boron
硼,硼酸,钴,硼元素
Definitions
- 1
Chemistry.
- : a nonmetallic element occurring naturally only in combination, as in borax or boric acid, and obtained in either an amorphous or a crystalline form when reduced from its compounds. Symbol: B; atomic weight: 10.811; atomic number: 5.
Examples
In the new compound, boron atoms fill some additional empty space around the cage.
Normally, chemists would expect the boron to form bonds with the hydrogen, rather than simply acting to pen in the hydrogen cage.
New York-based glass company Corning won a $204 million government grant in June specifically so it could increase production of its sturdy glass, which is made without boron.
His results indicated that fruits are relatively rich in boron.
Tobacco is so rich in boron that it can be detected in the ash of one cigarette.
Before the introduction of Gooch's process it was usual to determine the boron trioxide "by difference."
Consequently, the increase in weight, after ignition, upon that of the lime taken gives the amount of boron trioxide present.
There is only one series of boron compounds which have any importance.