Methylacrylonitrile
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CAS
126-98-7
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CH2=C(CH3)CN
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RTECS
UD1400000
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Synonyms & Trade Names
2-Cyanopropene-1, 2-Cyano-1-propene, Isoprene cyanide, Isopropenylnitrile, Methacrylonitrile, alpha-Methylacrylonitrile, 2-Methylpropenenitrile
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DOT ID & Guide
3079 / 131P (inhibited)
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Exposure
Limits
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NIOSH REL: TWA 1 ppm (3 mg/m3) [skin]
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 2.74 mg/m3
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Physical Description
Colorless liquid with an odor like bitter almonds.
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MW: 67.1
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BP: 195°F
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FRZ: -32°F
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Sol: 3%
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VP(77°F): 71 mmHg
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IP: ?
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Sp.Gr: 0.80
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Fl.P: 34°F
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UEL: 6.8%
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LEL: 2%
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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
Strong acids, strong oxidizers, alkali, light [Note: Polymerization may occur due to elevated temperature, visible light, or contact with a concentrated alkali.]
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Measurement Methods
None available
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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
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; lacrimation (discharge of tears); in animals: convulsions, loss of motor control in hind limbs
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Target Organs
Eyes, skin, central nervous system
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See also: INTRODUCTION See ICSC CARD: 0652
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