| 单词 | boron trifluoride |
| 释义 | boron trifluoridenoun : a colorless pungent gas BF3 that fumes in moist air, that is made usually by reaction of a boron compound (such as borax) with a fluoride (such as hydrogen fluoride) and then sulfuric acid, and that is used chiefly as an acidic catalyst in organic reactions (such as alkylations and polymerizations) |
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