Discussion Diazotization for the Schiemann synthesis is usually effected in hydrochloric acid, and sodium fluoborate is the most convenient source of the fluoborate ion. If the precipitated diazonium fluoborate is dried as such, it contains varying amounts of coprecipitated sodium chloride, which may affect the final thermal decomposition reaction. Recrystallization of the benzenediazonium fluoborate is impractical for large-scale ...
