Preparation and application of tantalum reagent_Kain Industrial Additive

Background and overview[1-3] Tantalum reagent is also called N-benzoylphenylhydroxylamine, which can be prepared by acylation of phenylhydraline and benzoyl chloride. In analysis, tantalum reagent (BPHA) extraction photometry is commonly used to determine the content of vanadium. Preparation[1] The tantalum reagent is compound 2 in the picture below. In a 500mL three-neck round-bottomed flask, add 18g…