Abstract
Abstract The reaction of nickel (II) with [5-(4-nitrophenylazo)salicylic acid] Alizarin yellow R (AYR) as a primary ligand and eosin as a secondary ligand was studied spectrophotometrically in the presence of Tween 80, 50 % (v/v) ethanol-water medium and an ionic strength of 0.1 M (NaClO4). The solution spectra of the mixed-ligand complex formed are characterized by high intensity (ɛ = 3.3 × 105 L mol-1cm-1) charge transfer at 575 nm. The study reveals the formation of an ion-association complex having the composition Ni: AYR: eosin (2: 1: 2), and the corresponding molecular formula is (Ni)2(AYR)(eosin)2. The optimum conditions for the spectrophotometric determination of Ni (II) have been established. A simple, sensitive, and selective method was proposed for the determination of Ni (II). The method has been applied successfully for the micro determination of Ni(II) in pharmaceutical samples. The mechanism of the reaction was also discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
