cation-exchange resin
- noun
- Specialized
:
resina de intercambio catiónico
- A cation-exchange resin is commonly used to remove calcium ions from hard water.
Examples
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Laboratory technicians rely on cation-exchange resin columns to purify samples.
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The performance of a cation-exchange resin depends on its capacity and selectivity.
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The cation-exchange resin effectively removed impurities from the water.
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Many laboratories use cation-exchange resins for chemical analysis.
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A cation-exchange resin is commonly used to remove calcium ions from hard water.
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Laboratory technicians rely on cation-exchange resin columns to purify samples.
-
Many laboratories use cation-exchange resins for chemical analysis.
Synonyms
Tiny hard beads that swap charged particles in water to remove minerals
A plastic material that removes minerals or metals from water by swapping charged particles with the liquid
Antonyms
- Specialized
A man-made material that removes negatively charged ions from water
Surface Forms
Morphology
cation-exchange + resin
The noun denotes a resin that performs cation exchange — compositionally built from 'cation' + 'exchange' modifying 'resin' — so the overall meaning is directly inferable from the parts. Although the term is technical (and 'cation' may be unfamiliar to many B1 learners), if a learner knows the constituent words the modifier+noun composition follows regular English patterns and is transparent.
Etymology
Cation-exchange resin is named for what it does: a resin with negative spots that attract 'positive ions' called cations. The exchange part means the resin 'swaps' those cations with others in the solution, so it removes or replaces certain positive ions and that is why the name describes its job.
