The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids
Chemical processes at the hydrous-oxide solution interface – protonation of surface OH-groups and surface coordination with ligands (anions) – are important for understanding the dissolution of solid oxide phases. It is shown that the dissolution rate of δ-Al2O3 in dilute acids (pH 2.5-6) depends d...
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| Format: | Article |
| Language: | deu |
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Swiss Chemical Society
1983-09-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9593 |
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| _version_ | 1849311348347895808 |
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| author | Gerhard Furrer Werner Stumm |
| author_facet | Gerhard Furrer Werner Stumm |
| author_sort | Gerhard Furrer |
| collection | DOAJ |
| description |
Chemical processes at the hydrous-oxide solution interface – protonation of surface OH-groups and surface coordination with ligands (anions) – are important for understanding the dissolution of solid oxide phases. It is shown that the dissolution rate of δ-Al2O3 in dilute acids (pH 2.5-6) depends directly on the extent of surface protonation and on the concentration of surface complexes formed in the presence of oxalate, salicylate, citrate and benzoate.
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| format | Article |
| id | doaj-art-32276a63ce5245d2bce1561c4ef29709 |
| institution | Kabale University |
| issn | 0009-4293 2673-2424 |
| language | deu |
| publishDate | 1983-09-01 |
| publisher | Swiss Chemical Society |
| record_format | Article |
| series | CHIMIA |
| spelling | doaj-art-32276a63ce5245d2bce1561c4ef297092025-08-20T03:53:27ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24241983-09-0137910.2533/chimia.1983.338The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute AcidsGerhard Furrer0Werner Stumm1Institute for Water Resources and Water Pollution Control (EAWAG) Swiss Federal Institute of Technology (ETH) ZurichInstitute for Water Resources and Water Pollution Control (EAWAG) Swiss Federal Institute of Technology (ETH) Zurich Chemical processes at the hydrous-oxide solution interface – protonation of surface OH-groups and surface coordination with ligands (anions) – are important for understanding the dissolution of solid oxide phases. It is shown that the dissolution rate of δ-Al2O3 in dilute acids (pH 2.5-6) depends directly on the extent of surface protonation and on the concentration of surface complexes formed in the presence of oxalate, salicylate, citrate and benzoate. https://www.chimia.ch/chimia/article/view/9593 |
| spellingShingle | Gerhard Furrer Werner Stumm The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids CHIMIA |
| title | The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids |
| title_full | The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids |
| title_fullStr | The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids |
| title_full_unstemmed | The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids |
| title_short | The Role of Surface Coordination in the Dissolution of δ-Al2O3 in Dilute Acids |
| title_sort | role of surface coordination in the dissolution of δ al2o3 in dilute acids |
| url | https://www.chimia.ch/chimia/article/view/9593 |
| work_keys_str_mv | AT gerhardfurrer theroleofsurfacecoordinationinthedissolutionofdal2o3indiluteacids AT wernerstumm theroleofsurfacecoordinationinthedissolutionofdal2o3indiluteacids AT gerhardfurrer roleofsurfacecoordinationinthedissolutionofdal2o3indiluteacids AT wernerstumm roleofsurfacecoordinationinthedissolutionofdal2o3indiluteacids |