Propane, 2-bromo-
- Formula: C3H7Br
- Molecular weight: 122.992
- IUPAC Standard InChIKey: NAMYKGVDVNBCFQ-UHFFFAOYSA-N
- CAS Registry Number: 75-26-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Isopropyl bromide; 2-Bromopropane; iso-C3H7Br; sec-Propyl bromide; UN 2344
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Gas phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -22.86 ± 0.25 | kcal/mol | Chyd | Davies, Lacher, et al., 1965 | Reanalyzed by Cox and Pilcher, 1970, Original value = -22.71 kcal/mol |
ΔfH°gas | -23.55 ± 0.46 | kcal/mol | Eqk | Rozhnov and Andreevskii, 1962 | |
ΔfH°gas | -23.55 ± 0.46 | kcal/mol | Ccr | Bjellerup, 1961 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 333. ± 1. | K | AVG | N/A | Average of 15 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 184.2 | K | N/A | Kushner, Crowe, et al., 1950 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 184.55 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 184.05 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 532. | K | N/A | Majer and Svoboda, 1985 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 7.249 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 7.31 | kcal/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 323. to 363. K.; AC |
ΔvapH° | 7.22 ± 0.02 | kcal/mol | C | Wadsö, Murto, et al., 1966 | AC |
ΔvapH° | 7.21 ± 0.02 | kcal/mol | C | Wadso, 1966 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.771 | 332.6 | N/A | Majer and Svoboda, 1985 | |
7.67 | 251. | A | Stephenson and Malanowski, 1987 | Based on data from 236. to 328. K.; AC |
7.19 | 314. | EB | Stephenson and Malanowski, 1987 | Based on data from 299. to 332. K. See also Svoboda, Majer, et al., 1977.; AC |
7.12 ± 0.02 | 305. | C | Svoboda, Majer, et al., 1977 | AC |
6.98 ± 0.02 | 318. | C | Svoboda, Majer, et al., 1977 | AC |
6.81 ± 0.02 | 330. | C | Svoboda, Majer, et al., 1977 | AC |
6.69 ± 0.02 | 338. | C | Svoboda, Majer, et al., 1977 | AC |
7.98 | 226. | N/A | Stull, 1947 | Based on data from 211. to 333. K.; AC |
6.79 | 331.6 | V | Mathews and Fehlandt, 1931 | ALS |
7.39 | 288. | N/A | Rex, 1906 | Based on data from 273. to 303. K. See also Boublik, Fried, et al., 1984.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A (kcal/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
298. to 338. | 10.64 | 0.2812 | 532. | Majer and Svoboda, 1985 |
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 |
---|---|---|---|---|---|
211.4 to 333. | 4.12382 | 1223.475 | -36.642 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
273. to 303. | 4.24955 | 1280.788 | -31.109 | Rex, 1906, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.561 | 184.1 | Kushner, Crowe, et al., 1950, 2 | DH |
1.57 | 184.1 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.48 | 184.1 | Kushner, Crowe, et al., 1950, 2 | DH |
Mass spectrum (electron ionization)
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
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-4951 |
NIST MS number | 228307 |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Davies, Lacher, et al., 1965
Davies, J.; Lacher, J.R.; Park, J.D.,
Reaction heats of organic compounds. Part 4.-Heats of hydrogenation of n- and iso-Propyl bromides and chlorides,
Trans. Faraday Soc., 1965, 61, 2413-2416. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Rozhnov and Andreevskii, 1962
Rozhnov, A.M.; Andreevskii, D.N.,
Equilibrium in the system propene, hydrogen bromide, bromopropane,
Dokl. Akad. Nauk SSSR, 1962, 147, 388-391. [all data]
Bjellerup, 1961
Bjellerup, L.,
On the accuracy of heat of combustion data obtained with a precision moving-bomb calorimetric method for organic bromine compounds,
Acta Chem. Scand., 1961, 15, 121-140. [all data]
Kushner, Crowe, et al., 1950
Kushner, L.M.; Crowe, R.W.; Smyth, C.P.,
The Heat Capacity and Dielectric Constants of Some Alkyl Halides in the Solid State,
J. Am. Chem. Soc., 1950, 72, 1091. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [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]
Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G.,
Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times,
Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3
. [all data]
Wadsö, Murto, et al., 1966
Wadsö, Ingemar; Murto, Maija-Leena; Bergson, Göran; Ehrenberg, L.; Brunvoll, J.; Bunnenberg, E.; Djerassi, Carl; Records, Ruth,
Heats of Vaporization for a Number of Organic Compounds at 25 degrees C.,
Acta Chem. Scand., 1966, 20, 544-552, https://doi.org/10.3891/acta.chem.scand.20-0544
. [all data]
Wadso, 1966
Wadso, I.,
Acta Chem. Scand., 1966, 20, 544. [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]
Svoboda, Majer, et al., 1977
Svoboda, V.; Majer, V.; Veselý, F.; Pick, J.,
Heats of vaporization of alkyl bromides,
Collect. Czech. Chem. Commun., 1977, 42, 6, 1755-1760, https://doi.org/10.1135/cccc19771755
. [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]
Mathews and Fehlandt, 1931
Mathews, J.H.; Fehlandt, P.R.,
The heats of vaporization of some organic compounds,
J. Am. Chem. Soc., 1931, 53, 3212-32. [all data]
Rex, 1906
Rex, A.,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1906, 55, 355. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Rex, 1906, 2
Rex, A.,
Uber die Loslichkeit der Halogenderivate der Kohlenwasserstoffe in Wasser,
Z. Phys. Chem. (Frankfurt/Main), 1906, 55, 355-370. [all data]
Kushner, Crowe, et al., 1950, 2
Kushner, L.M.; Crowe, R.W.; Smyth, C.P.,
The heat capacities and dielectric constants of some alkyl halides in the solid state,
J. Am. Chem. Soc., 1950, 72, 1091-1098. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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