2-Butanone, 3,3-dimethyl-
- Formula: C6H12O
- Molecular weight: 100.1589
- IUPAC Standard InChIKey: PJGSXYOJTGTZAV-UHFFFAOYSA-N
- CAS Registry Number: 75-97-8
- 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. - Other names: tert-Butyl methyl ketone; Methyl tert-butyl ketone; Pinacolin; Pinacoline; Pinacolone; 2,2-Dimethyl-3-butanone; 2,2-Dimethylbutanone; 3,3-Dimethyl-2-butanone; 3,3-Dimethylbutanone; tert-C4H9COCH3; Ketone, tert-butyl methyl; 1,1,1-Trimethylacetone; t-Butyl methyl ketone; Ketone, t-butyl methyl; Methyl t-butyl ketone; Pinakolin; 1,1-Dimethylethyl methyl ketone; 3,3-Dimethyl-butan-2-one; NSC 935
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Phase change data
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
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 379. ± 1. | K | AVG | N/A | Average of 33 out of 38 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 220.65 | K | N/A | Vorontsova and Vlasov, 1987 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 223.4 | K | N/A | Hill and Kropa, 1933 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 220.65 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 221.74 | K | N/A | Andon, Counsell, et al., 1970 | Uncertainty assigned by TRC = 0.05 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 562.9 | K | N/A | Majer and Svoboda, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 38. | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 38.3 | kJ/mol | N/A | Ambrose, Ellender, et al., 1975 | AC |
ΔvapH° | 37.87 ± 0.08 | kJ/mol | V | Harrop, Head, et al., 1970 | ht. of vaporization was from a private communication; ALS |
ΔvapH° | 37.9 ± 0.1 | kJ/mol | C | Harrop, Head, et al., 1970 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
50.780 | 441.4 | N/A | Svoboda, Kubes, et al., 1992 | Value corrected to 298.15 K.; DH |
33.39 | 379.3 | N/A | Majer and Svoboda, 1985 | |
37.8 ± 0.1 | 308. | C | Svoboda, Kubes, et al., 1992 | AC |
37.5 ± 0.1 | 313. | C | Svoboda, Kubes, et al., 1992 | AC |
36.9 ± 0.1 | 323. | C | Svoboda, Kubes, et al., 1992 | AC |
36.7 ± 0.1 | 328. | C | Svoboda, Kubes, et al., 1992 | AC |
35.8 ± 0.1 | 338. | C | Svoboda, Kubes, et al., 1992 | AC |
35.4 ± 0.1 | 343. | C | Svoboda, Kubes, et al., 1992 | AC |
35.0 ± 0.1 | 348. | C | Svoboda, Kubes, et al., 1992 | AC |
36.9 | 326. | A | Stephenson and Malanowski, 1987 | Based on data from 311. to 381. K.; AC |
34.9 | 378. | A | Stephenson and Malanowski, 1987 | Based on data from 363. to 400. K.; AC |
33.8 | 411. | A | Stephenson and Malanowski, 1987 | Based on data from 396. to 509. K.; AC |
33.1 | 506. | A | Stephenson and Malanowski, 1987 | Based on data from 491. to 567. K.; AC |
38.3 | 304. | A | Stephenson and Malanowski, 1987 | Based on data from 289. to 402. K. See also Ambrose, Ellender, et al., 1975.; AC |
36.1 | 338. | C | Geiseler, Quitzsch, et al., 1973 | AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 378. | 52.2 | 0.2491 | 562.9 | Majer and Svoboda, 1985 |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
11.330 | 221.74 | Andon, Counsell, et al., 1970, 2 | DH |
11.34 | 221.7 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
51.10 | 221.74 | Andon, Counsell, et al., 1970, 2 | DH |
51.04 | 221.7 | Domalski and Hearing, 1996 | CAL |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Vorontsova and Vlasov, 1987
Vorontsova, N.A.; Vlasov, O.N.,
Determination of saturated vapor pressure of Bayletone and its semiproducts,
Deposited Doc. ONIITEkhim Cherkassy, 1987, Doc. No. 1423 khp - 87, 1987. [all data]
Hill and Kropa, 1933
Hill, G.A.; Kropa, E.L.,
Some Halogented Pinacalones,
J. Am. Chem. Soc., 1933, 55, 2509. [all data]
Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F.,
Freezing points of orgainic substances VI. New experimental determinations.,
Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]
Andon, Counsell, et al., 1970
Andon, R.J.L.; Counsell, J.F.; Lees, E.B.; Martin, J.F.,
Thermodynamic Properties of Organic Oxygen Compounds Part XXIII. Low- temperature Heat Capacity and Entropy of C6, C7, and C9 Ketones,
J. Chem. Soc. A, 1970, 1970, 833. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Ambrose, Ellender, et al., 1975
Ambrose, D.; Ellender, J.H.; Lees, E.B.; Sprake, C.H.S.; Townsend, R.,
Thermodynamic properties of organic oxygen compounds XXXVIII. Vapour pressures of some aliphatic ketones,
The Journal of Chemical Thermodynamics, 1975, 7, 5, 453-472, https://doi.org/10.1016/0021-9614(75)90275-X
. [all data]
Harrop, Head, et al., 1970
Harrop, D.; Head, A.J.; Lewis, G.B.,
Thermodynamic properties of organic oxygen compounds. 22. Enthalpies of combustion of some aliphatic ketones,
J. Chem. Thermodyn., 1970, 2, 203-210. [all data]
Svoboda, Kubes, et al., 1992
Svoboda, V.; Kubes, V.; Basarova, P.,
Enthalpies of vaporization and cohesive energies of hexan-2-one, 2-methylpentan-4-one, 2,2-dimethylbutan-3-one, 2,6-dimethylheptan-4-one and cyclohexanone,
J. Chem. Thermodynam., 1992, 24, 333-336. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Geiseler, Quitzsch, et al., 1973
Geiseler, G.; Quitzsch, K.; Hofmann, H.-P.; Pfestorf, R.Z.,
Z. Phys. Chem. (Leipzig), 1973, 252, 170. [all data]
Andon, Counsell, et al., 1970, 2
Andon, R.J.L.; Counsell, J.F.; Lees, E.B.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. Part XXIII. Low-temperature heat capacity and entropy of C6, C7,
and C9 ketones, 1970, J. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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