Difference between revisions of "Aluminium oxide"
From Sciencemadness Wiki
m (→Preparation) |
m |
||
| Line 1: | Line 1: | ||
| + | {{Stub}} | ||
{{Chembox | {{Chembox | ||
| Name =Aluminium oxide | | Name =Aluminium oxide | ||
| Line 53: | Line 54: | ||
| AtmosphericOHRateConstant = | | AtmosphericOHRateConstant = | ||
| Appearance =white solid | | Appearance =white solid | ||
| − | | BoilingPt = | + | | BoilingPt ={{convert|2977|°C|°F K|abbr=on}} |
| BoilingPtC = | | BoilingPtC = | ||
| BoilingPt_ref = | | BoilingPt_ref = | ||
| BoilingPt_notes = | | BoilingPt_notes = | ||
| − | | Density = | + | | Density = 3.95–4.1 g/cm<sup>3</sup> |
| Formula =Al<sub>2</sub>O<sub>3</sub> | | Formula =Al<sub>2</sub>O<sub>3</sub> | ||
| HenryConstant = | | HenryConstant = | ||
| LogP = | | LogP = | ||
| MolarMass = | | MolarMass = | ||
| − | | MeltingPt = | + | | MeltingPt ={{convert|2072|°C|°F K|abbr=on}} |
| MeltingPtC = | | MeltingPtC = | ||
| MeltingPt_ref = | | MeltingPt_ref = | ||
| Line 68: | Line 69: | ||
| pKa = | | pKa = | ||
| pKb = | | pKb = | ||
| − | | Solubility = | + | | Solubility = insoluble |
| SolubleOther = | | SolubleOther = | ||
| Solvent = | | Solvent = | ||
| Line 75: | Line 76: | ||
| Section3 = {{Chembox Structure | | Section3 = {{Chembox Structure | ||
| Coordination = | | Coordination = | ||
| − | | CrystalStruct = | + | | CrystalStruct =trigonal |
| MolShape = | | MolShape = | ||
}} | }} | ||
Revision as of 18:25, 23 February 2016
 |
This article is a stub. Please help Sciencemadness Wiki by expanding it, adding pictures, and improving existing text.
|
| Names | |
|---|---|
| IUPAC name
dialuminum;oxygen(2-)
| |
| Systematic IUPAC name
Aluminium oxide | |
| Properties | |
| Al2O3 | |
| Appearance | white solid |
| Density | 3.95–4.1 g/cm3 |
| Melting point | 2,072 °C (3,762 °F; 2,345 K) |
| Boiling point | 2,977 °C (5,391 °F; 3,250 K) |
| insoluble | |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Aluminium oxide is chemical compound of aluminum and oxygen with chemical formula Al2O3, its most common of several aluminium oxides. Aluminium oxide occurs naturally in it's crystalline alpha phase as mineral corundum.
Contents
Properties
Chemical
Physical
Aluminium oxide is very hard solid (9 Mohs scale). It's electrical insulator.
Availability
Aluminium oxide is often present in sandpapers, you can also buy it from mineral collectors as corrundum or gemstones like ruby or saphire.
Preparation
Aluminium oxide is a product of thermite reaction: M2O3 + 2Al → Al2O3 + 2M
