aluminate
Dictionary:
a·lu·mi·nate (ə-lū'mə-nāt', -nĭt) 
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n.
A chemical compound containing aluminum as part of a negative ion.
| 5min Related Video: aluminate |
| Chemistry Dictionary: aluminate |
A salt formed when aluminium hydroxide or γ-alumina is dissolved in solutions of strong bases, such as sodium hydroxide. Aluminates exist in solutions containing the aluminate ion, commonly written [Al(OH)4]−. In fact the ion probably is a complex hydrated ion and can be regarded as formed from a hydrated Al3+ ion by removal of four hydrogen ions:
[Al(H2O)6]3++4OH− → 4H2O+[Al(OH)4(H2O)2]−
Other aluminates and polyaluminates, such as [Al(OH)6]3− and [(HO)3AlOAl(OH)3]2−, are also present. See also aluminium hydroxide.
| WordNet: aluminate |
Note: click on a word meaning below to see its connections and related words.
The noun has one meaning:
Meaning #1:
a compound of alumina and a metallic oxide
| Wikipedia: Aluminate |
An aluminate is a compound containing aluminium and oxygen. When precipitated from solution, the anion condenses with more electropositive elements. The generally accepted form of the aluminate is a mononuclear tetrahedral complex that is negatively charged, Al(OH)4− or AlO2−. Examples of aluminate compounds include sodium aluminate (Na2Al2O4) and potassium aluminate (K2Al2O4), both being alkali-ion precipitates of the tetrahedral monomer obtained from an alkaline solution. Aluminate can also refer to the polyatomic ion AlO3−3.
Minerals like chrysoberyl are sometimes called aluminates, although they are usually classified as mixed oxides. As minerals, aluminates are much less common than aluminosilicates.
See Category:Aluminates for a list of aluminates.
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Chemistry Dictionary. A Dictionary of Chemistry. Sixth Edition. Copyright © Market House Books Ltd, 2008. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Aluminate". Read more |
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Mentioned in
- aluminosilicate (inorganic chemistry)
- –ate
- irdome (optics)
- Bayer process (process – in metallurgy)
- expansive cement, sulfoaluminate cement
- chrysoberyl (gem)
- sodium aluminate
- sodium hexafluoraluminate
- amphoterism (in chemistry)
- cement (material, structure)
