Carbonic difluoride
- Formula: CF2O
- Molecular weight: 66.0069
- IUPAC Standard InChI: InChI=1S/CF2O/c2-1(3)4
- IUPAC Standard InChIKey: IYRWEQXVUNLMAY-UHFFFAOYSA-N
- CAS Registry Number: 353-50-4
- 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 fluoride; Carbon difluoride oxide; Carbon fluoride oxide (COF2); Carbon oxyfluoride; Carbonyl difluoride; Difluoroformaldehyde; Fluoroformyl fluoride; Fluorophosgene; COF2; Fluophosgene; Difluorooxomethane; Difluorophosgene; Carbon fluoride oxide; Rcra waste number U033; UN 2417; Carbon oxyfluoride (COF2)
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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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 190. | K | N/A | PCR Inc., 1990 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 4.78 | 174. | A | Stephenson and Malanowski, 1987 | Based on data from 159. to 189. K.; 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 |
|---|---|---|---|---|---|
| 163.60 to 189.17 | 3.990 | 572.866 | -45.011 | Pace and Reno, 1968 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 5.54 | 145. | Stephenson and Malanowski, 1987 | Based on data from 130. to 159. K. See also Pace, 1968.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 1.6 | 161.9 | Pace, 1968 | AC |
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.
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [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]
Pace and Reno, 1968
Pace, E.L.; Reno, M.A.,
Thermodynamic Properties of Carbonyl Fluoride from 12 K to its Boiling Point. The Entropy from Molecular and Spectroscopic Data,
J. Chem. Phys., 1968, 48, 3, 1231-1235, https://doi.org/10.1063/1.1668786
. [all data]
Pace, 1968
Pace, E.L.,
Thermodynamic Properties of Carbonyl Fluoride from 12°K to Its Boiling Point. The Entropy from Molecular and Spectroscopic Data,
J. Chem. Phys., 1968, 48, 3, 1231, https://doi.org/10.1063/1.1668786
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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