methyl sulfate: meaning, definition, pronunciation and examples
C2/TechnicalFormal, Scientific, Technical
Quick answer
What does “methyl sulfate” mean?
A chemical compound formed by combining a methyl group (CH₃-) with a sulfate group (SO₄²⁻), often referring to dimethyl sulfate (CH₃)₂SO₄, a toxic alkylating agent.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound formed by combining a methyl group (CH₃-) with a sulfate group (SO₄²⁻), often referring to dimethyl sulfate (CH₃)₂SO₄, a toxic alkylating agent.
In technical contexts, can refer to various salts or esters where a methyl group is attached to a sulfate anion, with dimethyl sulfate being the most common and industrially significant compound due to its use as a methylating agent in organic synthesis.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows regional norms for accompanying text (e.g., sulphate vs. sulfate). The chemical name 'methyl sulfate' is standard internationally, though British texts may historically favour 'methyl sulphate'.
Connotations
Identical technical connotations of toxicity and reactivity in both varieties.
Frequency
Extremely low frequency in general language, exclusive to technical domains. Equal frequency in relevant scientific literature in both regions.
Grammar
How to Use “methyl sulfate” in a Sentence
[Substance] is methylated with methyl sulfate.[Reaction] requires methyl sulfate as a reagent.The formation of methyl sulfate occurs via...Vocabulary
Collocations
Examples
Examples of “methyl sulfate” in a Sentence
verb
British English
- The phenol was methylated using methyl sulphate.
- They advise to methylate cautiously.
American English
- The compound was methylated with methyl sulfate.
- We need to methylate this substrate.
adverb
British English
- The group was added methylatively.
- The sample was treated methyl-sulphate-wise. (Highly contrived)
American English
- The substrate reacted methylatively.
- The procedure was performed using a methyl sulfate method. (Adverbial phrase)
adjective
British English
- The methyl sulphate reagent must be handled in a fume cupboard.
- A methyl-sulphate-mediated reaction.
American English
- The methyl sulfate reagent must be handled in a fume hood.
- A methyl-sulfate-catalyzed process.
Usage
Meaning in Context
Business
Only in specific chemical manufacturing, pharmaceutical, or R&D business contexts, relating to supply, safety protocols, or production costs.
Academic
Core term in advanced chemistry, biochemistry, and toxicology papers, theses, and textbooks.
Everyday
Virtually never used. Would only appear in warnings or safety sheets for specialists.
Technical
Primary domain of use: organic synthesis protocols, chemical hazard documentation, industrial process descriptions, patent literature.
Vocabulary
Synonyms of “methyl sulfate”
Strong
Neutral
Weak
Vocabulary
Antonyms of “methyl sulfate”
Watch out
Common Mistakes When Using “methyl sulfate”
- Incorrect pluralisation ('methyl sulfates' is rare; prefer 'methyl sulfate compounds').
- Misspelling as 'methyl sulphite' (a different ion).
- Using without necessary specifier (e.g., 'methyl sulfate' instead of 'dimethyl sulfate') where clarity is needed.
- Incorrect stress on 'methyl' (first syllable).
FAQ
Frequently Asked Questions
In common technical parlance, 'methyl sulfate' often refers to dimethyl sulfate [(CH₃)₂SO₄]. However, strictly speaking, 'methyl sulfate' can be ambiguous and may refer to other salts or esters. For precision, always specify 'dimethyl sulfate' (DMS).
Dimethyl sulfate (the common methyl sulfate) is highly toxic, corrosive, and a potent carcinogen. It can alkylate DNA and proteins, and its vapours are harmful to the eyes, skin, and respiratory system, often with delayed symptom onset.
Its primary use is as a methylating agent in the chemical and pharmaceutical industries for synthesising various products, including dyes, perfumes, and certain drugs. Its use is declining due to safety concerns and the development of safer alternatives.
The chemical name follows the international '-ate' suffix for salts/esters of sulfuric acid. However, in British English, the word 'sulphate' (with 'ph') is traditional in general texts, while American English uses 'sulfate' (with 'f'). The compound name itself, e.g., 'dimethyl sulfate/sulphate', may reflect this spelling difference in non-technical writing.
A chemical compound formed by combining a methyl group (CH₃-) with a sulfate group (SO₄²⁻), often referring to dimethyl sulfate (CH₃)₂SO₄, a toxic alkylating agent.
Methyl sulfate is usually formal, scientific, technical in register.
Methyl sulfate: in British English it is pronounced /ˈmɛθaɪl ˈsʌlfeɪt/, and in American English it is pronounced /ˈmɛθəl ˈsʌlfeɪt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None. Technical term not used idiomatically.”
Learning
Memory Aids
Mnemonic
Think: METHYL (one carbon) + SULFATE (sulfur with four oxygens) = a simple but potent chemical tool.
Conceptual Metaphor
Not applicable for common metaphors. In pedagogy, may be framed as a 'delivery truck' that carries and donates a methyl group to other molecules.
Practice
Quiz
What is the most typical referent of the term 'methyl sulfate' in industrial chemistry?