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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
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 | 52.5900 | atm | N/A | Campbell and Chatterjee, 1969 | Uncertainty assigned by TRC = 0.09998 atm; TRC |
Pc | 52.5900 | atm | N/A | Campbell and Chatterjee, 1968 | Uncertainty assigned by TRC = 0.0599 atm; 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° | 7.50 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 7.49 ± 0.02 | kcal/mol | Review | Manion, 2002 | weighted average of several measurements plus a correction for non-ideality; DRB |
ΔvapH° | 7.43 | kcal/mol | C | Majer, Sváb, et al., 1980 | AC |
ΔvapH° | 7.30 ± 0.10 | kcal/mol | V | Mathews, 1926 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 7.02 ± 0.05 kcal/mol; ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.989 | 334.3 | N/A | Majer and Svoboda, 1985 | |
7.36 | 321. | N/A | Chen, Wang, et al., 1995 | Based on data from 306. to 427. K.; AC |
7.60 | 254. | A | Stephenson and Malanowski, 1987 | Based on data from 227. to 269. K.; AC |
7.27 | 348. | A | Stephenson and Malanowski, 1987 | Based on data from 333. to 416. K.; AC |
6.91 | 425. | A | Stephenson and Malanowski, 1987 | Based on data from 410. to 481. K.; AC |
7.19 | 494. | A | Stephenson and Malanowski, 1987 | Based on data from 479. to 523. K.; AC |
7.77 | 275. | EB | Boublík and Aim, 1972 | Based on data from 260. to 333. K.; AC |
8.37 | 230. | N/A | Stull, 1947 | Based on data from 215. to 334. K.; AC |
7.39 | 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 (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
215. to 334.4 | 4.20201 | 1233.129 | -40.953 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
334.4 to 527. | 4.56421 | 1486.455 | -8.612 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.1 | 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.