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…