Heptane

• Formula: C₇H₁₆
• Molecular weight: 100.2019
• IUPAC Standard InChI: InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: IMNFDUFMRHMDMM-UHFFFAOYSA-N Copy
• CAS Registry Number: 142-82-5
• 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.
• Isotopologues:
  • Heptane-1,2,3,4,5,6-d13
  • Heptane-1,2,3,4-d9
  • Heptane-1,2,3,-d7
  • Heptane-1-d3
  • Heptane-d16
• Other names: n-Heptane; Dipropylmethane; Heptyl hydride; Skellysolve C; n-C7H16; Eptani; Heptan; Heptanen; Gettysolve-C; NSC 62784
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• Information on this page:
  • Normal melting 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
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Fluid Properties
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  • Gas Phase Kinetics Database
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Normal melting point

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

Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

References

Go To: Top, Normal melting point, Notes

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

Guieu, Faradjzadeh, et al., 1980
Guieu, R.; Faradjzadeh, A.; Carbonnel, L., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1980, No. 1, 52. [all data]

Guieu, Faradjzadeh, et al., 1980, 2
Guieu, R.; Faradjzadeh, A.; Carbonnel, L., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1980, No. 1, 54. [all data]

Guieu, Faradjzadeh, et al., 1980, 3
Guieu, R.; Faradjzadeh, A.; Carbonnel, L., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1980, No. 1, 56. [all data]

Guieu, Faradjzadeh, et al., 1980, 4
Guieu, R.; Faradjzadeh, A.; Carbonnel, L., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1980, No. 1, 58. [all data]

Ait-Kaci and Merlin, 1979
Ait-Kaci, A.; Merlin, J.C., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1979, No. 1, 68. [all data]

Holzhauer and Ziegler, 1975
Holzhauer, J.K.; Ziegler, W.T., Temperature dependence of excess thermodynamic properties of n-heptane-toluene, methylcyclohexane-toluene, and n-heptane-methylcyclohexane systems, J. Phys. Chem., 1975, 79(6), 590-604. [all data]

Carruth and Kobayashi, 1973
Carruth, G.F.; Kobayashi, R., Vapor pressure of normal paraffins ethane through n-decane from their triple points to about 10 mm Hg, J. Chem. Eng. Data, 1973, 18, 115-26. [all data]

Oetting, 1963
Oetting, F.L., The heat capacity and entropy of 2-methyl-2-propanol from 15 to 330!31k, J. Phys. Chem., 1963, 67, 2757-61. [all data]

Hollo, Lengyel, et al., 1958
Hollo, J.; Lengyel, T.; Uzonyi, G., Determination of the system heptane + toluene + pyridine + butanol, Magy. Kem. Lapja, 1958, 13, 440. [all data]

Neff and Hickman, 1955
Neff, J.A.; Hickman, J.B., Total Pressure of Certain Binary Liquid Mixtures, J. Phys. Chem., 1955, 59, 42-5. [all data]

Pomerantz, 1952
Pomerantz, P., Synthesis and physical properties of n-heptane and 2,2,4-trimethylpentane, J. Res. Natl. Bur. Stand. (U. S.), 1952, 48, 76-81. [all data]

Timmermans, 1952
Timmermans, J., Freezing points of organic compounds. VVI New determinations., Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]

Anonymous, 1951
Anonymous, R., , Sunbury Rep. No. 4199, Anglo-Iranian Oil Co., 1951. [all data]

Doolittle and Peterson, 1951
Doolittle, A.K.; Peterson, R.H., Preparation of physical properties of a series of n-alkanes, J. Am. Chem. Soc., 1951, 73, 2145. [all data]

Tilicheev, Peshkov, et al., 1951
Tilicheev, M.D.; Peshkov, V.P.; Yuganova, S.A., Cryoscopic Constants and Transition Temperatures of Normal Alkanes, Zh. Obshch. Khim., 1951, 21, 1229-37. [all data]

Anonymous, 1949
Anonymous, R., , Am. Pet. Inst. Res. Proj. 45, Ohio State Univ., 1949. [all data]

Denyer, Fidler, et al., 1949
Denyer, R.L.; Fidler, F.A.; Lowry, R.A., Azeotrope Formation Between Thiols and Hydrocarbons, Ind. Eng. Chem., 1949, 41, 2727-37. [all data]

Giller and Drickamer, 1949
Giller, E.B.; Drickamer, H.G., Viscosity of Normal Paraffins near the Freezing Point, Ind. Eng. Chem., 1949, 41, 2067. [all data]

Appleby, Avery, et al., 1947
Appleby, W.G.; Avery, W.H.; Meerbott, W.K., Kinetics and Mechanism of the Thermal Decomposition of n-Heptane, J. Am. Chem. Soc., 1947, 69, 2279. [all data]

Anonymous, 1946
Anonymous, R., , Am. Pet. Inst. Res. Proj. 45, Ohio State Univ., 1946. [all data]

Forziati, Glasgow, et al., 1946
Forziati, A.F.; Glasgow, A.R.; Willingham, C.B.; Rossini, F.D., Specification adn Properties of 29 Paraffin, 4 Alkylcyclopentanes, 10 Alkylcyclohexanes and 8 Alkylbenzene Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1946, 36, 129. [all data]

Glasgow, Murphy, et al., 1946
Glasgow, A.R.; Murphy, E.T.; Willingham, C.B.; Rossini, F.D., Purification, purity, and freezing points of 31 hydrocarbons of the api- nbs series, J. Res. Natl. Bur. Stand. (U. S.), 1946, 37, 141. [all data]

Anonymous, 1944
Anonymous, R., , Sunbury Rep., Anglo-Iranian Oil Co., March 22, 1944. [all data]

Rank, Scott, et al., 1942
Rank, D.H.; Scott, R.W.; Fenske, M.R., Qualitive and quantitative analysis of hydrocarbon mixtures, Anal. Chem., 1942, 14, 816. [all data]

Anonymous, 1941
Anonymous, R., , Am. Pet. Inst. Hydrocarbon Res. Proj., Third Annu. Rep., Ohio State Univ., Aug. 31, 1941. [all data]

Campbell and Eby, 1941
Campbell, K.N.; Eby, L.T., The Reduction of Multiple Carbon-Carbon Bonds III. Further Studies on the Preparation of Olefins from Acetylenes, J. Am. Chem. Soc., 1941, 63, 2683. [all data]

Jones and Starr, 1941
Jones, W.H.; Starr, C.E., Determination of the Heat of Combustion of Gasolines, Anal. Chem., 1941, 13, 287. [all data]

Brooks, Howard, et al., 1940
Brooks, D.B.; Howard, F.L.; Crafton, H.C., Physical Properties of Some Purified Aliphatic Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1940, 24, 33. [all data]

Wibaut, Hoog, et al., 1939
Wibaut, J.P.; Hoog, H.; Langedijk, S.L.; Overhoff, J.; Smittenberg, J.; Benninga, N.; Bouman, G.P.; van Dijk, H.; Gaade, W.; Geldof, H.; Hackmann, J.Th.; Jonker, E.W.; Paap, T.; Zuiderweg, F.J., Study on the Preparation and the Physical Constants of A Number of Alkanes and Cycloalkanes, Recl. Trav. Chim. Pays-Bas, 1939, 58, 329. [all data]

Brooks, 1938
Brooks, D.B., Properties of purified normal heptane and isooctane (2,2,4- trimethylpentane), J. Res. Natl. Bur. Stand. (U. S.), 1938, 21, 847. [all data]

Smittenberg, Hoog, et al., 1938
Smittenberg, J.; Hoog, H.; Henkes, R.A., Freezing Points of A Number of Pure Hydrocarbons of the Gasoline Boiling Range and of Some of their Binary Mixtures, J. Am. Chem. Soc., 1938, 60, 17. [all data]

Leslie and Heuer, 1937
Leslie, R.T.; Heuer, W.W., Study of the Crystal Behavior of Hydrocarbons, J. Res. Natl. Bur. Stand. (U. S.), 1937, 18, 639. [all data]

Timmermans and Hennaut-Roland, 1935
Timmermans, J.; Hennaut-Roland, M., Physical constants of 20 organic compounds. VII., J. Chim. Phys. Phys.-Chim. Biol., 1935, 32, 501. [all data]

Hicks-Brunn and Bruun, 1932
Hicks-Brunn, M.M.; Bruun, J.H., Isolation and Determination of Normal Heptane and of Methylcyclohexane in A Midcontinent Petroleum, J. Res. Natl. Bur. Stand. (U. S.), 1932, 8, 525. [all data]

Mair, 1932
Mair, B.J., The Synthesis, Purification, and Certain Physical Constants of the Normal Hydrocarbons from Pentane to Dodecane, of n-Amyl Bromide and of n-Nonyl Bromide, J. Res. Natl. Bur. Stand. (U. S.), 1932, 9, 457. [all data]

Tongberg and Fenske, 1932
Tongberg, C.O.; Fenske, M.R., Composition of straight-run pennsylvania gasoline: III isolation of pure hydrocarbons, Ind. Eng. Chem., 1932, 24, 814-8. [all data]

Tongberg, Pickens, et al., 1932
Tongberg, C.O.; Pickens, J.D.; Fenske, M.R.; Whitmore, F.C., The Isomers in "Diisobutylene". II., J. Am. Chem. Soc., 1932, 54, 3706-10. [all data]

Parks and Huffman, 1931
Parks, G.S.; Huffman, H.M., Some fusion and transition data for hydrocarbons, Ind. Eng. Chem., 1931, 23, 1138-9. [all data]

Shepard, Henne, et al., 1931
Shepard, A.F.; Henne, A.L.; Midgley, T., Physical Prop. of the Normal Paraffin Hydrocarbons Pentane to Dodecane, J. Am. Chem. Soc., 1931, 53, 1948. [all data]

Edgar, Calingaert, et al., 1929
Edgar, G.; Calingaert, G.; Marker, R.E., Preparation and Properties of the Isomeric Heptanes I. Preparation Preparation., J. Am. Chem. Soc., 1929, 51, 1483. [all data]

Edgar and Calingaert, 1929
Edgar, G.; Calingaert, G., Preparation and Properties of the Isomeric Heptanes II. Physical Prop. properties, J. Am. Chem. Soc., 1929, 51, 1540. [all data]

Smyth and Engel, 1929
Smyth, C.P.; Engel, E.W., Molecular Orientation and The Partial Vapor Pressures of Binary Mixtures I. Systems Composed of Normal Liquids, J. Am. Chem. Soc., 1929, 51, 2646-60. [all data]

Timmermans, 1921
Timmermans, J., The Freezing Points of Organic Substances IV. New Exp. Determinations, Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]

Timmermans, 1911
Timmermans, J., Researches on the freezing point of organic liquid compounds, Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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