{"title":"Crystallization of Palladium(II)-Pyridylazophenol Complex at the Liquid-Liquid Interface","authors":"A. Ohashi, Takafusa Kiminarita","doi":"10.15261/SERDJ.28.133","DOIUrl":null,"url":null,"abstract":"The crystallization of the palladium(II) complex with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (HL) at the liquid-liquid interface was investigated in the heptane-toluene mixture/water system. Interfacial crystallization of PdLCl did not occur in the heptane/water system, whereas it occurred in the heptane-toluene mixture/water system. The crystal size distribution of PdLCl formed at the liquid-liquid interface strongly depended on the PdLCl solubility in the organic phase and the formation rate. Larger PdLCl crystals formed at the liquid-liquid interface under the higher toluene ratio, higher Pd(II) concentration and lower pH conditions.","PeriodicalId":21805,"journal":{"name":"Solvent Extraction Research and Development, Japan","volume":"1 1","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solvent Extraction Research and Development, Japan","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.15261/SERDJ.28.133","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The crystallization of the palladium(II) complex with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (HL) at the liquid-liquid interface was investigated in the heptane-toluene mixture/water system. Interfacial crystallization of PdLCl did not occur in the heptane/water system, whereas it occurred in the heptane-toluene mixture/water system. The crystal size distribution of PdLCl formed at the liquid-liquid interface strongly depended on the PdLCl solubility in the organic phase and the formation rate. Larger PdLCl crystals formed at the liquid-liquid interface under the higher toluene ratio, higher Pd(II) concentration and lower pH conditions.
期刊介绍：
Solvent Extraction Research and Development, Japan (Solvent Extr. Res. Dev., Jpn.) is a periodical issued from Japan Association of Solvent Extraction (JASE) containing papers dealing with all aspects of solvent extraction and their related methods, underlying principles, and materials. Original articles, notes, technical reports, and critical reviews will be considered for publication. Original articles must be of reasonably broad scope and significance to the solvent extraction. Notes will originally describe novel work of a limited nature or especially significant work in progress. Authors can contribute some information of novel techniques, equipment or apparatus, reagents and diluents for solvent extraction as technical reports. Critical reviews will be received from the authors to whom the editorial committee asked to contribute.
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