己烷性质表
己烷的一些性质如下所述。
基本信息
- 中文名:己烷、正己烷
- 化学式:C6H14
- CAS号:110-54-3、21666-38-6(氘代,d14)、4206-30-8(甲基氘代,d1)、32740-20-8(甲基氘代,d6)
- 英文名:n-hexane
- 外观:无色液体
结构性质
结构性质 | |
---|---|
折射率, nD | 1.3727 at 20 °C |
阿贝数 | ? |
介电常数, εr | 1.890 ε0 at 20 °C |
键长 | 20 pm |
晶体结构 | 参见文献[1][2] |
表面张力[3] | 20.5 dyn/cm at 0 °C 18.4 dyn/cm at 20 °C 13.4 dyn/cm at 68 °C |
黏度[4] | 0.4012 mPa·s at 0 °C 0.3258 mPa·s at 20 °C 0.2798 mPa·s at 40 °C 0.2288 mPa·s at 80 °C |
热力学性质
相性质 | |
---|---|
三相点 | 178.0 K (–95.1 °C), 1.23 Pa |
临界点 | 507.6 K (234.5 °C), 3020 kPa |
熔点 | −95.3 °C(177.8 K)[5] |
沸点 | 68.7 °C(341.8 K)[5] 59.12 °C(332.27 K)(556 torr) 62.93 °C(336.08 K)(630.9 torr) 64.79 °C(337.94 K)(670.8 torr)[6] |
标准熔化焓变, ΔfusH |
13 kJ/mol |
标准熔化熵变, ΔfusS |
70 J/(mol·K) |
标准汽化焓变, ΔvapH |
28.85 kJ/mol at 68.8 °C |
标准汽化熵变, ΔvapS |
? J/(mol·K) |
固体性质 | |
标准摩尔生成焓, ΔfH |
? kJ/mol |
标准摩尔熵,S |
? J/(mol K) |
热容量, cp | ? J/(mol K) |
液体性质 | |
标准摩尔生成焓, ΔfH |
–198.7 kJ/mol |
标准摩尔熵, S |
295 J/(mol K) |
燃烧热, ΔcH |
–4163 kJ/mol |
热容量, cp | 197.66 J/(mol K) |
气体性质 | |
标准摩尔生成焓, ΔfH |
–167.2 kJ/mol |
标准摩尔熵, S |
388.82 J/(mol K) |
热容量, cp | 142.6 J/(mol K) at 25 °C |
范德华常熟[7] | a = 2471 L2 kPa·mol−2 b = 0.1735 L·mol−1 |
液体蒸汽压
压力(mm Hg) | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | 45600 | |
温度(°C) | –53.9 | –25.0 | –2.3 | 15.8 | 49.6 | 68.7 | 93.0 | 131.7 | 166.6 | 209.4 | — | — |
数据来源:CRC Handbook of Chemistry and Physics 44th ed.
蒸馏数据
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|
|
谱图数据
UV-Vis | |
---|---|
λmax | ? nm |
消光系数, ε | ? |
IR | |
主要吸收峰 | ? cm−1 |
NMR | |
1H NMR | (CDCl3, 400 MHz) δ 1.35-1.23 (m, 8H), 0.91-0.86 (m, 6H) |
13C NMR | (CDCl3, 25 MHz) δ 31.9, 22.9, 12.2 |
MS | |
主要碎片质量 |
参考文献
- ^ Heiko Morell, Klaus Angermund, Andrew R. Lewis, Darren H. Brouwer, Colin A. Fyfe, Hermann Gies. Structural Investigation of Silicalite-I Loaded with n -Hexane by X-ray Diffraction, 29 Si MAS NMR, and Molecular Modeling. Chemistry of Materials. 2002-05, 14 (5): 2192–2198 [2021-01-19]. ISSN 0897-4756. doi:10.1021/cm011267f (英语).
- ^ E.S Shubina, E.V Bakhmutova, A.M Filin, I.B Sivaev, L.N Teplitskaya, A.L Chistyakov, I.V Stankevich, V.I Bakhmutov, V.I Bregadze, L.M Epstein. Dihydrogen bonding of decahydro-closo-decaborate(2−) and dodecahydro-closo-dodecaborate(2−) anions with proton donors: experimental and theoretical investigation. Journal of Organometallic Chemistry. 2002-09, 657 (1-2): 155–162 [2021-01-19]. doi:10.1016/S0022-328X(02)01380-3. (原始内容存档于2018-06-30) (英语).
- ^ Lange's Handbook of Chemistry, 10th ed, pp 1661-1663
- ^ Lange's Handbook of Chemistry, 10th ed, pp 1669-1674
- ^ 5.0 5.1 Gabriel Bernardo, Drahosh Vesely. Solubility of alkanes in a polystyrene matrix. Journal of Applied Polymer Science. 2008-11-15, 110 (4): 2393–2398 [2021-01-19]. doi:10.1002/app.28758 (英语).
- ^ Zieborak, K. The boiling-temperature isobars of liquid mixtures near the critical solubility temperature in the hexane-aniline system. Bulletin de l'Academie Polonaise de Sciences, Serie des Sciences, Chimiques, Geologiques et Geographiques, 1958. 6: 443-447. ISSN: 0366-2594.
- ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524
- ^ Pure Component Properties (Queriable database). Chemical Engineering Research Information Center. [25 May 2007]. (原始内容存档于2007-06-03).
- ^ 9.0 9.1 9.2 Binary Vapor-Liquid Equilibrium Data. Chemical Engineering Research Information Center. [25 May 2007]. (原始内容存档于2007-08-29).
- NIST Standard Reference Database. [2021-01-19]. (原始内容存档于2007-05-23).