sulfonate: meaning, definition, pronunciation and examples
C1/C2 (Specialized)Technical/Scientific
Quick answer
What does “sulfonate” mean?
A salt or ester of a sulfonic acid (chemical compound).
Audio
Pronunciation
Definition
Meaning and Definition
A salt or ester of a sulfonic acid (chemical compound).
In chemistry, any compound containing the sulfonate ion (SO₃⁻) group; often used in detergents, dyes, and pharmaceuticals. Can also refer to the process of introducing a sulfonate group into an organic molecule.
Dialectal Variation
British vs American Usage
Differences
Minor spelling preference: 'sulphonate' is a common British variant, though 'sulfonate' (following IUPAC recommendations) is increasingly used in technical writing globally.
Connotations
Identical technical meaning. The 'sul*ph*onate' spelling may be perceived as slightly more traditional in the UK.
Frequency
The spelling 'sulfonate' is significantly more common in American English. In British English, 'sulphonate' retains noticeable frequency in non-specialist publications.
Grammar
How to Use “sulfonate” in a Sentence
sulfonate [noun] (e.g., sulfonate the benzene ring)be sulfonatedVocabulary
Collocations
Examples
Examples of “sulfonate” in a Sentence
noun
British English
- The most common sulphonate in this detergent is sodium dodecylbenzenesulphonate.
- The reaction yielded a mixture of different sulphonate isomers.
American English
- This industrial cleaner uses a linear alkylbenzene sulfonate as its active ingredient.
- The calcium sulfonate complex provides excellent corrosion inhibition.
verb
British English
- The final step is to sulphonate the aromatic ring using oleum.
- The compound was sulphonated to increase its water solubility.
American English
- We need to sulfonate this hydrocarbon chain to create an effective surfactant.
- The naphthalene derivative was sulfonated under mild conditions.
Usage
Meaning in Context
Business
Rare; might appear in reports on chemical manufacturing, ingredient sourcing for cosmetics or detergents.
Academic
Common in chemistry, biochemistry, materials science, and environmental engineering papers.
Everyday
Very rare; limited to reading ingredient lists on cleaning or personal care products.
Technical
Core term in organic, industrial, and environmental chemistry.
Vocabulary
Synonyms of “sulfonate”
Neutral
Weak
Watch out
Common Mistakes When Using “sulfonate”
- Misspelling as 'sulphonate' in contexts demanding IUPAC nomenclature.
- Confusing 'sulfonate' (noun/verb) with 'sulfate' (a different ion).
- Using it as a general term for 'detergent' rather than a specific chemical class.
FAQ
Frequently Asked Questions
No. Sulfate (SO₄²⁻) and sulfonate (R-SO₃⁻) are different chemical ions with distinct structures and properties. Sulfonates are organic derivatives of sulfonic acids.
It depends entirely on the specific compound. Many sulfonates (e.g., in detergents) are safe in regulated amounts. Others, like some perfluorinated sulfonates, are persistent pollutants. The term itself only describes a chemical class.
'Sulph-' is the traditional British English spelling derived from Latin 'sulphur'. 'Sulf-' is the American spelling and the one recommended by the International Union of Pure and Applied Chemistry (IUPAC).
Yes, in chemistry. 'To sulfonate' means to introduce a sulfonic acid group (-SO₃H) or its salt (-SO₃⁻) into an organic molecule.
A salt or ester of a sulfonic acid (chemical compound).
Sulfonate is usually technical/scientific in register.
Sulfonate: in British English it is pronounced /ˈsʌlfəneɪt/, and in American English it is pronounced /ˈsʌlfəˌneɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'SULfur' in a chemical compound that has been turned into a sALT or ESTER – SULFON-ATE.
Conceptual Metaphor
A chemical 'handle' or 'tag' (the sulfonate group) that makes a molecule more soluble in water or reactive.
Practice
Quiz
What is the primary industrial application of alkylbenzene sulfonates?