Chloral
- Formula: C2HCl3O
- Molecular weight: 147.388
- IUPAC Standard InChIKey: HFFLGKNGCAIQMO-UHFFFAOYSA-N
- CAS Registry Number: 75-87-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Acetaldehyde, trichloro-; Anhydrous chloral; Trichloroacetaldehyde; Trichloroethanal; CCl3CHO; Trichloracetaldehyde; 2,2,2-Trichloroethanal; Cloralio; Grasex; Rcra waste number U034; 2,2,2-Trichloroacetaldehyde; Acetaldehyde, 2,2,2-trichloro-
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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 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 |
---|---|---|---|---|---|
ΔfH°liquid | -52.13 | kcal/mol | Cm | Pritchard and Skinner, 1950 | Heat of hydrolysis; ALS |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
36.21 | 298. | von Reis, 1881 | T = 294 to 383 K.; DH |
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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 371.0 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 370.90 | K | N/A | Lecat, 1926 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 369.55 | K | N/A | Thorpe, 1880 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.8 | kcal/mol | V | Wiberg, Morgan, et al., 1994 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.75 | 250. | A | Stephenson and Malanowski, 1987 | Based on data from 235. to 371. K. See also Stull, 1947.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
235.4 to 370.8 | 4.32285 | 1466.442 | -31.765 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
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.
Pritchard and Skinner, 1950
Pritchard, H.O.; Skinner, H.A.,
The heats of hydrolysis of chloral and bromal, and the C-C bond dissociation energies in chloral and bromal,
J. Am. Chem. Soc., 1950, 1928-1931. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Lecat, 1926
Lecat, M.,
New binary azeotropes second list,
Recl. Trav. Chim. Pays-Bas, 1926, 45, 620-627. [all data]
Thorpe, 1880
Thorpe, T.E.,
On the Relation Between the Molecular Weights of Substances and their Specific Gravities in the Liquid State,
J. Chem. Soc., 1880, 37, 141. [all data]
Wiberg, Morgan, et al., 1994
Wiberg, K.B.; Morgan, K.M.; Maltz, H.,
Thermochemistry of carbonyl reactions. 6. A study of hydration equilibria,
J. Am. Chem. Soc., 1994, 116, 11067-11077. [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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [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 Tboil Boiling point ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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