methyl chloroformate: meaning, definition, pronunciation and examples
Very Low (C2/Professional)Highly technical, scientific (specialist chemistry, industrial safety)
Quick answer
What does “methyl chloroformate” mean?
A highly toxic, volatile, and corrosive organic chemical compound (CH₃OCOCl) used as a reagent and chemical intermediate.
Audio
Pronunciation
Definition
Meaning and Definition
A highly toxic, volatile, and corrosive organic chemical compound (CH₃OCOCl) used as a reagent and chemical intermediate.
A colorless, flammable liquid ester with a pungent odour, primarily employed in industrial chemical synthesis and in laboratory settings for introducing the methoxycarbonyl group. It is classified as a lachrymator and a hazardous material due to its toxicity and reactivity.
Dialectal Variation
British vs American Usage
Differences
No significant differences in terminology or spelling.
Connotations
None beyond its strict technical definition and associated dangers.
Frequency
Identical and extremely low, confined to highly specialised contexts in both varieties.
Grammar
How to Use “methyl chloroformate” in a Sentence
[Substance] + is synthesized using + methyl chloroformate[Person/Process] + handles + methyl chloroformate + with careThe reaction of + [Compound] + with + methyl chloroformate + yields...Vocabulary
Collocations
Examples
Examples of “methyl chloroformate” in a Sentence
adjective
British English
- The methyl chloroformate solution must be kept anhydrous.
- A methyl chloroformate derivative was isolated.
American English
- The methyl chloroformate solution must be kept anhydrous.
- A methyl chloroformate derivative was isolated.
Usage
Meaning in Context
Business
Only in the context of chemical supply, industrial manufacturing, or safety regulation compliance.
Academic
Primary context: research papers, advanced chemistry textbooks, and laboratory procedure manuals in organic synthesis.
Everyday
Virtually never used. Would only appear in extreme circumstances like major industrial accident reports.
Technical
The sole domain of use: chemical engineering, industrial chemistry, occupational safety sheets (SDS/MSDS), and specialised organic synthesis.
Vocabulary
Synonyms of “methyl chloroformate”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “methyl chloroformate”
- Misspelling as 'methyl chloroformiate' or 'methylchloroformate' (though the latter is sometimes accepted).
- Incorrect pronunciation placing stress on 'methyl' instead of the primary stress on '-for-' of 'formate'.
FAQ
Frequently Asked Questions
No, they are completely different compounds. Methyl chloride (CH₃Cl) is a simple gas, while methyl chloroformate (CH₃OCOCl) is a more complex and significantly more hazardous liquid ester.
It is primarily used in the fine chemical and pharmaceutical industries as a reagent for chemical synthesis, and in some agrochemical manufacturing processes.
Absolutely not. It is an extremely hazardous substance requiring advanced training, specialised equipment (like fume hoods), and is subject to strict regulatory controls. Its use is confined to professional industrial and research laboratories.
Immediately evacuate the area, alert trained personnel, and follow the specific emergency procedures outlined in the Safety Data Sheet (SDS). This typically involves trained responders using appropriate personal protective equipment (PPE) and spill containment materials.
A highly toxic, volatile, and corrosive organic chemical compound (CH₃OCOCl) used as a reagent and chemical intermediate.
Methyl chloroformate is usually highly technical, scientific (specialist chemistry, industrial safety) in register.
Methyl chloroformate: in British English it is pronounced /ˌmɛθaɪl ˌklɔːrəʊˈfɔːmeɪt/, and in American English it is pronounced /ˌmɛθəl ˌklɔːroʊˈfɔːrmeɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: METHYL (the simplest carbon group) + CHLORO (contains chlorine) + FORMATE (related to formic acid/ester). A 'formate' ester that is methylated and chlorinated.
Conceptual Metaphor
None applicable. The term is purely denotative and technical.
Practice
Quiz
What is the primary safety concern associated with methyl chloroformate?