出典:Wikipedia
出典:『Wikipedia』 (2011/06/05 10:44 UTC 版)
Borates are chemical compounds which contain oxoanions of boron in oxidation state +3. The simplest borate ion, BO33−, has a trigonal planar structure. Other borates are made up of trigonal BO3 or tetrahedral BO4 structural units, sharing oxygen atoms. Boron occurs in nature mainly as borate minerals and borosilicates.