Английская Википедия:Ammonium tetrafluoroborate
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Шаблон:Short description Шаблон:Chembox Ammonium tetrafluoroborate (or ammonium fluoroborate) is an inorganic salt composed of the ammonium cation and the tetrafluoroborate anion, with the chemical formula NH4BF4. When heated to decomposition, ammonium tetrafluoroborate releases toxic fumes of hydrogen fluoride, nitrogen oxides, and ammonia.[1]
Preparation
Ammonium tetrafluoroborate can be prepared by reacting ammonium fluoride with boric and sulfuric acid:[2]
- 8 NH4F + 2 H3BO3 + 3 H2SO4 → 2 NH4BF4 + 3 (NH4)2SO4 + 6 H2O
References
Шаблон:Ammonium salts Шаблон:Tetrafluoroborates