Heptene

Heptene is a higher olefin, or alkene with the formula C7H14. The commercial product is a liquid that is a mixture of isomers. It is used as an additive in lubricants, as a catalyst, and as a surfactant. This chemical is also known as heptylene.

A log-lin vapor pressure chart of Heptene compared with various liquids
Not to be confused with heptane or heptyne.
1-Heptene
Names
Preferred IUPAC name
Hept-1-ene
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.008.881
EC Number
  • 2-heptene: 209-768-3
  • 3-heptene: 209-769-9
UNII
UN number 2278
  • 1-heptene: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3H,1,4-7H2,2H3 checkY
    Key: ZGEGCLOFRBLKSE-UHFFFAOYSA-N checkY
  • 3-heptene: InChI=1S/C7H14/c1-3-5-7-6-4-2/h5,7H,3-4,6H2,1-2H3
    Key: WZHKDGJSXCTSCK-UHFFFAOYSA-N
  • cis-2-: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3,5H,4,6-7H2,1-2H3/b5-3-
    Key: OTTZHAVKAVGASB-HYXAFXHYSA-N
  • trans-2-: InChI=1S/C7H14/c1-3-5-7-6-4-2/h3,5H,4,6-7H2,1-2H3/b5-3+
    Key: OTTZHAVKAVGASB-HWKANZROSA-N
  • 1-heptene: C=CCCCCC
  • 3-heptene: CCCC=CCC
  • cis-2-: CCCC/C=C\C
  • trans-2-: CCCC/C=C/C
Properties[1]
C7H14
Molar mass 98.189 g·mol−1
Appearance Colorless liquid
Density 0.697 g/mL
Melting point −119 °C (−182 °F; 154 K)
Boiling point 94 °C (201 °F; 367 K)
Hazards[1]
GHS labelling:
GHS02: FlammableGHS08: Health hazardGHS09: Environmental hazard
Danger
H225, H304, H410
P210, P233, P240, P241, P242, P243, P273, P280, P301+P310, P303+P361+P353, P331, P370+P378, P391, P403+P235, P405, P501
Flash point −9 °C (16 °F; 264 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

References
  1. 1-Heptene at Sigma-Aldrich

2. Carl Schaschke, 2014, A Dictionary of Chemical Engineering, Oxford University Press.

3. G. I. Nikishin, Yu. N. Ogibin & L. Kh. Rakhmatullina, 1975, ‘Peroxydisulfate-initiated reactions of 1-heptene with acetic and propionic acids’, Bulletin of the Academy of Sciences of the USSR, Division of chemical science, volume 23, pages1479–1483

4. Yu. D. Shenin, T. V. Kotenko & A. N. Egorenkova, Nystatin. IV. 1969, The heptaene component of samples of nystatin-nursimicin, Pharmaceutical Chemistry Journal volume 3, pages 631–634

5. Nicholas E. Leadbeater, Cynthia B. McGowan, 2013, Experiment 2: Second-Order Elimination Reaction Preparation of Heptene from 2-Bromoheptane, Laboratory Experiments Using Microwave Heating, chapter 3

6. E. S. Mortikov, M. I. Rozengart & B. A. Kazanskii, 1968, Dehydrocyclization of n-heptenes under conditions of a pulsed system and in the usual flow-type setup, Bulletin of the Academy of Sciences of the USSR, Division of chemical science volume 17, pages95–98(1968)

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