Difference between revisions of "Transition metal monoxides"
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Unless otherwise noted crystal structure is '''simple cubic like table salt NaCl'''. <br> | Unless otherwise noted crystal structure is '''simple cubic like table salt NaCl'''. <br> | ||
Typical (with a few exceptions) is '''1900°C melting point and Mohs 5'''. | Typical (with a few exceptions) is '''1900°C melting point and Mohs 5'''. | ||
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| + | == Monometal monoxides == | ||
* ScO - no monoxide? (well its a rare earth anyway) | * ScO - no monoxide? (well its a rare earth anyway) | ||
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* NiO - [https://en.wikipedia.org/wiki/Nickel(II)_oxide Nickel(II)_oxide] - [https://en.wikipedia.org/wiki/Bunsenite Bunsenite] 6.898g/ccm - '''Mohs 5.5''' - 1,955°C - watersolubility negligible | * NiO - [https://en.wikipedia.org/wiki/Nickel(II)_oxide Nickel(II)_oxide] - [https://en.wikipedia.org/wiki/Bunsenite Bunsenite] 6.898g/ccm - '''Mohs 5.5''' - 1,955°C - watersolubility negligible | ||
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| − | * CuO - [https://en.wikipedia.org/wiki/Copper(II)_oxide Copper(II)_oxide] - [https://en.wikipedia.org/wiki/Tenorite tenorite] 6.5g/ccm - '''Mohs 3.5 to 4.0 | + | * CuO - [https://en.wikipedia.org/wiki/Copper(II)_oxide Copper(II)_oxide] - [https://en.wikipedia.org/wiki/Tenorite tenorite] 6.5g/ccm - '''Mohs 3.5 to 4.0''' - 1,326 °C - water insoluble - '''Monoclinic''' |
| − | * ZnO - [https://en.wikipedia.org/wiki/Zinc_oxide Zinc_oxide] - [https://en.wikipedia.org/wiki/Zincite] - 5.64–5.68g/ccm - '''Mohs 4 | + | * ZnO - [https://en.wikipedia.org/wiki/Zinc_oxide Zinc_oxide] - [https://en.wikipedia.org/wiki/Zincite] - 5.64–5.68g/ccm - '''Mohs 4''' - 1,974°C (decomposes) - watersolubility minute - '''Hexagonal''' |
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| + | == Dimetal monoxides == | ||
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* Cu<sub>2</sub>O - [https://en.wikipedia.org/wiki/Copper(I)_oxide Copper(I)_oxide] - [https://en.wikipedia.org/wiki/Cuprite Cuprite] - 6.14g/ccm - '''Mohs 3.5 to 4''' - 1,232°C - water insoluble - '''cubic (but...)''' | * Cu<sub>2</sub>O - [https://en.wikipedia.org/wiki/Copper(I)_oxide Copper(I)_oxide] - [https://en.wikipedia.org/wiki/Cuprite Cuprite] - 6.14g/ccm - '''Mohs 3.5 to 4''' - 1,232°C - water insoluble - '''cubic (but...)''' | ||
There is more metal than oxygen but the material is still transparent. Odd.<br> | There is more metal than oxygen but the material is still transparent. Odd.<br> | ||
Maybe because copper is pretty noble metal? | Maybe because copper is pretty noble metal? | ||
| − | + | = Related = | |
* [[Binary gem-like compound]] | * [[Binary gem-like compound]] | ||
| − | + | = External links = | |
* [https://en.wikipedia.org/wiki/Category:Transition_metal_oxides Wikipedia Category:Transition_metal_oxides] | * [https://en.wikipedia.org/wiki/Category:Transition_metal_oxides Wikipedia Category:Transition_metal_oxides] | ||
Revision as of 22:43, 12 April 2021
Unless otherwise noted crystal structure is simple cubic like table salt NaCl.
Typical (with a few exceptions) is 1900°C melting point and Mohs 5.
Monometal monoxides
- ScO - no monoxide? (well its a rare earth anyway)
- TiO - Titanium(II)_oxide - mineral: hongquiit - 4.96g/ccm - Mohs ?? - 1,750°C
- VO - Vanadium(II)_oxide - no mineral - 5.758g/ccm - Mohs ?? - 1,789 °C
- CrO - Chromium(II)_oxide - no mineral - only powders by thermodynamic means - 300°C (low!) - Mohs ??
- MnO - Manganese(II)_oxide - Manganosite - 5.364g/ccm - Mohs 5 to 6 - 1,945 °C - water insoluble
- FeO - Iron(II)_oxide - Wüstite - 5.7g/ccm - Mohs 5.0 to 5.5 - 1,377°C - water insoluble
- CoO - Cobalt(II)_oxide - no mineral? - 6.45g/ccm - Mohs ?? - 1,933°C - water insoluble
- NiO - Nickel(II)_oxide - Bunsenite 6.898g/ccm - Mohs 5.5 - 1,955°C - watersolubility negligible
- CuO - Copper(II)_oxide - tenorite 6.5g/ccm - Mohs 3.5 to 4.0 - 1,326 °C - water insoluble - Monoclinic
- ZnO - Zinc_oxide - [1] - 5.64–5.68g/ccm - Mohs 4 - 1,974°C (decomposes) - watersolubility minute - Hexagonal
Dimetal monoxides
- Cu2O - Copper(I)_oxide - Cuprite - 6.14g/ccm - Mohs 3.5 to 4 - 1,232°C - water insoluble - cubic (but...)
There is more metal than oxygen but the material is still transparent. Odd.
Maybe because copper is pretty noble metal?
