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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Phase change 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:
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 | 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, 2 | AC |
Entropy of fusion
| ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 3.15 | 158.5 | White and Perrott, 1988 | 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, 2 | DH |
| 4.809 | 183.9 | crystaline, II | crystaline, I | White and Perrott, 1988, 2 | DH |
| 2.520 | 272.1 | crystaline, I | liquid | White and Perrott, 1988, 2 | 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, 2 | DH |
| 26.22 | 183.9 | crystaline, II | crystaline, I | White and Perrott, 1988, 2 | DH |
| 9.3 | 272.1 | crystaline, I | liquid | White and Perrott, 1988, 2 | DH |
Ion clustering 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: Cl- + C5H10O = (Cl- • C5H10O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 62.8 ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 91.6 | J/mol*K | N/A | Larson and McMahon, 1984 | gas phase; switching reaction(Cl-)CF3H, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 35. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
By formula: F- + C5H10O = (F- • C5H10O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 103. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 110. | J/mol*K | N/A | Larson and McMahon, 1983 | gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 70.3 ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1983 | gas phase; B,M |
References
Go To: Top, Phase change data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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
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]
White and Perrott, 1988, 2
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]
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]
Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B.,
Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria,
J. Am. Chem. Soc., 1984, 106, 517. [all data]
Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B.,
Gas phase negative ion chemistry of alkylchloroformates,
Can. J. Chem., 1984, 62, 675. [all data]
Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B.,
Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements,
J. Am. Chem. Soc., 1983, 105, 2944. [all data]
Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P.,
Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions,
J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014
. [all data]
Notes
Go To: Top, Phase change data, Ion clustering data, References
- Symbols used in this document:
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 ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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