Methyl cyanoacrylate

Methyl cyanoacrylate (MCA) is an organic compound that contains several functional groups: a methyl ester, a nitrile, and an alkene. It is a colorless liquid with low viscosity. Its chief use is as the main component of cyanoacrylate glues.[3] It can be encountered under many trade names. Methyl cyanoacrylate is less commonly encountered than ethyl cyanoacrylate.

Methyl cyanoacrylate
Names
Preferred IUPAC name
Methyl 2-cyanoprop-2-enoate
Other names
Methyl 2-cyanopropenoate
Methyl 2-cyanoacrylate
2-Cyano-2-propenoic acid methyl ester
MCA
Methyl alpha-cyanoacrylate
Mecrylate
Ad/here
Adhere
CA 7
Cemedine 3000
Coapt
Cyanobond 5000
Eastman 910
Fimofix P 1048
Mecrilat
Mecrilate
Sicomet 7000
Three Bond 1701[1]
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.004.796
UNII
Properties
C5H5NO2
Molar mass 111.1 g/mol
Density 1.1
Melting point −40 °C (−40 °F; 233 K)
Boiling point 48 to 49 °C (118 to 120 °F; 321 to 322 K) (2.5-2.7 mm Hg)
30% (20°C)[2]
Vapor pressure 0.2 mmHg (25°C)[2]
Hazards
Flash point 79 °C; 174 °F; 352 K [2]
NIOSH (US health exposure limits):
PEL (Permissible)
 none[2]
REL (Recommended)
 TWA 2 ppm (8 mg/m3) ST 4 ppm (16 mg/m3)[2]
IDLH (Immediate danger)
 N.D.[2]
Related compounds
Ethyl cyanoacrylate
Butyl cyanoacrylate
Octyl cyanoacrylate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

It is soluble in acetone, methyl ethyl ketone, nitromethane, and dichloromethane.[4] MCA polymerizes rapidly in presence of moisture.

Safety

Heating the polymer causes depolymerization of the cured MCA, producing gaseous products which are a strong irritant to the lungs and eyes. With regards to occupational exposure to MCA, the National Institute for Occupational Safety and Health recommends workers do not exceed exposures over 2 ppm (8 mg/m3) over an eight-hour workshift, or over 4ppm (16 mg/m3) over a short-term exposure.[5]

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References
  1. Methyl 2-cyanoacrylate at Cameo Chemicals
  2. NIOSH Pocket Guide to Chemical Hazards. "#0405". National Institute for Occupational Safety and Health (NIOSH).
  3. Methyl 2-cyanoacrylate at Inchem.org
  4. Palm Labs Adhesives Archived 2008-12-08 at the Wayback Machine
  5. CDC - NIOSH Pocket Guide to Chemical Hazards
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