Preparation of gelatinous aluminium hydroxide from aqueous solutions of organic aluminium salts by reaction with alkali
| Autor: | Shuji Ikoma, Taicho Sato, Misao Suzuki |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
inorganic chemicals
Aqueous solution Pseudoboehmite Aluminium hydroxide Inorganic chemistry General Engineering chemistry.chemical_element General Medicine respiratory system Tartrate complex mixtures Bayer process respiratory tract diseases chemistry.chemical_compound chemistry Aluminium Aluminium formate Sodium hydroxide |
| Zdroj: | Journal of Chemical Technology and Biotechnology. 31:745-750 |
| ISSN: | 0142-0356 |
| Popis: | The preparation of gelatinous aluminium hydroxide from aqueous solutions of the formate, citrate or tartrate of aluminium on addition of aqueous sodium hydroxide has been investigated under different conditions. The precipitates from aqueous solutions of aluminium formate consist of amorphous aluminium hydroxide, pseudoboehmite, bayerite, hydrargillite or their mixtures, depending on the condition of preparation. A mixed solution of aluminium citrate and sodium hydroxide yields no solid-phase product without aging on heating to enhance the hydrolysis of aluminium citrate. The resulting precipitate exists as pseudoboehmite, independent of the preparation conditions. In contrast, aluminium tartrate is not hydrolysed to precipitate aluminium hydroxide even by aging on heating. |
| Databáze: | OpenAIRE |
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