Aniline
- Formula: C6H7N
- Molecular weight: 93.1265
- IUPAC Standard InChIKey: PAYRUJLWNCNPSJ-UHFFFAOYSA-N
- CAS Registry Number: 62-53-3
- 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: Benzenamine; Aminobenzene; Aminophen; Anyvim; Benzene, amino-; Blue Oil; C.I. 76000; Phenylamine; Aniline Oil; Aniline reagent; Anilin; Anilina; Benzidam; C.I. Oxidation base 1; Cyanol; Huile D'aniline; Krystallin; Kyanol; NCI-C03736; Rcra waste number U012; UN 1547; Benzeneamine
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Phase change data
Go To: Top, IR Spectrum, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 457. ± 2. | K | AVG | N/A | Average of 46 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 267.0 ± 0.3 | K | AVG | N/A | Average of 19 out of 24 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 267.13 | K | N/A | Hatton, Hildenbrand, et al., 1962 | Uncertainty assigned by TRC = 0.02 K; from plot of 1/f vs T; TRC |
Ttriple | 267.300 | K | N/A | Ziegler and Andrews, 1942 | Uncertainty assigned by TRC = 0.2 K; TRC |
Ttriple | 266.9 | K | N/A | Parks, Huffman, et al., 1933 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 698.8 ± 0.4 | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 52.4 ± 0.2 | atm | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.48 | mol/l | N/A | Lagutkin and Kuropatkin, 1981 | Uncertainty assigned by TRC = 0.05 mol/l; calculated from corr. Zc, and lit. values of Tc and Pc; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Zc | 0.26 | none | N/A | Lagutkin and Kuropatkin, 1981 | Uncertainty assigned by TRC = 0.003 none; Correlation based on literature values of 2nd vireal coeff.; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13. ± 1. | kcal/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.2 ± 0.05 | 360. | EB | Steele, Chirico, et al., 2002 | Based on data from 350. to 499. K.; AC |
11.5 ± 0.05 | 400. | EB | Steele, Chirico, et al., 2002 | Based on data from 350. to 499. K.; AC |
10.8 ± 0.05 | 440. | EB | Steele, Chirico, et al., 2002 | Based on data from 350. to 499. K.; AC |
10.1 ± 0.1 | 480. | EB | Steele, Chirico, et al., 2002 | Based on data from 350. to 499. K.; AC |
10.9 | 444. | N/A | Lee, Chen, et al., 1992 | Based on data from 421. to 591. K.; AC |
12.5 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. to 338. K.; AC |
12.8 | 319. | A | Stephenson and Malanowski, 1987 | Based on data from 304. to 485. K.; AC |
11.6 | 388. | A | Stephenson and Malanowski, 1987 | Based on data from 373. to 458. K.; AC |
11.1 | 470. | A | Stephenson and Malanowski, 1987 | Based on data from 455. to 523. K.; AC |
10.14 | 457.2 | N/A | Majer and Svoboda, 1985 | |
12.3 | 350. | N/A | Maher and Smith, 1979 | Based on data from 313. to 386. K.; AC |
12.6 | 293. | N/A | Ravdel and Danilov, 1968 | Based on data from 288. to 298. K.; AC |
12.9 | 319. | N/A | Hatton, Hildenbrand, et al., 1962, 2 | Based on data from 304. to 457. K.; AC |
12.7 | 333. | C | Hatton, Hildenbrand, et al., 1962, 2 | 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 333. | 19.28 | 0.3744 | 699. | 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 |
---|---|---|---|---|---|
304. to 457. | 4.33970 | 1661.858 | -74.048 | Hatton, Hildenbrand, et al., 1962, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.5189 | 267.13 | Hatton, Hildenbrand, et al., 1962, 2 | DH |
2.519 | 267.1 | Ahmed and Eades, 1972 | See also Domalski and Hearing, 1996.; AC |
2.610 | 267.3 | Ziegler and Andrews, 1942, 2 | AC |
2.5229 | 266.8 | Parks, Huffman, et al., 1933, 2 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.457 | 266.8 | Parks, Huffman, et al., 1933, 2 | DH |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
- LIQUID (NEAT); BECKMAN IR-7 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3800-1300, 10% IN CS2 FOR 1300-650, 10% IN CCl4 FOR 650-250 CM-1) VERSUS SOLVENT; PERKIN-ELMER 521 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
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.
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 | NIST Mass Spectrometry Data Center, 1998. |
NIST MS number | 290555 |
References
Go To: Top, Phase change data, IR Spectrum, 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.
Hatton, Hildenbrand, et al., 1962
Hatton, W.E.; Hildenbrand, D.L.; Sinke, G.C.; Stull, D.R.,
Chemical Thermodynamic Properties of Aniline,
J. Chem. Eng. Data, 1962, 7, 229. [all data]
Ziegler and Andrews, 1942
Ziegler, W.T.; Andrews, D.H.,
The heat capacity of benzene-d6,
J. Am. Chem. Soc., 1942, 64, 2482. [all data]
Parks, Huffman, et al., 1933
Parks, G.S.; Huffman, H.M.; Barmore, M.,
Thermal Data on Organic Compounds. XI. The Heat Capacities, Entropies and Free Energies of Ten Compounds Containing Oxygen or Nitrogen,
J. Am. Chem. Soc., 1933, 55, 7, 2733, https://doi.org/10.1021/ja01334a016
. [all data]
Lagutkin and Kuropatkin, 1981
Lagutkin, O.D.; Kuropatkin, E.I.,
Critical coefficient of compressibility and critical dens. of aniline,
Zh. Fiz. Khim., 1981, 55, 1329. [all data]
Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor Pressure, Heat Capacity, and Density along the Saturation Line: Measurements for Benzenamine, Butylbenzene, sec -Butylbenzene, tert -Butylbenzene, 2,2-Dimethylbutanoic Acid, Tridecafluoroheptanoic Acid, 2-Butyl-2-ethyl-1,3-propanediol, 2,2,4-Trimethyl-1,3-pentanediol, and 1-Chloro-2-propanol,
J. Chem. Eng. Data, 2002, 47, 4, 648-666, https://doi.org/10.1021/je010083e
. [all data]
Lee, Chen, et al., 1992
Lee, Chang Ha; Chen, Quen; Mohamed, Rahoma S.; Holder, Gerald D.,
Vapor-liquid equilibria in the system of toluene/aniline, aniline/naphthalene, and naphthalene/quinoline,
J. Chem. Eng. Data, 1992, 37, 2, 179-183, https://doi.org/10.1021/je00006a011
. [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]
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]
Maher and Smith, 1979
Maher, Patrick J.; Smith, Buford D.,
A new total pressure vapor-liquid equilibrium apparatus. The ethanol + aniline system at 313.15, 350.81, and 386.67 K,
J. Chem. Eng. Data, 1979, 24, 1, 16-22, https://doi.org/10.1021/je60080a022
. [all data]
Ravdel and Danilov, 1968
Ravdel, A.A.; Danilov, V.V.,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1968, 11, 6, 642. [all data]
Hatton, Hildenbrand, et al., 1962, 2
Hatton, W.E.; Hildenbrand, D.L.; Sinke, G.C.; Stull, D.R.,
Chemical thermodynamic properties of aniline,
J. Chem. Eng. Data, 1962, 7, 229-231. [all data]
Ahmed and Eades, 1972
Ahmed, A.M.I.; Eades, R.G.,
Proton relaxation in solid aniline and some methyl derivatives,
J. Chem. Soc., Faraday Trans. 2, 1972, 68, 2017, https://doi.org/10.1039/f29726802017
. [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]
Ziegler and Andrews, 1942, 2
Ziegler, W.T.; Andrews, D.H.,
The heat capacity of benzene-d6,
J. Am. Chem. Soc., 1942, 64, 2482-2485. [all data]
Parks, Huffman, et al., 1933, 2
Parks, G.S.; Huffman, H.M.; Barmore, M.,
Thermal data on organic compounds. XI. The heat capacities,
entropies and free energies of ten compounds containing oxygen or nitrogen. J. Am. Chem. Soc., 1933, 55, 2733-2740. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Zc Critical compressability factor ΔfusH Enthalpy of fusion ΔfusS Entropy 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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