# NIOSH Pocket Guide to Chemical Hazards
Methyl-2-cyanoacrylate | CAS 137-05-3
CH2=C(CN)COOCH3 | RTECS AS7000000
Synonyms & Trade Names Mecrylate, Methyl cyanoacrylate, Methyl alpha-cyanoacrylate, Methyl ester of 2-cyanoacrylic acid | DOT ID & Guide
Exposure Limits | NIOSH REL: TWA 2 ppm (8 mg/m3) ST 4 ppm (16 mg/m3)
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 4.54 mg/m3
Physical Description Colorless liquid with a characteristic odor.
MW: 111.1 | BP: ? | FRZ: ? | Sol: 30%
VP(77°F): 0.2 mmHg | IP: ? |  | Sp.Gr(81°F): 1.10
Fl.P: 174°F | UEL: ? | LEL: ? |
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities Moisture [Note: Contact with moisture causes rapid polymerization.]
Measurement Methods OSHA 55
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Daily Remove: No recommendation Change: No recommendation Provide: Eyewash | First Aid (See procedures) Eye: Irrigate immediately Skin: Water wash Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose; blurred vision, lacrimation (discharge of tears); rhinitis
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION