Safety data for methyl methacrylate
Click here for data on methyl methacrylate in student-friendly format, from the HSci project
The information on this web page is provided to help you to work safely, but it is intended to be an overview of hazards, not a replacement for a full Material Safety Data Sheet (MSDS). MSDS forms can be downloaded from the web sites of many chemical suppliers.
Toxicity data
Risk phrases
Safety phrases
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This information was last updated on March 3, 2009.
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for it. General
Synonyms: 2-methylmethacrylate, 2-(methoxycarbonyl)propene,
2-methyl acrylic acid methyl ester, diakon,
methyl methacrylate monomer, methyl alpha-methacrylate,
methyl 2-methyl-2-propenoate, MME, NCI-C50680, methacrylic acid methyl ester,
diakon, 2-methyl-2-propenoic acid methyl ester, Acryester M, Light ester M,
Pegalan, TEB 3K
Use: acrylic bone cements, acrylic polymers, fillers, adhesives
and many other uses
Molecular formula: CH2=C(CH3)COOCH3
CAS No: 80-62-6
EINECS No: 201-297-1
Annex I Index No: 607-035-00-6
Physical data
Appearance: colourless liquid
Melting point: -48 C
Boiling point: 100 C
Vapour density: 3.45 (air = 1)
Vapour pressure: 29 mm Hg at 20 C
Density (g cm-3): 0.936
Flash point: 10 C (closed cup)
Explosion limits: 2.1 - 12.5%
Autoignition temperature: 435 C
Water solubility: moderate
Stability
Prone to autopolymerisation, especially in light; typically inhibited with ca.
10 ppm hydroquinone momomethyl ether or 25 ppm
hydroquinone.
Incompatible with strong
oxidizing agents, peroxides, bases, acids, reducing agents,
amines, halogens, nitric acid, nitrates, polymerization
catalysts. Light sensitive. Highly flammable. May react violently with
polymerization initiators.
Toxicology
Respiratory and skin irritant. Lachrymator.
May act as a sensitizer by skin contact. Typical exposure limits
in the range 25 to 50 ppm.
(The meaning of any toxicological abbreviations which
appear in this section is given
here.)
ORL-RAT LD50 7872 mg kg-1
IHL-RAT LC50 3750 ppm
IPR-RAT LD50 1328 mg kg-1
SCU-RAT LD50 7500 mg kg-1
IPR-GPG LD50 LD50 2000 mg kg-1
ORL-MUS LD50 5204 mg kg-1
IHL-HMN TCLO 125 ppm
(The meaning of any risk phrases which appear in this section is
given
here.)
R11 R37 R38 R43.
Transport information
(The meaning of any UN hazard codes which appear in this section
is given
here.)
UN No 1247. Hazard class 3. Packing group II.
Personal protection
Safety glasses, good ventilation. Keep off skin.
(The meaning of any safety phrases which appear in this section
is given here.)
S24 S37 S46.