请输入您要查询的英文单词:

 

单词 percarbonate
释义

percarbonaten.

Brit. /pəːˈkɑːbəneɪt/, /pəːˈkɑːbənət/, U.S. /pərˈkɑrbənət/
Origin: Formed within English, by derivation. Etymons: per- prefix, carbonate n.
Etymology: < per- prefix + carbonate n.
Chemistry.
A salt containing the anion C2O62− or CO42−.
ΚΠ
1821 Philos. Trans. (Royal Soc.) 111 297 I have considerable doubt of the existence of a percarbonate of iron at any temperature.
1873 J. J. Moorman Mineral Springs of N. Amer. xxix. 204 The waters of these springs..contain traces of sulphate of magnesia, with sulphate, percarbonate, and chloride of lime.
1922 H. J. H. Fenton Notes Qualitative Anal. (new ed.) Suppl. 175 Hydrogen Dioxide... It is also obtained by action of acids on hydrated barium dioxide or from percarbonates, perborates, etc.
1968 L. M. Miall & D. W. A. Sharp New Dict. Chem. (ed. 4) 440/1 Recent work has suggested that most percarbonates are normal carbonates with hydrogen peroxide of crystallization.
1990 Which? Apr. 188/1 The Ecover laundry bleach is sodium percarbonate, an oxygen-based bleach that isn't harmful to the environment.
This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2022).
<
n.1821
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/21 5:29:56