anionic compound
- noun
- /ˌæn.aɪˈɒn.ɪk ˈkɒm.paʊnd/
- Specialized
- Sodium dodecyl sulfate is a common anionic compound used in detergents and cleaning products.
Examples
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The presence of an anionic compound can increase the solubility of some metal ions in water.
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Researchers analyzed the properties of the anionic compound under different temperatures.
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An anionic compound can be used in various chemical reactions.
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Sodium chloride is not an anionic compound.
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Sodium dodecyl sulfate is a well-known anionic compound that helps to break down grease in household cleaners.
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The anionic compound in the solution reacted with the cations to form a precipitate.
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Laboratory experiments showed that the anionic compound improved the effectiveness of the chemical catalyst.
Surface Forms
Morphology
The noun phrase is directly compositional: 'anionic' means containing anions (negatively charged ions) and 'compound' means a chemical substance, so the phrase denotes a compound that contains anions. This follows a regular adjective + noun pattern that is cross-linguistically common, so a B1 learner who knows both constituents would be able to derive the meaning (noting that the vocabulary is technical).
Etymology
Anionic compound The term anionic compound comes from anion, a word for a tiny particle with a 'negative' electric charge, and compound, meaning a substance made of parts. So an anionic compound is a chemical made mostly of those negatively charged parts, which is why it means 'a chemical whose active part is an anion'.