Some solvents and supporting electrolytes studied for electrochemical measurement at liquid/liquid interface

✍ Scribed by Zhisheng Sun; Erkang Wang

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Weight: 543 KB
• Volume: 1
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.1140010606

✦ Synopsis

Solvents used as the organic phase of electrochemical measurement at liquid-liquid interfaces, including phenyl isothiocyanate, o-dichlorobenzene, benzyl cyanide, propiophenone, methyl cyclohexanone, cyclohexanone, and methyl m y 1 ketone, have been studied. Mixing solvents of different polarities in different ratios gives a number of new solvent systems that are suitable for showing a useful "potential window," including the mixed-solvent systems with nitrobenzene plus phenyl isothiocyanate, nitrobenzene plus o-dichlorobenzene, nitrobenzene plus ketones, and the mixed solvent without nitrobenzene, such as phenyl isothiocyanate plus benzyl cyanide, phenyl isothiocyanate plus benzonitrile, o-dichlorobenzene plus benzyl cyanide, and chlorobenzene plus benzonitrile. Supporting electrolytes such as cetylpyridiniuni tetraphenylborate, ethyl violet tetrapheiiylborate, and triheptyl dodecykimmonium tetrapheiiylbordte are also introduced as the organic phase in order t o extend the potential range in the negative direct ion.