Methyl acrylate
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CAS
96-33-3
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CH2=CHCOOCH3
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RTECS
AT2800000
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Synonyms & Trade Names
Methoxycarbonylethylene, Methyl ester of acrylic acid, Methyl propenoate
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DOT ID & Guide
1919 / 129P (inhibited)
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Exposure
Limits
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NIOSH REL: TWA 10 ppm (35 mg/m3) [skin]
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OSHA PEL: TWA 10 ppm (35 mg/m3) [skin]
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IDLH
250 ppm
See: 96333
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Conversion
1 ppm = 3.52 mg/m3
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Physical Description
Colorless liquid with an acrid odor.
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MW: 86.1
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BP: 176°F
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FRZ: -106°F
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Sol: 6%
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VP: 65 mmHg
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IP: 9.90 eV
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Sp.Gr: 0.96
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Fl.P: 27°F
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UEL: 25%
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LEL: 2.8%
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Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
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Incompatibilities & Reactivities
Nitrates, oxidizers such as peroxides, strong alkalis [Note: Polymerizes easily; usually contains an inhibitor such as hydroquinone.]
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Measurement Methods
NIOSH 1459, 2552; OSHA 92
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH/OSHA
Up to 100 ppm:
(APF = 10) Any supplied-air respirator*
Up to 250 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, upper respiratory system
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Target Organs
Eyes, skin, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0625 |
