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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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -83.34 | kcal/mol | N/A | Vilcu and Perisanu, 1980 | Value computed using ΔfHliquid° value of -388.8±4 kj/mol from Vilcu and Perisanu, 1980 and ΔvapH° value of 40.1 kj/mol from missing citation.; DRB |
ΔfH°gas | -81.81 | kcal/mol | N/A | Vilcu and Perisanu, 1980 | Value computed using ΔfHliquid° value of -382.4 kj/mol from Vilcu and Perisanu, 1980 and ΔvapH° value of 40.1 kj/mol from missing citation.; DRB |
ΔfH°gas | -79.12 | kcal/mol | Ccb | Vilcu, Perisanu, et al., 1975 | ALS |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics 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:
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 | -91.40 | kcal/mol | Chyd | Vilcu and Perisanu, 1980 | ALS |
ΔfH°liquid | -92.93 ± 0.96 | kcal/mol | Ccb | Vilcu and Perisanu, 1980 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -651.19 ± 0.96 | kcal/mol | Ccb | Vilcu and Perisanu, 1980 | Corresponding ΔfHºliquid = -92.33 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 63.62 | cal/mol*K | N/A | Lebedev and Rabinovich, 1971 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
45.672 | 298.15 | Zhang, Benson, et al., 1986 | DH |
51.46 | 298.15 | Karabaev, Abduzhaminov, et al., 1985 | T = 225 to 350 K. Equation only. Cp (J/kg*K) = 114.1 + 6.8299 T. Cp data calculated from equation.; DH |
51.46 | 298.15 | Karabaev, Saidov, et al., 1985 | T = 90 to 350 K. Cp(c) = 280.01 + 4.96T J/kg*K (103 to 212 K); Cp(liq) = 114.12 + 6.83T J/kg*K (225.6 to 350 K). Cp data calculated from equation.; DH |
45.98 | 300. | Lebedev and Rabinovich, 1971 | T = 60 to 300 K.; DH |
50.323 | 298.15 | Melia, 1962 | T = 60 to 300 K.; DH |
45.050 | 293. | Erds, Jger, et al., 1952 | T = 20 to 50°C.; DH |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
35.90 | 210. | Sochava and Trapeznikova, 1958 | T = 60 to 210 K.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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:
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, 2 | 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, 2 | DH |
15.3 | 225.59 | Lebedev and Rabinovich, 1971 | DH |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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 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 |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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 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 | NIST Mass Spectrometry Data Center, 2011 |
NIST MS number | 385718 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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.
Vilcu and Perisanu, 1980
Vilcu, R.; Perisanu, S.,
The ideal gas state enthalpies of formation of some monomers,
Rev. Roum. Chim., 1980, 25, 619-624. [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]
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]
Zhang, Benson, et al., 1986
Zhang, D.; Benson, G.C.; Kumaran, M.K.; Lu, B.C.-Y.,
Excess thermodynamic properties for methyl methacrylate + methanol and + ethanol,
J. Chem. Thermodynam., 1986, 18, 149-158. [all data]
Karabaev, Abduzhaminov, et al., 1985
Karabaev, M.; Abduzhaminov, T.P.; Saidov, A.A.; Igamberdyev, Kh.T.,
Thermophysical properties of liquid methacrylic acid and its simple esters, Izv. Akad. Nauk Uzb. SSR,
Ser. Fiz.-Mat. Nauk, 1985, (4), 71-74. [all data]
Karabaev, Saidov, et al., 1985
Karabaev, M.; Saidov, A.A.; Abduzhaminov, T.P.; Kenisarin, M.M.,
Heat capacity and molecular kinetic processes of condensed phase acrylates and methacrylates, Izv. Akad. Nauk UzSSR,
Ser. Fiz.-Math., 1985, (6), 51-54. [all data]
Melia, 1962
Melia, T.P.,
Part VIII-Methylmethacrylate and polymethylmethacrylate,
Polymer, 1962, 3, 317-319. [all data]
Erds, Jger, et al., 1952
Erds, E.; Jger, L.; Pouchly, J.,
Specificka tepla methylesteru a butylesteru kyseliny methakrylove,
Chem. Listy, 1952, 46, 770. [all data]
Sochava and Trapeznikova, 1958
Sochava, I.V.; Trapeznikova, O.N.,
Internal rotation and specific heat of some polymers at low temperatures, Vestn. Leningrad. Univ. 13, No.16,
Ser. Fiz. Khim., 1958, No.3, 65-72. [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, 2
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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Cp,solid Constant pressure heat capacity of solid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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