Octadecane

• Formula: C₁₈H₃₈
• Molecular weight: 254.4943
• IUPAC Standard InChI: InChI=1S/C18H38/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-18H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: RZJRJXONCZWCBN-UHFFFAOYSA-N Copy
• CAS Registry Number: 593-45-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: n-Octadecane; Octadecan
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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
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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.

Domanska, Lachwa, et al., 1999
Domanska, U.; Lachwa, J.; Morawski, P., Phase Equil. and Vol. Prop. in Binary Mixt. Cont. Branched Chain Ethers (Methyl 1,1-Dimethylethyl Ether or Ethyl 1,1-Dimethylethyl Ether or Methyl 1,1-Dimethylpropyl Ether or Ethyl 1,1-Dimethylpropyl, J. Chem. Eng. Data, 1999, 44, 974-84. [all data]

Kolesnikov and Syunyaev, 1985
Kolesnikov, S.I.; Syunyaev, Z.I., Calorimetric study of the phase transitions of solid hydrocarbons I. Phase transitions in the melting and crystallization of n-C18H38 and n-C20H42, Zh. Prikl. Khim. (Leningrad), 1985, 58, 2267. [all data]

Findenegg, 1970
Findenegg, G.H., Density and expansion coefficient of some liquid alkanes, Monatsh. Chem., 1970, 101, 1081. [all data]

Anonymous, 1968
Anonymous, R., Properties of hydrocarbon of high molecular weight, Am. Pet. Inst. Res. Proj. 42, Penn. State Univ., 1968. [all data]

Hogenboon, Webb, et al., 1967
Hogenboon, D.L.; Webb, W.; Dixon, J.A., J. Chem. Phys., 1967, 46, 2586. [all data]

Sondheimer, Amiel, et al., 1957
Sondheimer, F.; Amiel, Y.; Wolovsky, R., Unsaturated Macrocyclic Compounds IV. The Oxidation of Terminal Diacetylenes to Macrocyclic Tetraacetaylenes, J. Am. Chem. Soc., 1957, 79, 6263. [all data]

Marculaitis, 1956
Marculaitis, W.J., , Ph.D. Thesis, Carnegie Inst. Technol., Pittsburgh, 1956. [all data]

Gilman and Ingham, 1955
Gilman, H.; Ingham, R.K., Some Tetraorganosilanes, J. Am. Chem. Soc., 1955, 77, 1680. [all data]

Schaerer, Busso, et al., 1955
Schaerer, A.A.; Busso, C.J.; Smith, A.E.; Skinner, L.B., Properties of Pure Normal Alkanes in the C17 to C36 Range, J. Am. Chem. Soc., 1955, 77, 2017-8. [all data]

Streiff, Hulme, et al., 1955
Streiff, A.J.; Hulme, A.R.; Cowie, P.A.; Krouskop, N.C.; Rossini, F.D., Purification, Purity, and Freezing Points of Sixty-four American Petroleum Institute Standard and Research Hydrocarbons, Anal. Chem., 1955, 27, 411. [all data]

Topchiev, Rozenberg, et al., 1954
Topchiev; Rozenberg; Nechitailo; Terent'eva, Dokl. Akad. Nauk SSSR, 1954, 98, 223-6. [all data]

Hoffman and Decker, 1953
Hoffman, J.D.; Decker, B.F., Solid state phase changes in long chain compounds., J. Phys. Chem., 1953, 57, 520-29. [all data]

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

Tilicheev and Kachmarchik, 1951
Tilicheev, M.D.; Kachmarchik, YuM., Basic physico-chemical constants of n-alkanes c(13)-c(19), Zh. Obshch. Khim., 1951, 21, 78-85. [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]

Nametkin, Nifontova, et al., 1950
Nametkin, S.S.; Nifontova, S.S.; Sushchik, R.Ya., Action of Nitric Acid on Octadecane and Hexatriacontane, Dokl. Akad. Nauk SSSR, 1950, 70, 241. [all data]

Schiessler, 1947
Schiessler, R.W., , Am. Pet. Inst. Res. Proj. 42, Twelfth Meeting, 1947. [all data]

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

Parks, West, et al., 1946
Parks, G.S.; West, T.J.; Naylor, B.F.; Fujii, P.S.; McClaine, L.A., Thermal Data on Organic Compounds XXIII. Modern Combustion Data for Fourteen Hydrocarbons and Five Polyhydric Alcohols, J. Am. Chem. Soc., 1946, 68, 2524. [all data]

Seyer, Patterson, et al., 1944
Seyer, W.F.; Patterson, R.F.; Keays, J.L., The Density and Transition Points of the n-Paraffin Hydrocarbons, J. Am. Chem. Soc., 1944, 66, 179-82. [all data]

Hetling and Shchekin, 1943
Hetling, V.A.; Shchekin, V.V., Preparation of Certain High Molecular Hydrocarbons, Zh. Obshch. Khim., 1943, 13, 717. [all data]

Van Hook, 1943
Van Hook, A., Personal Communication to Rosini, Aug 2, Lafayette COllege, 1943. [all data]

Naylor, 1943
Naylor, , Thesis, Stanford Univ., 1943. [all data]

Van Hook and Silver, 1942
Van Hook, A.; Silver, L., Premelting Anomalies of Some Long-Chain Normal Paraffin Hydrocarbons, J. Chem. Phys., 1942, 10, 686-90. [all data]

Fischer, 1940
Fischer, L.O., Research in stoichiometry: IV the heat of fusion and the polymorphism of organic compounds, Bull. Soc. Chim. Belg., 1940, 49, 129. [all data]

Ubbelohde, 1938
Ubbelohde, A.R., Structure and thermodynamic properties of long-chain compounds, Trans. Faraday Soc., 1938, 34, 282, https://doi.org/10.1039/tf9383400282 . [all data]

Carey and Smith, 1933
Carey, P.C.; Smith, J.C., Higher aliphatic compounds: part III the preparation of paraffins, J. Chem. Soc., 1933, 1933, 346-7. [all data]

Matsui and Arakawa, 1932
Matsui, M.; Arakawa, S., Mem. Coll. Sci., Univ. Kyoto, Ser. A, 1932, 15, 189. [all data]

Smith, 1932
Smith, J.C., J. Chem. Soc., 1932, 1932, 737. [all data]

Mueller and Saville, 1925
Mueller, A.; Saville, W.B., J. Chem. Soc., 1925, 127, 599. [all data]

Gascard, 1921
Gascard, A., Ann. Chim. (Paris), 1921, 15, 332. [all data]

Levene, West, et al., 1915
Levene, P.A.; West, C.J.; Van der Scheer, J., J. Biol. Chem., 1915, 20, 521. [all data]

Krafft, 1886
Krafft, F., A few higher normal paraffins., Chem. Ber., 1886, 19, 2218. [all data]

Krafft, 1882
Krafft, F., On Nineteen Higher Normal Paraffins and a Simple Volume Law for Liquids that form Drops I., Ber. Dtsch. Chem. Ges., 1882, 15, 1687-711. [all data]

Krafft, 1882, 2
Krafft, F., Nineteen higher normal paraffins CnH2n+2 and a simple volume law for the saturated liquid state., Ber. Dtsch. Chem. Ges., 1882, 15, 1711. [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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