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.
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| 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) |
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| ChemSpider | |
| ECHA InfoCard | 100.004.796 |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| 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 | |
Related Cyanoacrylates |
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]
References
- Methyl 2-cyanoacrylate at Cameo Chemicals
- NIOSH Pocket Guide to Chemical Hazards. "#0405". National Institute for Occupational Safety and Health (NIOSH).
- Methyl 2-cyanoacrylate at Inchem.org
- Palm Labs Adhesives Archived 2008-12-08 at the Wayback Machine
- CDC - NIOSH Pocket Guide to Chemical Hazards