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| Titel: |
Comparison of hydrolysis products of AlCl3·6H2O in different concentrations by electrospray ionization time of flight mass spectrometer (ESI TOF MS) |
| Auteur: |
Sarpola, Arja T. Hietapelto, Vesa K. Jalonen, Jorma E. Jokela, Jukka Ramo, Jaakko H. |
| Verschenen in: |
International journal of environmental analytical chemistry |
| Paginering: | Jaargang 86 (2006) nr. 13 pagina's 1007-1018 |
| Jaar: |
2006-11-15 |
| Inhoud: |
Hydrolysis of 0.100, 0.010, and 0.001 mol L-1 aqueous solutions of AlCl3·6H2O, each at two pH values ranging from 3.27 to 7.00, was compared by electrospray ionization time-of-flight mass spectrometry. The differences between 4 h and 14 day aged solutions were also studied. Various charges and compositions for species of the same size were observed. At lower pH values, dimeric and trimeric aluminium oxo-hydroxo-complexes were the major molecular species. With higher pH levels, precipitation and formation of [image omitted] took place. Multiple charged signals assigned to polynuclear complexes (Al10-Al15) were found at a narrow pH area range before precipitation occurred. The diversity of different species increased strongly as a function of concentration. The pH of the solution dominated the profile even more than the concentration. All the main species were formed in 4 h. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 8 van 20 gevonden artikelen
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