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Butane, 2,2,3-trimethyl-

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Condensed phase thermochemistry data

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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-236.9 ± 1.1kJ/molCcbProsen and Rossini, 1945ALS
Deltafliquid-238. ± 1.kJ/molCcbDavies and Gilbert, 1941ALS
Quantity Value Units Method Reference Comment
Deltacliquid-4803.99 ± 0.50kJ/molCmCoops, Mulder, et al., 1946Reanalyzed by Cox and Pilcher, 1970, Original value = -4802.1 ± 0.3 kJ/mol; Corresponding «DELTA»fliquid = -237.2 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-4804.4 ± 1.0kJ/molCcbProsen and Rossini, 1945Corresponding «DELTA»fliquid = -236.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-4803. ± 1.kJ/molCcbDavies and Gilbert, 1941Corresponding «DELTA»fliquid = -238.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid292.25J/mol*KN/AHuffman, Gross, et al., 1961DH
liquid27.11J/mol*KN/AHuffman, Parks, et al., 1930Extrapolation below 90 K, 14.0 cal mol-1 K-1.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
213.51298.15Huffman, Gross, et al., 1961T = 10 to 300 K.; DH
208.4293.9Huffman, Parks, et al., 1930T = 89 to 294 K. Value is unsmoothed experimental datum.; DH

References

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

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Davies and Gilbert, 1941
Davies, G.F.; Gilbert, E.C., Heats of combustion and formation of the nine isomeric heptanes in the liquid state, J. Am. Chem. Soc., 1941, 63, 2730-2732. [all data]

Coops, Mulder, et al., 1946
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J., The heats of combustion of a number of hydrocarbons, Rec. Trav. Chim. Pays/Bas, 1946, 65, 128. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Huffman, Gross, et al., 1961
Huffman, H.M.; Gross, M.E.; Scott, D.W.; McCullough, I.P., Low temperature thermodynamic properties of six isomeric heptanes, J. Phys. Chem., 1961, 65, 495-503. [all data]

Huffman, Parks, et al., 1930
Huffman, H.M.; Parks, G.S.; Thomas, S.B., Thermal data on organic compounds. VIII. The heat capacities, entropies and free energies of the isomeric heptanes, J. Am. Chem. Soc., 1930, 52, 3241-3251. [all data]


Notes

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