Problem of fluorine release during salt cracking of aniline fluoroboric acid diazotized salts: brick-red turbidity in system 05
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I have been working on the diazotization of aniline derivatives with fluoroboric acids followed by salt decomposition and fluorination, and I have a few questions for everyone. 5. Use potassium iodide to test whether there is an excess of sodium nitrite; my solution is brick-red and turbid, and the color after adding potassium iodide is not good. What should I do? Do I have to prepare potassium iodide and starch solutions by myself for testing? What to do during production in the workshop?
Production in the workshop is controlled based on experience, primarily by regulating temperature and time. Tests are generally not performed.