温馨提示:本站仅提供公开网络链接索引服务,不存储、不篡改任何第三方内容,所有内容版权归原作者所有
AI智能索引来源:http://www.wehd.com/7/Barium.html
点击访问原文链接

Barium. World English Historical Dictionary

Barium. World English Historical Dictionary Dictionary Biographies Literary Criticism Welcome Terms of Service ⧏ Previous Next ⧐ Contents Slice Contents Key Bibliographic Record Murray’s New English Dictionary. 1888, rev. 2024. Barium Chem. Rarely (and obs.) baryum. [f. BAR-YTA, -YTES + -IUM; cf. soda, sodium. Davy purposely discarded the second syllable of baryta, as in his proposed alumium from alumina, and magnium from magnesia.] A white metallic element, not found native, but as the basis of the alkaline earth baryta. First separated by Sir H. Davy in 1808.

1 1808.  Sir H. Davy, in Phil. Trans., XCVIII. 346. I shall venture to denominate the metals from the alkaline earths, barium, strontium, calcium, and magnium.

2 1819.  [See BARIA].

3 1873.  Watts, Fownes’ Chem., 357. Barium occurs as sulphate and carbonate, forming the veinstone in many lead mines.

4   attrib.  1869.  Roscoe, Chem., 221. Barium compounds occur somewhat more widely dispersed than those of strontium.

5 © 2024 WEHD.com

智能索引记录