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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Jayson, G. G. Parsons, B. J. Swallow, A. J. |
| Copyright Year | 1973 |
| Abstract | In aqueous solution OH radicals react with chloride ions to form initially ClOH–, the rate constant being 4.3 ± 0.4 × 109 l. mol–1 s–1. The rate constant for the dissociation of ClOH– back to OH radicals and chloride ions is 6.1 ± 0.8 × 109 s–1. ClOH– is converted to chlorine atoms via the reaction, ClOH–+ H+→ Cl + H2O (k= 2.1 ± 0.7 × 1010 l. mol–1 s–1 at an ionic strength of unity), the rate constant for the reverse reaction being 1.3 × 103 l. mol–1 s–1(0.3–3.0 × 103 l. mol–1 s–1). Chlorine atoms combine with chloride ions to form Cl–2(k= 2.1 × 1010 l. mol–1 s–1), the rate constant for the dissociation of Cl–2 back to chlorine atoms and chloride ions being 1.1 ± 0.4 × 105 s–1.The absorption spectra of ClOH– and Cl–2 have been measured in the range 230–450 nm. Cl–2 absorption has a maximum at 340 nm where the extinction coefficient is 8.8 ± 0.5 × 103 l. mol–1 cm–1, whereas ClOH– has a maximum at 350 nm with an extinction coefficient of 3.7 ± 0.4 × 103 l. mol–1 cm–1.The reactions of chlorine atoms and Cl–2 with ferrous ions have also been investigated and the constants are 5.9 ± 0.6 × 109 and 1.4 ± 0.2 × 107 l. mol–1 s–1(ionic strength = 0.1 mol l.–1) respectively. The effect of chloride ions on the mechanism of the Fricke dosimeter is discussed. |
| Starting Page | 1597 |
| Ending Page | 1607 |
| Page Count | 11 |
| File Format | |
| ISSN | 03009599 |
| Volume Number | 69 |
| Journal | Journal of the Chemical Society, Faraday Transactions 1 |
| DOI | 10.1039/F19736901597 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Dosimeter Chloride Properties of water Chlorine Ionic strength Hydronium Fricke Dissociative Molar attenuation coefficient |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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