V2EX triprotic

Triprotic

释义 Definition

triprotic(化学):指一种酸能分步电离并最多释放三个质子(H),因此有三个电离常数(Ka、Ka、Ka)。也可泛指“具有三个可电离质子”的酸。

发音 Pronunciation (IPA)

/traprtk/

例句 Examples

A triprotic acid can donate three protons.
三元酸可以提供三个质子。

Phosphoric acid is triprotic, so it dissociates in three steps with different Ka values.
磷酸是三元酸,因此它会以三个步骤电离,并对应不同的电离常数 Ka。

词源 Etymology

tri- 来自希腊语,意为“”;**-protic** 源自与“质子(proton)/提供质子”相关的构词法(常见于描述酸碱性质的术语)。合起来字面意思就是“三(个)可给出质子的”,用于酸碱化学中描述可逐步放出三个 H 的酸。

相关词 Related Words

文献与经典教材用例 Literary / Notable Works

  • Chemistry: The Central Science(Brown, LeMay 等):在酸碱与多元酸(polyprotic acids)章节讨论三元酸(triprotic)与分步电离。
  • General Chemistry(Linus Pauling):在酸碱理论与电离平衡相关内容中使用该类术语说明多步放氢离子过程。
  • Analytical Chemistry(Skoog, West 等):在滴定曲线与多元酸体系(如磷酸)分析中出现 triprotic(或与之等价的描述)。
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