Preparation, Characterization and Investigation of Extraction Efficiency of m- and p- Substituted Hydroxamic Acids with Some Metals
Nuha Y. ELamin, Elmugdad Ahmed Ali, Rasha Ramadan, Eiman M. Ibrahim
Asian Journal of Applied Chemistry Research · pp. 315–326 · Published 30 Nov 2024
10.9734/ajacr/2024/v15i4314Abstract
Two hydroxamic acids, N-phenyl-N-p-nitrobenzohydroxamic acid (i) and N-phenyl-N-m-nitrobenzohydroxamic acid (ii) were prepared by the partial reduction of nitro benzene with zinc dust and ammonium chloride to give β- phenyl hydroxyl amine which was coupled with p- nitrobenzoyl chloride to give (i) and with m- nitrobenzoyl chloride to give (ii). They were identified by their characteristic-colored reaction with vanadium (V) and iron (lll), melting point, I.R. spectra, 1H n.m.r. and mass spectrometry. The extractive properties of hydroxamic acids towards the metal ions like Fe (lll), Cu (ll), Ni (ll), Co (ll) and V (V) were examined using appropriate organic solvent, which show an increasing with the pH. Also, the effect of para and meta substituted nitro groups was examined and found that there are an increasing in the extraction percent of metal ions by hydroxamic acid containing para substituted compared with meta position.
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