Trichloromethane
- Formula: CHCl3
- Molecular weight: 119.378
- IUPAC Standard InChIKey: HEDRZPFGACZZDS-UHFFFAOYSA-N
- CAS Registry Number: 67-66-3
- 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. - Isotopologues:
- Other names: Chloroform; Freon 20; Methane, trichloro-; R 20; Trichloroform; CHCl3; Formyl trichloride; Methane trichloride; Methenyl trichloride; Methyl trichloride; Chloroforme; Cloroformio; NCI-C02686; R 20 (refrigerant); Trichloormethaan; Trichlormethan; Triclorometano; Rcra waste number U044; UN 1888; NSC 77361; F 20
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Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 334.3 ± 0.2 | K | AVG | N/A | Average of 36 out of 37 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 210. ± 2. | K | AVG | N/A | Average of 14 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 209.61 | K | N/A | Stull, 1937 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 537. ± 2. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 53.2868 | bar | N/A | Campbell and Chatterjee, 1969 | Uncertainty assigned by TRC = 0.1013 bar; TRC |
Pc | 53.2868 | bar | N/A | Campbell and Chatterjee, 1968 | Uncertainty assigned by TRC = 0.0607 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.11 | mol/l | N/A | Campbell and Chatterjee, 1969 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
ρc | 3.84 | mol/l | N/A | Campbell and Chatterjee, 1968 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
ρc | 4.15 | mol/l | N/A | Herz and Neukirch, 1923 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 31.4 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 31.32 ± 0.08 | kJ/mol | Review | Manion, 2002 | weighted average of several measurements plus a correction for non-ideality; DRB |
ΔvapH° | 31.1 | kJ/mol | C | Majer, Sváb, et al., 1980 | AC |
ΔvapH° | 30.5 ± 0.42 | kJ/mol | V | Mathews, 1926 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 29.4 ± 0.2 kJ/mol; ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
29.24 | 334.3 | N/A | Majer and Svoboda, 1985 | |
30.8 | 321. | N/A | Chen, Wang, et al., 1995 | Based on data from 306. to 427. K.; AC |
31.8 | 254. | A | Stephenson and Malanowski, 1987 | Based on data from 227. to 269. K.; AC |
30.4 | 348. | A | Stephenson and Malanowski, 1987 | Based on data from 333. to 416. K.; AC |
28.9 | 425. | A | Stephenson and Malanowski, 1987 | Based on data from 410. to 481. K.; AC |
30.1 | 494. | A | Stephenson and Malanowski, 1987 | Based on data from 479. to 523. K.; AC |
32.5 | 275. | EB | Boublík and Aim, 1972 | Based on data from 260. to 333. K.; AC |
35.0 | 230. | N/A | Stull, 1947 | Based on data from 215. to 334. K.; AC |
30.9 | 320. | N/A | Scatchard and Raymond, 1938 | Based on data from 308. to 333. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
215. to 334.4 | 4.20772 | 1233.129 | -40.953 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
334.4 to 527. | 4.56992 | 1486.455 | -8.612 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.8 | 209.6 | Acree, 1991 | 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.
Stull, 1937
Stull, D.R.,
A Semi-micro Calorimeter for Measuring Heat Capacities at Low Temp.,
J. Am. Chem. Soc., 1937, 59, 2726. [all data]
Campbell and Chatterjee, 1969
Campbell, A.N.; Chatterjee, R.M.,
The critical constants and orthobaric densities of acetone, chloroform benzene, and carbon tetrachloride,
Can. J. Chem., 1969, 47, 3893-8. [all data]
Campbell and Chatterjee, 1968
Campbell, A.N.; Chatterjee, R.M.,
Orthobaric Data of Certain Pure Liquids in the Neighborhood of the Critical Point,
Can. J. Chem., 1968, 46, 575-81. [all data]
Herz and Neukirch, 1923
Herz, W.; Neukirch, E.,
On Knowldge of the Critical State,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1923, 104, 433-50. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Manion, 2002
Manion, J.A.,
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons,
J. Phys. Chem. Ref. Data, 2002, 31, 1, 123-172, https://doi.org/10.1063/1.1420703
. [all data]
Majer, Sváb, et al., 1980
Majer, V.; Sváb, L.; Svoboda, V.,
Enthalpies of vaporization and cohesive energies for a group of chlorinated hydrocarbons,
The Journal of Chemical Thermodynamics, 1980, 12, 9, 843-847, https://doi.org/10.1016/0021-9614(80)90028-2
. [all data]
Mathews, 1926
Mathews, J.H.,
The accurate measurement of heats of vaporization of liquids,
J. Am. Chem. Soc., 1926, 48, 562-576. [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]
Chen, Wang, et al., 1995
Chen, Geng-Hua; Wang, Qi; Ma, Zhong-Min; Yan, Xin-Huan; Han, Shi-Jun,
Phase equilibria at superatmospheric pressures for systems containing halohydrocarbon, aromatic hydrocarbon, and alcohol,
J. Chem. Eng. Data, 1995, 40, 2, 361-366, https://doi.org/10.1021/je00018a003
. [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]
Boublík and Aim, 1972
Boublík, T.; Aim, K.,
Heats of vaporization of simple non-spherical molecule compounds,
Collect. Czech. Chem. Commun., 1972, 37, 11, 3513-3521, https://doi.org/10.1135/cccc19723513
. [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]
Scatchard and Raymond, 1938
Scatchard, George; Raymond, C.L.,
Vapor---Liquid Equilibrium. II. Chloroform---Ethanol Mixtures at 35, 45 and 55°,
J. Am. Chem. Soc., 1938, 60, 6, 1278-1287, https://doi.org/10.1021/ja01273a002
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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