Fluorodichloromethane
- Formula: CHCl2F
- Molecular weight: 102.923
- IUPAC Standard InChIKey: UMNKXPULIDJLSU-UHFFFAOYSA-N
- CAS Registry Number: 75-43-4
- 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: Methane, dichlorofluoro-; Algofrene Type 5; Arcton 7; Dichlorofluoromethane; Dichloromonofluoromethane; F 21; Freon F 21; Freon 21; FC 21; Genetron 21; Monofluorodichloromethane; CHFCl2; R 21; Dwuchlorofluorometan; UN 1029; CHCl2F; Refrigerant 21; Halon 112; Fluorocarbon-21; R 21 (refrigerant)
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Gas phase thermochemistry data
Go To: Top, Phase change data, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -67.701 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1970 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 70.088 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1970 |
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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1100. | 1100. to 6000. |
---|---|---|
A | 6.934991 | 23.97170 |
B | 35.81350 | 0.994877 |
C | -29.11891 | -0.195263 |
D | 8.926599 | 0.013232 |
E | -0.061180 | -2.363910 |
F | -71.32569 | -80.66511 |
G | 68.67510 | 90.85500 |
H | -67.70010 | -67.70010 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in June, 1970 | Data last reviewed in June, 1970 |
Phase change data
Go To: Top, Gas phase thermochemistry data, IR Spectrum, 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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 282.0 | K | N/A | PCR Inc., 1990 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 451.65 | K | N/A | Benning and McHarness, 1940 | Uncertainty assigned by TRC = 0.4 K; visual observation of the meniscus; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 5.07 | mol/l | N/A | Benning and McHarness, 1940 | Uncertainty assigned by TRC = 0.02 mol/l; by extrapolation of rectilinear diameter to critical temp.; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.24 | 267. | A | Stephenson and Malanowski, 1987 | Based on data from 225. to 282. K.; AC |
6.05 | 294. | A | Stephenson and Malanowski, 1987 | Based on data from 279. to 344. K.; AC |
5.78 | 356. | A | Stephenson and Malanowski, 1987 | Based on data from 341. to 399. K.; AC |
5.76 | 412. | A | Stephenson and Malanowski, 1987 | Based on data from 397. to 450. K.; AC |
6.26 | 267. | N/A | Stull, 1947 | Based on data from 181. to 282. K.; AC |
8.77 | 259. | N/A | Benning and McHarness, 1940, 2 | Based on data from 244. to 317. 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 |
---|---|---|---|---|---|
181.8 to 282.1 | 4.09494 | 996.267 | -38.978 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
282.1 to 450.7 | 4.29150 | 1105.42 | -24.479 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, 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]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Benning and McHarness, 1940
Benning, A.F.; McHarness, R.C.,
Thermodynamic Properties of Fluorochloromethanes and -Ethanes densities and critical constants of three fluorochloromethanes and trifluorotrichloroethane,
Ind. Eng. Chem., 1940, 32, 814. [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]
Benning and McHarness, 1940, 2
Benning, A.F.; McHarness, R.C.,
Thermodynamic Properties of Fluorochloromethanes and -Ethanes Vapor Pressure of Three Fluorochloromethanes and Trifluorotichloroethane,
Ind. Eng. Chem., 1940, 32, 4, 497-499, https://doi.org/10.1021/ie50364a011
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point Tc Critical temperature ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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