Palladium(II) extraction using different ionic liquid-based aqueous biphasic systems was written by Song, Feiyue;Xue, Yongbo;Gao, Xin;Bai, Ling;Li, Jing;Deng, Yun;Xie, Lijuan;Ruan, Wenquan. And the article was included in Yingyong Huaxue in 2019.Application In Synthesis of 1-Methyl-3-propylimidazolium Chloride This article mentions the following:
To establish a green and efficient method to extract the precious metal palladium, we used an aqueous biphasic system(ABS) formed by “green solvent” ionic liquids and potassium phosphate to extract Pd(II) without addnl. extractants. We also determined the bimodal curves and tie-lines of 6 imidazolium-based ionic liquids by turbidity point method. The results indicate that there is no significant difference in phase forming ability and extraction rate between chloride-based and bromide-based ionic liquids The hydrophobicity of the side chain on the cation is one of the key factors affecting phase forming ability of ionic liquids Compared to ionic liquid without functional groups on the side chain of cation, the introduction of amino group and nitrile group on the side chain reduces the phase forming ability, but increases the extraction rate by 11.57% and 34.26%, resp. Moreover, the extraction rate by ionic liquid with nitrile group could reach 100% when the concentrations of ionic liquid and potassium phosphate were 5.00% and 39.55%, resp. The conclusions of this work could provide theor. basis and data support for the design or choose of ionic liquids for efficient extraction of palladium(II) by its aqueous biphasic system. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Application In Synthesis of 1-Methyl-3-propylimidazolium Chloride).
1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Application In Synthesis of 1-Methyl-3-propylimidazolium Chloride
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem