2-Heptyne
- Formula: C7H12
- Molecular weight: 96.1702
- IUPAC Standard InChIKey: AMSFEMSYKQQCHL-UHFFFAOYSA-N
- CAS Registry Number: 1119-65-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 1-Methyl-2-butylacetylene; n-C4H9C≡CCH3; hept-2-yne
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Phase change data
Go To: Top, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 350. ± 200. | K | AVG | N/A | Average of 9 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.23 | 361. | A | Stephenson and Malanowski, 1987 | Based on data from 346. to 385. K. See also Eisen and Orav, 1970 and Boublik, Fried, et al., 1984.; AC |
Gas Chromatography
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Squalane | 80. | 743. | Soják, Farkas, et al., 1991 | 107. m/0.25 mm/0.40 μm, H2 |
Capillary | OV-101 | 110. | 766. | Kuningas, Rang, et al., 1990 | He; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 100. | 743. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 110. | 742. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 120. | 742. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 130. | 741. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 86. | 744. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 90. | 743. | Rang, Kuningas, et al., 1976 | N2; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | Squalane | 60. | 746. | Orav and Eisen, 1972 | Column length: 80. m; Column diameter: 0.25 mm |
Packed | Squalane | 27. | 747. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 49. | 746. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 67. | 746. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 86. | 744. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | PEG 4000 | 110. | 965. | Rang, Orav, et al., 1988 | |
Capillary | PEG 4000 | 60. | 964. | Rang, Orav, et al., 1988 | |
Capillary | PEG 4000 | 80. | 964. | Rang, Orav, et al., 1988 | |
Capillary | PEG 4000 | 60. | 978.3 | Orav and Eisen, 1972 | Column length: 80. m; Column diameter: 0.25 mm |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Eisen and Orav, 1970
Eisen, O.; Orav, A.,
Eesti NSV Tead. Akad. Toim. Keem. Geol., 1970, 19, 3, 202. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Soják, Farkas, et al., 1991
Soják, L.; Farkas, P.; Ostrovský, I.; Janák, J.; Chrétien, J.R.,
Capillary gas chromatography of C5 - C13 branched alkynes on squalane and liquid crystal stationary phases,
J. Chromatogr., 1991, 557, 241-253, https://doi.org/10.1016/S0021-9673(01)87136-3
. [all data]
Kuningas, Rang, et al., 1990
Kuningas, K.; Rang, S.; Kailas, T.,
Relationship between the structure and retention of n-alkenes and n-alkynes on silicone phases,
J. Chromatogr., 1990, 520, 137-148, https://doi.org/10.1016/0021-9673(90)85094-C
. [all data]
Rang, Kuningas, et al., 1976
Rang, S.; Kuningas, K.; Orav, A.; Eisen, O.,
Capillary gas chromatography of n-alkynes. I. Retention indices,
J. Chromatogr., 1976, 119, 451-460, https://doi.org/10.1016/S0021-9673(00)86807-7
. [all data]
Orav and Eisen, 1972
Orav, A.; Eisen, O.,
The retention indexes for alkenes, alkynes and cyclenes on capillary columns,
Izv. Akad. Nauk Est. SSR, Khim. Geol., 1972, 21, 1, 39-47. [all data]
Hively and Hinton, 1968
Hively, R.A.; Hinton, R.E.,
Variation of the retention index with temperature on squalane substrates,
J. Gas Chromatogr., 1968, 6, 4, 203-217, https://doi.org/10.1093/chromsci/6.4.203
. [all data]
Rang, Orav, et al., 1988
Rang, S.A.; Orav, A.E.; Kuningas, K.R.; Meister, A.E.; Strense, T.V.; Eisen, O.G.,
Gas-Chromatographic Characteristics of unsaturated hydrocarbons, Academy of Sciences of Estonia SSR, Tallinn, Estonia SSR, 1988, 208. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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