{"title":"Normalized polarity indices of tri-n‑butyl phosphate metal complexes in ionic liquid using Reichardt’s dye as polarity probe","authors":"Ch. Venkateswara Rao , Alok Rout , K.A. Venkatesan","doi":"10.1016/j.jil.2021.100014","DOIUrl":null,"url":null,"abstract":"<div><p>Exploring the polarity of ionic liquid phase composed of a ligand bonded to metal complex is essential for understanding the insights of solvent extraction. The normalized polarity of the ionic liquid phase composed of the tri-<em>n</em>‑butyl phosphate ligand and metal-ligand complex (metal = U<em>,</em> Nd, Th) was determined by a spectrophotometric technique using Reichardt’s dye as the polarity probe. The polarity was measured as a function of various parameters such as concentration of ionic liquid, concentration of nitric acid, ligand concentration and metal ion concentration of the system. The polarity increased with increase in the concentration of ionic liquid, nitric acid and metal ion in ionic liquid phase. The results are reported in this paper.</p></div>","PeriodicalId":100794,"journal":{"name":"Journal of Ionic Liquids","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772422021000082/pdfft?md5=b1fac9fc2483361e26b4f12b75c50a3e&pid=1-s2.0-S2772422021000082-main.pdf","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Ionic Liquids","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772422021000082","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Exploring the polarity of ionic liquid phase composed of a ligand bonded to metal complex is essential for understanding the insights of solvent extraction. The normalized polarity of the ionic liquid phase composed of the tri-n‑butyl phosphate ligand and metal-ligand complex (metal = U, Nd, Th) was determined by a spectrophotometric technique using Reichardt’s dye as the polarity probe. The polarity was measured as a function of various parameters such as concentration of ionic liquid, concentration of nitric acid, ligand concentration and metal ion concentration of the system. The polarity increased with increase in the concentration of ionic liquid, nitric acid and metal ion in ionic liquid phase. The results are reported in this paper.
探索由配体与金属配合物组成的离子液相的极性对于理解溶剂萃取的见解至关重要。采用Reichardt染料作为极性探针,用分光光度法测定了由磷酸三丁酯配体和金属-配体配合物(金属= U, Nd, Th)组成的离子液相的归一化极性。极性是离子液体浓度、硝酸浓度、配体浓度和体系金属离子浓度等参数的函数。极性随离子液体浓度、硝酸浓度和离子液相中金属离子浓度的增加而增大。本文报道了研究结果。