Coulometric–potentiometric determination of pKA of several organic bases in propylene carbonate
The pKA values of protonated triethylamine, pyridine and 2,2'-dipyridyl in propylene carbonate (PC) were determined by applying the coulometric––potentiometric method and a hydrogen/palladium generator anode (H2/Pd). The investigated and reference base were titrated to 50 % with protons electro...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2008-06-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.shd.org.rs/JSCS/Vol73/No6/JSCS-3747.pdf |
| Summary: | The pKA values of protonated triethylamine, pyridine and 2,2'-dipyridyl in propylene carbonate (PC) were determined by applying the coulometric––potentiometric method and a hydrogen/palladium generator anode (H2/Pd). The investigated and reference base were titrated to 50 % with protons electrogenerated from hydrogen-saturated palladium, in the presence of sodium perchlorate as the supporting electrolyte. The half-neutralization potentials E1/2(x) and E1/2(st.) of the investigated and standard base, respectively, were measured using a glass–SCE pair. The obtained pKA values were compared with those reported in the literature. |
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| ISSN: | 0352-5139 |