Propanal, 2,2-dimethyl-
- Formula: C5H10O
- Molecular weight: 86.1323
- IUPAC Standard InChIKey: FJJYHTVHBVXEEQ-UHFFFAOYSA-N
- CAS Registry Number: 630-19-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Pivalaldehyde; α,α-Dimethylpropionaldehyde; Neopentanal; Pivalic aldehyde; Trimethylacetaldehyde; 2,2-Dimethylpropanal; 2,2-Dimethylpropionaldehyde; tert-C4H9CHO; Pivaldehyde; NSC 22043; tert-Valeraldehyde
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 262.05 | J/mol*K | N/A | Korkhov, D'yakova, et al., 1983 |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
192.8 | 298.43 | White and Perrott, 1988 | T = 29 to 298 K. Value is unsmoothed experimental datum. |
185.58 | 298.15 | Korkhov, D'yakova, et al., 1983 | T = 50 to 350 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 348. ± 3. | K | AVG | N/A | Average of 11 out of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 277.0 | K | N/A | Anonymous, 1957 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tfus | 279. | K | N/A | Meunier, 1936 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 276. | K | N/A | Pringsheim and Leibowitz, 1923 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 279. | K | N/A | Richard, 1910 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 276. | K | N/A | Sommelet, 1893 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 272.1 | K | N/A | White and Perrott, 1988, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
347.2 | 0.973 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
34.2 | 322. | Varughese and Sommerfeld, 1989 | Based on data from 308. to 336. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.52 | 272.1 | White and Perrott, 1988 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.15 | 158.5 | White and Perrott, 1988, 2 | CAL |
26.15 | 183.9 | ||
9.26 | 272.1 |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
274.15 | crystaline, I | liquid | Korkhov, D'yakova, et al., 1983 | Second order transitions observed at 62.5, 69.0, 110.8, 162.5, and 183.3 K.; DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.499 | 158.5 | crystaline, III | crystaline, II | White and Perrott, 1988 | DH |
4.809 | 183.9 | crystaline, II | crystaline, I | White and Perrott, 1988 | DH |
2.520 | 272.1 | crystaline, I | liquid | White and Perrott, 1988 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
3.34 | 158.5 | crystaline, III | crystaline, II | White and Perrott, 1988 | DH |
26.22 | 183.9 | crystaline, II | crystaline, I | White and Perrott, 1988 | DH |
9.3 | 272.1 | crystaline, I | liquid | White and Perrott, 1988 | DH |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Korkhov, D'yakova, et al., 1983
Korkhov, A.D.; D'yakova, G.N.; Vasil'ev, I.A.,
Heat capacity of pivalaldehyde and valeraldehyde,
Fiz.-khim. Aspekty Razrab. Neftekhim. Protsessov, 1983, M. [all data]
White and Perrott, 1988
White, M.A.; Perrott, A.,
The thermodynamics of orientational disorder in a molecular solid: (CH3)3CCHO,
Can. J. Chem., 1988, 66, 729-733. [all data]
Anonymous, 1957
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Carnegie-Mellon Univ., 1957. [all data]
Meunier, 1936
Meunier, V.C.,
, Ph.D. Thesis, Penn. State Univ., Univ. Park, 1936. [all data]
Pringsheim and Leibowitz, 1923
Pringsheim; Leibowitz,
Chem. Ber., 1923, 56, 2034. [all data]
Richard, 1910
Richard, A.,
Ann. Chim. Phys., 1910, 21, 323. [all data]
Sommelet, 1893
Sommelet, M.,
Ann. Chim. Phys., 1893, 29, 321. [all data]
White and Perrott, 1988, 2
White, M.A.; Perrott, A.,
The thermodynamics of orientational disorder in a molecular solid: (CH,
Can. J. Chem., 1988, 66, 4, 729, https://doi.org/10.1139/v88-127
. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Varughese and Sommerfeld, 1989
Varughese, Babu; Sommerfeld, Jude T.,
Vapor pressure of pivalaldehyde,
J. Chem. Eng. Data, 1989, 34, 1, 25-26, https://doi.org/10.1021/je00055a008
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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