Chemical Properties of Pentacosane (CAS 629-99-2)

Pentacosane

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InChI
InChI=1S/C25H52/c1-3-5-7-9-11-13-15-17-19-21-23-25-24-22-20-18-16-14-12-10-8-6-4-2/h3-25H2,1-2H3
InChI Key
YKNWIILGEFFOPE-UHFFFAOYSA-N
Formula
C25H52
SMILES
CCCCCCCCCCCCCCCCCCCCCCCCC
Molecular Weight1
352.68
CAS
629-99-2
Other Names
  • n-Pentacosane
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Physical Properties

Property Value Unit Source
Δf 159.62 kJ/mol Joback Calculated Property
Δfgas -559.33 kJ/mol Joback Calculated Property
Δfus 55.53 kJ/mol Solid l...
Δsub 174.00 ± 10.00 kJ/mol NIST
Δvap [126.80; 129.80] kJ/mol Show Hide
Δvap 126.80 kJ/mol NIST
Δvap 128.60 ± 2.20 kJ/mol NIST
Δvap 127.60 ± 0.80 kJ/mol NIST
Δvap 129.80 ± 2.90 kJ/mol NIST
log10WS -10.29 Crippen Calculated Property
logPoct/wat 9.998 Crippen Calculated Property
McVol 363.110 ml/mol McGowan Calculated Property
Pc 763.95 kPa Joback Calculated Property
Inp [394.59; 402.21]   Show Hide
Inp 394.59 NIST
Inp 402.21 NIST
solid,1 bar 671.10 J/mol×K NIST
Tboil 675.10 K NIST
Tc 944.85 K Joback Calculated Property
Tfus [325.50; 328.90] K Show Hide
Tfus 326.65 K KDB
Tfus 327.20 ± 0.40 K NIST
Tfus 326.00 ± 0.10 K NIST
Tfus 326.70 ± 0.30 K NIST
Tfus 326.15 ± 2.00 K NIST
Tfus 327.65 ± 2.00 K NIST
Tfus 326.50 ± 0.60 K NIST
Tfus 326.15 ± 3.00 K NIST
Tfus 326.60 ± 0.20 K NIST
Tfus 326.50 ± 0.60 K NIST
Tfus 326.50 ± 0.50 K NIST
Tfus 325.50 ± 3.00 K NIST
Tfus 325.50 ± 2.00 K NIST
Tfus 326.90 ± 2.00 K NIST
Tfus Outlier 328.90 ± 1.00 K NIST
Tfus 327.10 ± 1.00 K NIST
Tfus 327.00 ± 3.00 K NIST
Vc 1.435 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [1151.50; 1276.43] J/mol×K [771.40; 944.85] Show Hide
Cp,gas 1151.50 J/mol×K 771.40 Joback Calculated Property
Cp,gas 1174.90 J/mol×K 800.31 Joback Calculated Property
Cp,gas 1197.21 J/mol×K 829.22 Joback Calculated Property
Cp,gas 1218.47 J/mol×K 858.13 Joback Calculated Property
Cp,gas 1238.74 J/mol×K 887.04 Joback Calculated Property
Cp,gas 1258.04 J/mol×K 915.95 Joback Calculated Property
Cp,gas 1276.43 J/mol×K 944.85 Joback Calculated Property
Cp,liquid 815.90 J/mol×K 333.00 NIST
Cp,solid 769.00 J/mol×K 294.50 NIST
η [0.0000503; 0.0020715] Pa×s [371.51; 771.40] Show Hide
η 0.0020715 Pa×s 371.51 Joback Calculated Property
η 0.0006958 Pa×s 438.16 Joback Calculated Property
η 0.0003118 Pa×s 504.81 Joback Calculated Property
η 0.0001685 Pa×s 571.45 Joback Calculated Property
η 0.0001035 Pa×s 638.10 Joback Calculated Property
η 0.0000697 Pa×s 704.75 Joback Calculated Property
η 0.0000503 Pa×s 771.40 Joback Calculated Property
ΔfusH [26.07; 79.39] kJ/mol [320.20; 326.70] Show Hide
ΔfusH 26.07 kJ/mol 320.20 NIST
ΔfusH 55.53 kJ/mol 325.90 NIST
ΔfusH 57.80 kJ/mol 326.40 NIST
ΔfusH 79.39 kJ/mol 326.60 NIST
ΔfusH 57.74 kJ/mol 326.70 NIST
ΔfusH 57.74 kJ/mol 326.70 NIST
ΔvapH [90.90; 126.80] kJ/mol [298.00; 566.00] Show Hide
ΔvapH 119.10 kJ/mol 298.00 A Compa...
ΔvapH 126.80 kJ/mol 298.15 Vapor P...
ΔvapH 126.00 ± 1.00 kJ/mol 415.50 NIST
ΔvapH 106.60 kJ/mol 422.00 NIST
ΔvapH 97.60 kJ/mol 460.50 NIST
ΔvapH 90.90 ± 5.70 kJ/mol 479.50 NIST
ΔvapH 99.20 kJ/mol 566.00 NIST
Pvap [3.31e-04; 0.09] kPa [381.69; 461.98] Show Hide
Pvap 3.31e-04 kPa 381.69 Experim...
Pvap 7.83e-04 kPa 391.91 Experim...
Pvap 1.78e-03 kPa 402.03 Experim...
Pvap 3.83e-03 kPa 411.75 Experim...
Pvap 3.83e-03 kPa 411.78 Experim...
Pvap 8.02e-03 kPa 422.02 Experim...
Pvap 0.02 kPa 432.21 Experim...
Pvap 0.03 kPa 442.33 Experim...
Pvap 0.03 kPa 442.34 Experim...
Pvap 0.05 kPa 452.24 Experim...
Pvap 0.05 kPa 452.25 Experim...
Pvap 0.09 kPa 461.95 Experim...
Pvap 0.09 kPa 461.98 Experim...
Pvap 0.09 kPa 461.98 Experim...
ΔfusS [81.42; 243.10] J/mol×K [320.20; 326.70] Show Hide
ΔfusS 81.42 J/mol×K 320.20 NIST
ΔfusS 243.10 J/mol×K 326.60 NIST
ΔfusS 176.76 J/mol×K 326.70 NIST

Correlations

Property Value Unit Temperature (K) Source
Pvap [2.09e-05; 42.74] kPa [355.15; 675.15] KDB Vap... Show Hide
Equationln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A5.22396e+02
Coefficient B-3.82614e+04
Coefficient C-7.31253e+01
Coefficient D3.16722e-05
Temperature range, min.355.15
Temperature range, max.675.15
Pvap 2.09e-05 kPa 355.15 Calculated Property
Pvap 8.19e-04 kPa 390.71 Calculated Property
Pvap 0.01 kPa 426.26 Calculated Property
Pvap 0.10 kPa 461.82 Calculated Property
Pvap 0.47 kPa 497.37 Calculated Property
Pvap 1.63 kPa 532.93 Calculated Property
Pvap 4.46 kPa 568.48 Calculated Property
Pvap 10.39 kPa 604.04 Calculated Property
Pvap 21.77 kPa 639.59 Calculated Property
Pvap 42.74 kPa 675.15 Calculated Property

Similar Compounds

Tetradecane. Nonacosane. Hexacosane. Heptadecane. dooctacontane. Octane-d18-. Tetracosane. octapentacontane. Tetratriacontane. Heptacosane. Docosane. Dodecane. n-Octatetracontane. heptahexacontane. Dotriacontane.

Find more compounds similar to Pentacosane.

Mixtures

Sources

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.