Methyl methacrylate
- Formula: C5H8O2
- Molecular weight: 100.1158
- IUPAC Standard InChIKey: VVQNEPGJFQJSBK-UHFFFAOYSA-N
- CAS Registry Number: 80-62-6
- 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: 2-Propenoic acid, 2-methyl-, methyl ester; Methacrylic acid methyl ester; Diakon; Methyl 2-methyl-2-propenoate; Methyl 2-methylpropenoate; MMA; Pegalan; CH2=C(CH3)COOCH3; Methyl-α-methacrylate; Monocite methacrylate monomer; Metakrylan metylu; Methacrylate de methyle; Methacrylsaeuremethyl ester; Methyl α-methylacrylate; Methyl methylacrylate; Methyl-methacrylat; Methylmethacrylaat; Metil metacrilato; NCI-C50680; Paladon; 2-Methylacrylic acid, methyl ester; Acrylic acid, 2-methyl-, methyl ester; Methylester kyseliny methakrylove; Methyl methacrylate monomer; 2-Methyl-2-propenoic acid methyl ester; Rcra waste number U162; Methyl ester of 2-methyl-2-propenoic acid; 2-(Methoxycarbonyl)-1-propene; Acryester M; NSC 4769; TEB 3K; 2-Methylacrylic, methyl ester
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Phase change data
Go To: Top, Gas phase ion energetics 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 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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 373.4 ± 0.5 | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 225.4 ± 0.5 | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 225.59 | K | N/A | Lebedev and Rabinovich, 1971 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.58 | kcal/mol | V | Vilcu, Perisanu, et al., 1975 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
9.27 ± 0.02 | 300. | EB | Steele, Chirico, et al., 2002 | Based on data from 295. to 386. K.; AC |
8.68 ± 0.05 | 340. | EB | Steele, Chirico, et al., 2002 | Based on data from 295. to 386. K.; AC |
7.96 ± 0.1 | 380. | EB | Steele, Chirico, et al., 2002 | Based on data from 295. to 386. K.; AC |
9.06 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. to 373. K.; AC |
9.1 | 320. | N/A | Boublik, Fried, et al., 1984 | Based on data from 305. to 373. K.; AC |
9.01 | 333. | N/A | Hull and Lu, 1984 | Based on data from 318. to 348. K.; AC |
9.3 | 327. | N/A | Brockhaus and Jenckel, 1956 | Based on data from 312. to 362. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
312.4 to 362.3 | 5.37214 | 1945.56 | -7.569 | Brockhaus and Jenckel, 1956 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.5 | 205. | Bywater, 1952 | Based on data from 194. to 223. K. See also Jones, 1960.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.2149 | 225.5 | Karabaev, Abduzhaminov, et al., 1985 | DH |
3.4500 | 225.59 | Lebedev and Rabinovich, 1971 | DH |
2.925 | 225. | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.26 | 225.5 | Karabaev, Abduzhaminov, et al., 1985 | DH |
15.3 | 225.59 | Lebedev and Rabinovich, 1971 | DH |
Gas phase ion energetics data
Go To: Top, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 198.7 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 191.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.7 | PE | Van Dam and Oskam, 1978 | LLK |
10.06 | PE | Van Dam and Oskam, 1978 | Vertical value; LLK |
10.28 | PE | Sustmann and Trill, 1972 | Vertical value; LLK |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedev and Rabinovich, 1971
Lebedev, B.V.; Rabinovich, I.B.,
Heat capacities and thermodynamic functions of methyl methacrylate and poly(methyl methacrylate),
Tr. Khim. Khim. Tekhnol., 1971, 1, 8-11. [all data]
Vilcu, Perisanu, et al., 1975
Vilcu, R.; Perisanu, S.; Ciocazanu, I.,
Heats of formation in the ideal gas state of some substances containing carbon, hydrogen and oxygen,
Conf. Int. Thermodyn. Chim. C.R. 4th, 1975, 1, 105-112. [all data]
Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A.,
Thermodynamic Properties and Ideal-Gas Enthalpies of Formation for trans -Methyl Cinnamate, α-Methyl Cinnamaldehyde, Methyl Methacrylate, 1-Nonyne, Trimethylacetic Acid, Trimethylacetic Anhydride, and Ethyl Trimethyl Acetate,
J. Chem. Eng. Data, 2002, 47, 4, 700-714, https://doi.org/10.1021/je010086r
. [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]
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]
Hull and Lu, 1984
Hull, Diane M.; Lu, Benjamin C.Y.,
Vapor-liquid equilibria in mixtures of cyclohexane and methyl methacrylate,
J. Chem. Eng. Data, 1984, 29, 4, 417-419, https://doi.org/10.1021/je00038a014
. [all data]
Brockhaus and Jenckel, 1956
Brockhaus, Von A.; Jenckel, E.,
Über die kinetik des thermischen abbaues von polymethacrylsäuremethylester.,
Makromol. Chem., 1956, 18, 1, 262-293, https://doi.org/10.1002/macp.1956.020180124
. [all data]
Bywater, 1952
Bywater, S.,
Vapor pressures of methyl methacrylate and styrene,
J. Polym. Sci., 1952, 9, 5, 417-422, https://doi.org/10.1002/pol.1952.120090503
. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Karabaev, Abduzhaminov, et al., 1985
Karabaev, M.K.; Abduzhaminov, T.P.; Kenisarin, M.M.; Saidov, A.A.,
Thermodynamics of the crystal-liquid phase transition in acrylates and methacrylates, Izv. Akad. Nauk Uzb. SSR,
Ser. Fiz.-Mat. Nauk, 1985, (5), 74-77. [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]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Van Dam and Oskam, 1978
Van Dam, H.; Oskam, A.,
He(I) and He(II) photoelectron spectra of some substituted ethylenes,
J. Electron Spectrosc. Relat. Phenom., 1978, 13, 273. [all data]
Sustmann and Trill, 1972
Sustmann, R.; Trill, H.,
Photoelektronenspektroskopische Bestimmung von Substituenten-Effekten. II. α,β-ungesattigte Carbonester,
Tetrahedron Lett., 1972, 42, 4271. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔsubH Enthalpy of sublimation 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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