2,4-Dimethylstyrene
- Formula: C10H12
- Molecular weight: 132.2023
- IUPAC Standard InChIKey: OEVVKKAVYQFQNV-UHFFFAOYSA-N
- CAS Registry Number: 2234-20-0
- 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: Benzene, 1-ethenyl-2,4-dimethyl-; Styrene, 2,4-dimethyl-; 1-Vinyl-2,4-dimethylbenzene; 1,3-Dimethyl-4-ethenylbenzene; 1,3-Dimethyl-4-vinylbenzene; 2,4-Dimethyl-1-vinylbenzene; 4-vinyl-m-xylene
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Phase change data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 208.83 | K | N/A | Schwartzman and Corson, 1956 | Uncertainty assigned by TRC = 0.4 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
346.7 | 0.013 | Aldrich Chemical Company Inc., 1990 | BS |
352.7 | 0.016 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.0 | 322. | A | Stephenson and Malanowski, 1987 | Based on data from 307. to 453. K. See also Stull, 1947.; AC |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
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
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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, 1994 |
NIST MS number | 136251 |
UV/Visible spectrum
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Fihtengolts, et al., 1969 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 20124 |
Instrument | SF-4 |
Boiling point | 79-80/ 12 mm |
Gas Chromatography
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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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | HP-1 | 100. | 1081. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 1082. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | SE-30 | 70. | 1075.4 | Tóth, 1983 | N2; Column length: 15. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 130. | 1100. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | SE-30 | 80. | 1083. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | Squalane | 86. | 1080.9 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1084.2 | Macák, Nabivach, et al., 1982 | N2; Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 96. | 1084.2 | Nabivach, Bur'yan, et al., 1978 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 65. | 1079.8 | Svob and Deur-Siftar, 1974 | He; Column length: 25.5 m; Column diameter: 0.5 mm |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | PEG-20M | 70. | 1440.5 | Tóth, 1983 | N2; Column length: 30. m; Column diameter: 0.3 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polymethylsiloxane, (PMS-20000) | 1075. | Cornwell and Cordano, 2003 | Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1440. | Cornwell and Cordano, 2003 | Program: not specified |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Schwartzman and Corson, 1956
Schwartzman, L.H.; Corson, B.B.,
Steric Hinderance. II. The Rates of Dehalogenation of Methyl- and Dimethylstyrene Dibromides,
J. Am. Chem. Soc., 1956, 78, 322. [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]
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]
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]
Fihtengolts, et al., 1969
Fihtengolts, V.S., et al.,
Atlas of UV Absorption Spectra of Substances Used in Synthetic Rubbers Manufacture, 1969, 13. [all data]
Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J.,
Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions,
Chromatographia, 1992, 33, 3/4, 138-146, https://doi.org/10.1007/BF02275894
. [all data]
Tóth, 1983
Tóth, T.,
Use of capillary gas chromatography in collecting retention and chemical information for the analysis of complex petrochemical mixtures,
J. Chromatogr., 1983, 279, 157-165, https://doi.org/10.1016/S0021-9673(01)93614-3
. [all data]
Bredael, 1982
Bredael, P.,
Retention indices of hydrocarbons on SE-30,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1982, 5, 6, 325-328, https://doi.org/10.1002/jhrc.1240050610
. [all data]
Macák, Nabivach, et al., 1982
Macák, J.; Nabivach, V.; Buryan, P.; Sindler, S.,
Dependence of retention indices of alkylbenzenes on their molecular structure,
J. Chromatogr., 1982, 234, 2, 285-302, https://doi.org/10.1016/S0021-9673(00)81867-1
. [all data]
Nabivach, Bur'yan, et al., 1978
Nabivach, V.M.; Bur'yan, P.; Matsak, I.,
Retention indices of aromatic hydrocarbons on a squalane capillary column,
Zh. Anal. Khim., 1978, 33, 7, 1108-1113. [all data]
Svob and Deur-Siftar, 1974
Svob, V.; Deur-Siftar, D.,
Kovats Retention Indices in the Identification of Alkylbenzene Degradation Products,
J. Chromatogr., 1974, 91, 677-689, https://doi.org/10.1016/S0021-9673(01)97947-6
. [all data]
Cornwell and Cordano, 2003
Cornwell, E.; Cordano, G.,
Nueva proposicion para predecir datos de retencion obtenidos mediante cromatografia de gases de hidrocarburos derivados de las naftas,
Revista de la Sociedad Quimica de Mexico, 2003, 47, 1, 38-43. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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