| Titre : | Kinetics of cyanuric chloride hydrolysis in aqueous solution (2008) |
| Auteurs : | Zhi Yan, Auteur ; Wei-Lan Xue, Auteur ; Zuo-Xiang Zeng, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 n°15, Août 2008) |
| Article en page(s) : | p. 5318–5322 |
| Note générale : | Bibliogr. p. 5321-5322 |
| Langues : | Anglais |
| Tags : | Cyanuric chloride ; Hydrolysis reaction ; Aqueous solution |
| Résumé : | The hydrolysis of cyanuric chloride is investigated as a function of temperature, pH, and cyanuric chloride concentration in liquid phase. The hydrolysis reaction is carried out in water or acetone/water system in the temperature range of 283.15−303.15 K. The hydrolysis rates of cyanuric chloride are monitored at different temperatures and at various pHs. The experiment data show that the hydrolysis rates are independent of pH value when pH ≤ 6, and increase with the pH value when pH ≥ 7. On the basis of the results, it is supposed that the hydrolysis reaction takes place by the unimolecular nucleophilic substitution (SN1) mechanism when pH ≤ 6 and by the bimolecular nucleophilic substitution (SN2) mechanism when pH ≥ 7. Kinetics models corresponding to the mechanisms are proposed as follow: −d(nA/v)/dt = 7.625 × 109e−69298/RTcA for the acidic situation and −d(nA/v)/dt = 7.112 × 1011e−59267/RTcAcB0.5 for the alkaline situation. Experiment data show that the models work well with the average deviations of 2.01% and 9.88%, respectively. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie071289x |
