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EnglishThe hydrolysis of Al 3+ was studied in aqueous 1 mol L -1 NaNO 3 solution at different concentrations (20 - 200mmol L -1) and temperatures (283.15 -343.15 K) by potentiometry (ISE-H +, glass electrode). Many different speciation models were considered in the calculations and it was found that the best model is represented by the following species: Al(OH) 2+, Al 3 (OH) 4 5+, Al 13(OH) 32 7+. Hydrolysis constants and enthalpy changes at different temperatures are reported.
| Titolo: | Speciation of Al3+ in fairly concentrated solutions (20 to 200 mmol L-1) at I = 1 mol L-1 (NaNO3), in the acidic pH range, at different temperatures. | |
| Autori: | ||
| Data di pubblicazione: | 2011 | |
| Rivista: | ||
| Abstract: | The hydrolysis of Al 3+ was studied in aqueous 1 mol L -1 NaNO 3 solution at different concentrations (20 - 200mmol L -1) and temperatures (283.15 -343.15 K) by potentiometry (ISE-H +, glass electrode). Many different speciation models were considered in the calculations and it was found that the best model is represented by the following species: Al(OH) 2+, Al 3 (OH) 4 5+, Al 13(OH) 32 7+. Hydrolysis constants and enthalpy changes at different temperatures are reported. | |
| Handle: | http://hdl.handle.net/11570/1904634 | |
| Appare nelle tipologie: | 14.a.1 Articolo su rivista |
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