请输入您要查询的英文单词:

 

单词 lecanoric
释义 lecanoric, a. Chem.|lɛkəˈnɒrɪk|
[f. Lecanora, the name of a genus of lichens.]
lecanoric acid: a crystalline substance obtained by Schunck from certain members of the genus Lecanora of lichens. Hence lecanorate |-ˈɔərət|, a salt of lecanoric acid; lecanorin |-ˈɔərɪn| = lecanoric acid.
1844Fownes Chem. 488 Fresh dye-lichens, exhausted by ether, yield a crystalline substance, which when purified by solution in alcohol, is perfectly white; to this the name lecanorine has been given.1852Ibid. (ed. 4) 577 Boiled with water for some time, erythric acid absorbs 2 eq. and yields picro-erythrin..and a new acid..which is termed by some chemists lecanoric, by others orsellinic acid.1865Watts Dict. Chem. III. 565 The lecanorates gradually decompose, especially when heated, yielding orsellinic acid, and ultimately orcin.
随便看

 

英语词典包含277258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:2024/9/20 6:40:30