Science Fair Project Encyclopedia
Boron trifluoride
Boron trifluoride (BF3, trifluoroborane) is a pungent colourless toxic gas. In moist air it forms white fumes. Boron trifluoride can be handled as a liquid in a Lewis acid-base adduct with diethyl ether. The molecule BF3 consists of boron and fluorine in a trigonal planar geometry.
Boron is electron deficient and in chemical reactions BF3 is a Lewis acid, for example reacting with fluorides to form tetrafluoroborate salts:
CsF + BF3 → CsBF4
Uses:
- applied as dopant in ion implantation
- initiates polymerisation reactions of unsaturated compounds. Example polyethers
References
Material safety datasheets:
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details