Isoprene

• Formula: C₅H₈
• Molecular weight: 68.1170
• IUPAC Standard InChI: InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3 Copy

  
• IUPAC Standard InChIKey: RRHGJUQNOFWUDK-UHFFFAOYSA-N Copy
• CAS Registry Number: 78-79-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  View 3d structure (requires JavaScript / HTML 5)
• Other names: 1,3-Butadiene, 2-methyl-; β-Methylbivinyl; Isopentadiene; 2-Methyl-1,3-butadiene; 2-Methylbutadiene; CH2=C(CH3)CH=CH2; 2-Methylbuta-1,3-diene; 3-Methyl-1,3-butadiene; NSC 9237
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Normal boiling point
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Normal boiling point

Go To: Top, 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

References

Go To: Top, Normal boiling point, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Usov, Skvortsova, et al., 1967
Usov, Yu.N.; Skvortsova, Y.V.; Kuvshinova, N.I.; Yelovatskaya, L.A.; Alferova, G.V., Dehydration of Isopentenes and Isopentane on An Alumina-Chromium Oxide -Potassium Oxide Catalyst, Neftekhimiya, 1967, 7, 341-8. [all data]

Gorin, Galkina, et al., 1966
Gorin, Yu.A.; Galkina, G.I.; Makashina, A.N.; Andreeva, N.P., Catalytic Dehydrogenation of Normal Pentenes and Isopentenes and of Their Mixtures, Diluted with Steam, Zh. Prikl. Khim., 1966, 39, 1577-83. [all data]

Le Fevre, Sundaram, et al., 1963
Le Fevre, R.J.W.; Sundaram, A.; Pierens, R.K., Molecular Polarisability: the Anisotropy of the Carbon-Oxygen Link, J. Chem. Soc., 1963, 1963, 479-488. [all data]

Blomquist and Verdol, 1955
Blomquist, A.T.; Verdol, J.A., J. Am. Chem. Soc., 1955, 77, 78. [all data]

Janz and Wait, 1954
Janz, G.J.; Wait, S.C., J. Am. Chem. Soc., 1954, 76, 6377. [all data]

Gilbert and Williams, 1952
Gilbert, R.D.; Williams, L.W., J. Am. Chem. Soc., 1952, 74, 4114. [all data]

Foehr and Fenske, 1949
Foehr, E.G.; Fenske, M.R., Magneto-optic Rotation of Hydrocarbons, Ind. Eng. Chem., 1949, 41, 1956. [all data]

Lecat, 1947
Lecat, M., Orthobaric Azeotropes of Sulfides, Bull. Cl. Sci., Acad. R. Belg., 1947, 33, 160-82. [all data]

Bateman and Koch, 1944
Bateman, L.; Koch, H.P., Structure of Polyisoprene III. Ultraviolet Absorption Spectra, J. Chem. Soc., 1944, 1944, 600-6. [all data]

Bekkedahl, Wood, et al., 1936
Bekkedahl, N.; Wood, L.A.; Wojciechowski, M., Some physical properties of isoprene., J. Res. Natl. Bur. Stand. (U. S.), 1936, 17, 883. [all data]

Bourguel and Piaux, 1932
Bourguel, M.; Piaux, L., Raman Effect in Chemistry. Allenic Hydrocarbons. Study and Preparation of 1,1-Dimethylallene, Bull. Soc. Chim. Fr., 1932, 51, 1041. [all data]

Heisig, 1931
Heisig, G.B., The action of radon on some unsaturated hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3245-3. [all data]

Lecat, 1927
Lecat, M., New binary azeotropes: 7th list, Ann. Soc. Sci. Bruxelles, Ser. B, 1927, 47, 108-14. [all data]

Harries, 1911
Harries, C.D., Hydrocarbons of the Butane Series and Preparation of Artificial Caoutchoue from Them, Justus Liebigs Ann. Chem., 1911, 383, 157. [all data]

Thorpe and Jones, 1893
Thorpe, T.E.; Jones, L.M., The thermal expansion and specific volumes of certain paraffins and paraffin derivatives, J. Chem. Soc., Trans., 1893, 63, 273-92. [all data]

Notes

Go To: Top, Normal boiling point, References

• Symbols used in this document:
  

  Tboil

  Boiling point

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.