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sodium aluminate
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Sodium aluminate
Sodium aluminate is an important commercial inorganic chemical. It works as an effective source of aluminium hydroxide for many industrial and technical applications. Pure sodium aluminate (anhydrous) is a white crystalline solid having a formula variously given as NaAlO2, NaAl(OH)4 (hydrated), Na2O·Al2O3, or Na2Al2O4. Commercial sodium aluminate is available as a solution or a solid.
Other related compounds, sometimes called sodium aluminate, prepared by reaction of Na2O and Al2O3 are Na5AlO4 which contains discrete AlO45- anions, Na7Al3O8 and Na17Al5O16 which contain complex polymeric anions, and NaAl11O17, once mistakenly believed to be ß-alumina, a phase of aluminium oxide.
Other related compounds, sometimes called sodium aluminate, prepared by reaction of Na2O and Al2O3 are Na5AlO4 which contains discrete AlO45- anions, Na7Al3O8 and Na17Al5O16 which contain complex polymeric anions, and NaAl11O17, once mistakenly believed to be ß-alumina, a phase of aluminium oxide.
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Natriumaluminate
Natriumaluminate sind chemische Verbindungen, die bei Einwirkung von Natronlauge auf Aluminiumsalze entstehen, wobei die Natronlauge im Überschuss eingesetzt wird. Eine typische Reaktion ist das Auflösen (Beizen) von metallischem Aluminium sowie die synthetische Herstellung aus Aluminiumhydroxid durch Erhitzen mit Natronlauge:
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Aluminate de sodium
L'aluminate de sodium est un produit chimique inorganique de grande importance industrielle. Il constitue une source d'hydroxyde d'aluminium utilisée dans un grand nombre d'applications techniques. Sous forme anhydre, il s'agit d'un solide cristallin blanc, oxyde mixte de sodium et d'aluminium, de formule chimique NaAlO2, Na2O · Al2O3, ou Na2Al2O4.
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sodium aluminate
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