| 单词 | boron trifluoride |
| 例句 | The boron atom in boron trifluoride, BF3, has only six electrons in its valence shell. Chemistry 2019-02-14T00:00:00Z Boron.—The amorphous variety of boron inflames instantly in fluorine, with projection of brilliant sparks and liberation of dense fumes of boron trifluoride, BF3. Scientific American Supplement, No. 832, December 12, 1891 Elemental boron is chemically inert at room temperature, reacting with only fluorine and oxygen to form boron trifluoride, BF3, and boric oxide, B2O3, respectively. Chemistry 2019-02-14T00:00:00Z |
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