Methyl chloroformate

Agent Name
Methyl chloroformate
CAS Number
79-22-1
Formula
C2-H3-Cl-O2
Major Category
Toxic Gases & Vapors
Methyl chloroformate formula graphical representation
Synonyms
Carbonochloridic acid, methyl ester; Chlorameisensaeure methylester [German]; Chlorocarbonate de methyle [French]; Chlorocarbonic acid methyl ester; Chloroformiate de methyle [French]; Chloroformic acid methyl ester; Formic acid, chloro-, methyl ester; K-Stoff; MCF; Methoxycarbonyl chloride; Methyl chlorocarbonate; Methylchloorformiaat [Dutch]; Methylester kyseliny chlormravenci [Czech]; Methylester kyseliny chloruhlicite [Czech]; Metilcloroformiato [Italian]; TL 438; [ChemIDplus] UN1238
Category
Acid Halides
Description
Colorless liquid with pungent odor; [ICSC]
Sources/Uses
Used to make pesticides, pharmaceuticals and other chemicals; Used as a solvent in the photographic industry; [HSDB]
Comments
Very toxic by inhalation; Causes burns; [ESIS] A corrosive substance that causes lacrimation and may cause lung edema after inhalation of high concentrations; [ICSC] "A concentration of 1 mg/liter (190 ppm) has been lethal in 10 minutes." [CAMEO] Flammable, dangerous fire risk; [Hawley] Very toxic by inhalation and toxic by skin contact and ingestion; Causes burns; Lachrymator; [MSDSonline] See "CHLOROFORMATES."
Biomedical References

Exposure Assessment

TIH
Yes
MAK
0.2 ppm
Vapor Pressure
159 mm Hg
Lethal Concentration
LC50 (rat) = 88 ppm/1h
Explanatory Notes
Flash point = 12 deg C; [ICSC] VP from ChemIDplus;
ERPG-1
Not appropriate
ERPG-2
2 ppm
ERPG-3
5 ppm

Adverse Effects

Lachrymator
Yes
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: