Benzene, 1-methyl-3-nitro-
- Formula: C7H7NO2
- Molecular weight: 137.1360
- IUPAC Standard InChIKey: QZYHIOPPLUPUJF-UHFFFAOYSA-N
- CAS Registry Number: 99-08-1
- 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: Toluene, m-nitro-; m-Methylnitrobenzene; m-Nitrotoluene; MNT; 1-Methyl-3-nitrobenzene; 3-Nitrotoluene; 3-Methylnitrobenzene; 3-Nitrotoluol; UN 1664; 3-Methyl-1-nitrobenzene
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Reaction thermochemistry data, 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:
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 |
---|---|---|---|---|---|
ΔfH°liquid | -46.0 | kJ/mol | Ccb | Swarts, 1914 | See 14SWA2; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3723.5 ± 3.3 | kJ/mol | Ccb | Lenchitz, Velicky, et al., 1971 | ALS |
ΔcH°liquid | -3737. | kJ/mol | Ccb | Garner and Abernethy, 1921 | ALS |
ΔcH°liquid | -3721.9 | kJ/mol | Ccb | Swarts, 1914 | See 14SWA2; ALS |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
202.1 | 302.4 | de Kolossowsky and Udowenko, 1934 | DH |
Phase change data
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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 | 503.7 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 505.8 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 503.95 | K | N/A | Lecat, 1930 | Uncertainty assigned by TRC = 0.4 K; not clear that this is a new measurement; TRC |
Tboil | 504. | K | N/A | Dessart, 1926 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 288.59 | K | N/A | Gross, Saylor, et al., 1933 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 289. | K | N/A | Dessart, 1926 | Uncertainty assigned by TRC = 2. K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
56.6 ± 2.5 | 303. | GS | Widegren and Bruno, 2010 | Based on data from 293. to 313. K.; AC |
52.8 | 413. | EB | Aim, 1994 | Based on data from 397. to 452. K.; AC |
49.8 | 368. | A | Stephenson and Malanowski, 1987 | Based on data from 353. to 505. K.; AC |
Reaction thermochemistry data
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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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: Br- + C7H7NO2 = (Br- • C7H7NO2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.5 ± 7.5 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff at 423 K, ΔSaff taken as that of mCF3-nitrobenzene..Br-; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 92. | J/mol*K | N/A | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 27. ± 4.2 | kJ/mol | IMRE | Paul and Kebarle, 1991 | gas phase; ΔGaff at 423 K, ΔSaff taken as that of mCF3-nitrobenzene..Br-; B |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
26. | 423. | PHPMS | Paul and Kebarle, 1991 | gas phase; Entropy change calculated or estimated; M |
C7H6NO2- + =
By formula: C7H6NO2- + H+ = C7H7NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1518. ± 8.8 | kJ/mol | G+TS | Caldwell and Bartmess | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1488. ± 8.4 | kJ/mol | IMRE | Caldwell and Bartmess | gas phase; value altered from reference due to change in acidity scale; B |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
- LIQUID; Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% CCl4 FOR 3800-1330, 10% CS2 FOR 1330-400 CM-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
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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
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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-2183 |
NIST MS number | 228168 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.
Swarts, 1914
Swarts, F.,
Sur la chaleur de combustion de quelques derives nitres aromatlques,
Recl. Trav. Chim. Pays-Bas, 1914, 33, 281-298. [all data]
Lenchitz, Velicky, et al., 1971
Lenchitz, C.; Velicky, R.W.; Silvestro, G.; Schlosberg, L.P.,
Thermodynamic properties of several nitrotoluenes,
J. Chem. Thermodyn., 1971, 3, 689-692. [all data]
Garner and Abernethy, 1921
Garner, W.E.; Abernethy, C.L.,
Heats of combustion and formation of nitro-compounds. Part I. - Benzene, toluene, phenol and methylaniline series,
Proc. Roy. Soc. London A, 1921, 213-235. [all data]
de Kolossowsky and Udowenko, 1934
de Kolossowsky, N.; Udowenko, W.W.,
Determination des chaleurs specifiques des liquides,
Compt. rend., 1934, 198, 1394-1395. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Lecat, 1930
Lecat, M.,
Azeotropism in Binary Mixtures Containing an Alcohol Mixed with an amine, a nitro derivative, an ether or water.,
Z. Anorg. Allg. Chem., 1930, 186, 119. [all data]
Dessart, 1926
Dessart, A.,
Theory of Concentrated Solutions: III. Physical Constants of Mixtures of m-Nitrotoluene and m-Toluidine with Some Hydrocarbons,
Bull. Soc. Chim. Belg., 1926, 35, 9. [all data]
Gross, Saylor, et al., 1933
Gross, P.M.; Saylor, J.H.; Gorman, M.A.,
Solubility studies: IV the solubilities of certain slightly soluble organic compounds in water,
J. Am. Chem. Soc., 1933, 55, 650-2. [all data]
Widegren and Bruno, 2010
Widegren, Jason A.; Bruno, Thomas J.,
Gas Saturation Vapor Pressure Measurements of Mononitrotoluene Isomers from (283.15 to 313.15) K «8224»,
J. Chem. Eng. Data, 2010, 55, 1, 159-164, https://doi.org/10.1021/je900293j
. [all data]
Aim, 1994
Aim, Karel,
Saturated Vapor Pressure Measurements on Isomeric Mononitrotoluenes at Temperatures between 380 and 460 K,
J. Chem. Eng. Data, 1994, 39, 3, 591-594, https://doi.org/10.1021/je00015a044
. [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]
Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P.,
Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-,
J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014
. [all data]
Caldwell and Bartmess
Caldwell, G.; Bartmess, J.E.,
, Unpublished results. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid T Temperature Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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