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单词 Counteranion
释义

Counteranion

英语百科

Counterion

Polystyrene sulfonate, a cation exchange resin, is typically supplied with Na+ as the counterion.

A counterion (pronounced as two words, i.e. "counter" "ion", and sometimes written as two words) is the ion that accompanies an ionic species in order to maintain electric neutrality. In table salt (NaCl), the sodium cation is the counterion for the chlorine anion and vice versa.

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