V2EX praseodymium

Praseodymium

Definition / 释义

:一种稀土金属元素,化学符号 Pr,原子序数 59。常用于高性能磁体合金特种玻璃着色陶瓷与某些合金材料中。(也可指其化合物,如氧化镨等)

Pronunciation / 发音

/przidmim/(亦常见 /przidmim/)

Examples / 例句

Praseodymium is a rare earth metal.
镨是一种稀土金属。

Praseodymium compounds can color glass and are used in specialized alloys for high-temperature applications.
镨的化合物可以给玻璃着色,也用于耐高温用途的特种合金中。

Etymology / 词源

praseodymium 来自新拉丁语,源头可追溯到希腊语:prásios(“葱绿、浅绿色”,指其部分盐类呈绿色)+ dídymos(“双生的”)。历史上镨与钕曾一起从“didymium(钕镨混合物)”中被分离出来,因此名称带有“didym-(双生)”的痕迹。

Related Words / 相关词

Literary Works / 文学与著作示例

  • The Elements: A Visual Exploration of Every Known Atom in the Universe(Theodore Gray):以通俗方式介绍包括镨在内的元素与用途。
  • CRC Handbook of Chemistry and Physics:收录镨的物理化学常数与相关数据。
  • Ullmann's Encyclopedia of Industrial Chemistry:在稀土材料与工业应用条目中涉及镨及其化合物。
  • Kirk-Othmer Encyclopedia of Chemical Technology:在稀土元素与材料应用相关章节中出现镨。
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