Title: Methyl Formate
CAS Registry Number: 107-31-3
CAS Name: Formic acid methyl ester
Molecular Formula: C2H4O2
Molecular Weight: 60.05
Percent Composition: C 40.00%, H 6.71%, O 53.29%
Line Formula: HCOOCH3
Properties: Colorless flammable liquid, agreeable odor. d1515 0.987. bp 31.5°. nD20 1.3440. Flash pt, closed cup: -2°F (-19°C). mp ~-100°. Sol in about 3.3 parts water; miscible with alcohol.
Melting point: mp ~-100°
Boiling point: bp 31.5°
Flash point: Flash pt, closed cup: -2°F (-19°C)
Index of refraction: nD20 1.3440
Density: d1515 0.987
CAUTION: Potential symptoms of overexposure are eye and nose irritation; chest tightness, dyspnea; visual disturbance; CNS depression. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 210; Patty's Industrial Hygiene and Toxicology vol. 2A, G. D. Clayton, F. E. Clayton, Eds. (Wiley-Interscience, New York, 3rd ed., 1981) p 2263.
Use: Fumigant and larvicide for tobacco and food crops. Fire hazard is avoided by use with CO2.