V2EX diprotic

Diprotic

定义 Definition

(化学)二元酸的;二质子的:指一种酸在水溶液中最多能释放两个 H(质子),通常分两步电离(如硫酸 HSO、碳酸 HCO)。也可泛指与“可提供两个质子/有两个可电离氢”相关的性质。

发音 Pronunciation (IPA)

/daprtk/

例句 Examples

A diprotic acid can donate two protons.
二元酸可以释放两个质子。

When titrating a diprotic acid, you may observe two equivalence points because it dissociates in two steps.
滴定二元酸时,你可能会观察到两个当量点,因为它分两步电离。

词源 Etymology

di- 表示“二、两个”,**-protic** 来自 proton(质子)。合起来字面意思就是“两个质子(可释放)的”,用于描述酸能分步释放两个 H 的特性。

相关词 Related Words

文学与著作中的用例 Literary Works

  • General Chemistry(多版通用化学教材,如 Ebbing & Gammon 等):在酸碱章节讨论一元酸、二元酸与多元酸时常出现 diprotic
  • Chemistry: The Central Science(Brown, LeMay 等):讲解分步电离、滴定曲线与当量点时常用 diprotic acid
  • Atkins’ Physical Chemistry(Atkins):在酸碱平衡与溶液化学相关章节中会用到 diprotic 来描述特定体系的质子转移行为。
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