIC ACID. Octanoic acid. Tetracosanoic acid. Nonadecanoic acid. Eicosanoic acid. OCTACOSANOIC ACID. Dodecanoic acid. Nonanoic acid. n-Hexadecanoic acid. Melissic acid. Hexacosanoic acid.

Find more compounds similar to Octadecanoic acid.

Mixtures

Find more mixtures with Octadecanoic acid.

Sources

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
Compiled This icon marks a compiled value or equation: taken from a data compilation such as ChemSep, not from an original measurement report.
These property values are available through the Cheméo API. A free account gives you an access key.