Simultaneous determination of iodine and iodide by potentiometric titration Potentiometric titration with potassium iodate. I
A two step curve was obtained in potentiometric titration of potassium iodide by standard potassium iodate solution in 4 N hydrochloric acid. The two, first and second, steps in the titration curve corresponded, respectively, to the reactions I--e→I0 and I0-e→I+, and 0.140.014 M potassium iodide cou...
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| Published in | BUNSEKI KAGAKU Vol. 18; no. 5; pp. 583 - 588 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
The Japan Society for Analytical Chemistry
05.05.1969
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| Online Access | Get full text |
| ISSN | 0525-1931 |
| DOI | 10.2116/bunsekikagaku.18.583 |
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| Summary: | A two step curve was obtained in potentiometric titration of potassium iodide by standard potassium iodate solution in 4 N hydrochloric acid. The two, first and second, steps in the titration curve corresponded, respectively, to the reactions I--e→I0 and I0-e→I+, and 0.140.014 M potassium iodide could be determined accurately. Iodine and potassium iodide in their mixture could be successively determined by one titration. The error was 0.2% and 0.4% for 25 mg of iodine and 90 mg of potassium iodide, respectively. |
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| ISSN: | 0525-1931 |
| DOI: | 10.2116/bunsekikagaku.18.583 |