Phosgene
- Formula: CCl2O
- Molecular weight: 98.916
- IUPAC Standard InChI: InChI=1S/CCl2O/c2-1(3)4
- IUPAC Standard InChIKey: YGYAWVDWMABLBF-UHFFFAOYSA-N
- CAS Registry Number: 75-44-5
- 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: Carbonyl dichloride; Carbonic dichloride; Carbon dichloride oxide; Carbon oxychloride; Carbonyl chloride; Chloroformyl chloride; CG; COCl2; Carbone (oxychlorure de); Carbonic chloride; Carbonio (ossicloruro di); Carbonylchlorid; Fosgeen; Fosgen; Fosgene; Koolstofoxychloride; NCI-C60219; Phosgen; Rcra waste number P095; UN 1076; Dichloroformaldehyde
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Gas phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -220.08 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1961 |
| ΔfH°gas | -220.1 ± 0.96 | kJ/mol | Cm | Davies and Pritchard, 1972 | Heat of hydrolysis; ALS |
| ΔfH°gas | -219.1 ± 0.59 | kJ/mol | Eqk | Lord and Pritchard, 1970 | ALS |
| ΔfH°gas | -209.5 ± 1.2 | kJ/mol | Eqk | Lord and Pritchard, 1969 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -218.9 ± 0.3 kJ/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°gas | -108.6 ± 0.42 | kJ/mol | Eqk | Lord and Pritchard, 1970 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 283.80 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1961 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. - 600. | 600. - 6000. |
|---|---|---|
| A | 36.64799 | 78.19770 |
| B | 115.1274 | 3.286914 |
| C | -128.6208 | -0.757840 |
| D | 57.68690 | 0.057932 |
| E | -0.299915 | -3.292010 |
| F | -236.1052 | -253.2500 |
| G | 297.3410 | 362.6110 |
| H | -220.0784 | -220.0784 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1961 | Data last reviewed in June, 1961 |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Davies and Pritchard, 1972
Davies, J.V.; Pritchard, H.O.,
The enthalpy of formation of phosgene,
J. Chem. Thermodyn., 1972, 4, 23-29. [all data]
Lord and Pritchard, 1970
Lord, A.; Pritchard, H.O.,
Thermodynamics of phosgene formation from carbon monoxide and chlorine,
J. Chem. Thermodyn., 1970, 2, 187-191. [all data]
Lord and Pritchard, 1969
Lord, A.; Pritchard, H.O.,
Thermodynamics of the reaction between carbon dioxide and carbon tetrachloride,
J. Chem. Thermodyn., 1969, 1, 495-498. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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