Pentane, 2,2,4-trimethyl-
- Formula: C8H18
- Molecular weight: 114.2285
- IUPAC Standard InChI: InChI=1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3
- IUPAC Standard InChIKey: NHTMVDHEPJAVLT-UHFFFAOYSA-N
- CAS Registry Number: 540-84-1
- 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: Isooctane; Isobutyltrimethylmethane; 2,2,4-Trimethylpentane; (CH3)2CHCH2C(CH3)3; Isobutyltrimethylethane; UN 1262
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Normal melting 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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Tfus (K) | Reference | Comment |
|---|---|---|
| 165.78 | Battino and Allison, 1966 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 165.750 | Anonymous, 1959 | Uncertainty assigned by TRC = 0.04 K; TRC |
| 165.760 | Anonymous, 1959 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 165.750 | Anonymous, 1959 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 165.76 | Mueller and Lewis, 1957 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 165.73 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 165.77 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.09 K; TRC |
| 165.77 | Crawford and Harbourn, 1955 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 165.76 | Pomerantz, 1952 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 165.76 | Pomerantz, 1952 | Uncertainty assigned by TRC = 0.03 K; TRC |
| 165.85 | Timmermans, 1952 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 165.73 | Anonymous, 1951 | Uncertainty assigned by TRC = 0.1 K; TRC |
| 165.76 | Anonymous, 1951 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 165.75 | Kay and Warzel, 1951 | Uncertainty assigned by TRC = 0.15 K; TRC |
| 165.76 | Anonymous, 1950 | Uncertainty assigned by TRC = 0.03 K; TRC |
| 165.77 | Anonymous, 1950 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 165.730 | Denyer, Fidler, et al., 1949 | Uncertainty assigned by TRC = 0.15 K; TRC |
| 165.75 | LeTourneau and Matteson, 1948 | Uncertainty assigned by TRC = 0.3 K; TRC |
| 165.75 | Streiff, Zimmerman, et al., 1948 | Uncertainty assigned by TRC = 0.12 K; TRC |
| 165.77 | Streiff, Zimmerman, et al., 1948 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 165.78 | Streiff, Zimmerman, et al., 1948, 2 | Uncertainty assigned by TRC = 0.03 K; TRC |
| 165.75 | Streiff, 1947 | Uncertainty assigned by TRC = 0.04 K; TRC |
| 165.77 | Streiff, 1947 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 165.78 | Anonymous, 1946 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 165.75 | Forziati, Glasgow, et al., 1946 | Uncertainty assigned by TRC = 0.01 K; TRC |
| 165.83 | Fidler, 1945 | Uncertainty assigned by TRC = 0.3 K; TRC |
| 165.83 | Anonymous, 1944 | Uncertainty assigned by TRC = 0.3 K; TRC |
| 165.75 | Rank, Scott, et al., 1942 | Uncertainty assigned by TRC = 0.5 K; TRC |
| 165.78 | Anonymous, 1941 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 165.78 | Brooks, Howard, et al., 1940 | Uncertainty assigned by TRC = 0.07 K; TRC |
| 165.55 | Wibaut, Hoog, et al., 1939 | Uncertainty assigned by TRC = 0.4 K; TRC; Data excluded from overall average |
| 165.83 | Brooks, 1938 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 165.55 | Smittenberg, Hoog, et al., 1938 | Uncertainty assigned by TRC = 0.2 K; TRC; Data excluded from overall average |
| 165.84 | Smith and Matheson, 1938 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 166.15 | Leslie and Heuer, 1937 | Uncertainty assigned by TRC = 2. K; TRC; Data excluded from overall average |
| 165. | Timmermans, 1935 | Uncertainty assigned by TRC = 2. K; TRC; Data excluded from overall average |
| 165.65 | Bromiley and Quiggle, 1933 | Uncertainty assigned by TRC = 0.5 K; TRC; Data excluded from overall average |
| 165.45 | Tongberg, Pickens, et al., 1932 | Uncertainty assigned by TRC = 0.4 K; TRC; Data excluded from overall average |
| 165.35 | Parks and Huffman, 1931 | Uncertainty assigned by TRC = 0.5 K; TRC; Data excluded from overall average |
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.
Battino and Allison, 1966
Battino, R.; Allison, G.W.,
Thermodynamics of Binary Solutions of Nonelectrolytes with 2,2,4-Trimethyl- pentane II. Phase Equilibrium Study with Cyclohexane and a New Cooling Curve Apparatus,
J. Phys. Chem., 1966, 70, 3417. [all data]
Anonymous, 1959
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Carnegie-Mellon Univ., 1959. [all data]
Mueller and Lewis, 1957
Mueller, C.R.; Lewis, J.E.,
Thermodynamic Properties of the System Iso-Octane and Perfluoroheptane perfluoroheptane,
J. Chem. Phys., 1957, 26, 286-92. [all data]
Crawford and Harbourn, 1955
Crawford, W.; Harbourn, C.L.A.,
Anal. Chem., 1955, 27, 1449. [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]
Kay and Warzel, 1951
Kay, W.B.; Warzel, F.M.,
2,2,4-Trimethylpentane (Isooctane), Vapor Pressure, Critical Constants and Saturated Vapor and Liquid Densities,
Ind. Eng. Chem., 1951, 43, 1150-2. [all data]
Anonymous, 1950
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Natl. Bur. Stand., 1950. [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]
LeTourneau and Matteson, 1948
LeTourneau, R.L.; Matteson, R.,
Measurement of Heat of Combustion of Volatile Hydrocarbons. Liquid Sample Holder,
Anal. Chem., 1948, 20, 663. [all data]
Streiff, Zimmerman, et al., 1948
Streiff, A.J.; Zimmerman, J.C.; Soule, L.F.; Butt, M.T.; Sedlak, V.A.; Willingham, C.B.; Rossini, F.D.,
, Am. Pet. Inst. Res. Proj. 6 unpublished, 1948. [all data]
Streiff, Zimmerman, et al., 1948, 2
Streiff, A.J.; Zimmerman, J.C.; Soule, L.F.; Butt, M.T.; Sedlak, V.A.; Willingham, C.B.; Rossini, F.D.,
Purification, Purity, and Freezing Points of 30 Hydrocarbons of the API-Standard and API-NBS Series,
J. Res. Natl. Bur. Stand. (U. S.), 1948, 41, 323. [all data]
Streiff, 1947
Streiff, A.J.,
, Am. Pet. Inst. Res. Proj. 6, Carnegie-Mellon Univ., 1947. [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]
Fidler, 1945
Fidler, F.A.,
, Sunbury Rep. No. 2731, Anglo-Iranian Oil Co., 1945. [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]
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]
Smith and Matheson, 1938
Smith, E.R.; Matheson, H.,
Boiling Points of Benzene, Ethylene Chloride, n-Heptane, and 2,2,4-Tri- methylpentane Over the Range 660- to 860-MM Pressure,
J. Res. Natl. Bur. Stand. (U. S.), 1938, 20, 641. [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, 1935
Timmermans, J.,
Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds.,
Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]
Bromiley and Quiggle, 1933
Bromiley, E.C.; Quiggle, D.,
Ind. Eng. Chem., 1933, 25, 1136. [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]
Notes
Go To: Top, Normal melting point, References
- Symbols used in this document:
Tfus Fusion (melting) point - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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