Gerhardtite
A variety of Minerals
What is Gerhardtite?
Copper(II) nitrate, Cu(NO3)2, is an inorganic compound that forms a blue crystalline solid. Anhydrous copper nitrate forms deep blue-green crystals and sublimes in a vacuum at 150-200 °C. Copper nitrate also occurs as five different hydrates, the most common ones being the hemipentahydrate and trihydrate.
Uses & Applications
Copper(II) nitrate finds a variety of applications, the main one being its conversion to copper(II) oxide, which is used as catalyst for a variety of processes in organic chemistry. Its solutions are used in textiles and polishing agents for other metals. Copper nitrates are found in some pyrotechnics. It is often used in school laboratories to demonstrate chemical voltaic cell reactions. It is a component in some ceramic glazes and metal patinas.
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Gerhardtite Localities Map
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Quick Facts
Physical Properties
- Color
- Emerald Green
- Hardness (Mohs)
- 2
- Density
- 3.389 g/cm³
- Streak
- Light green
Chemical Properties
- Chemical Formula
- Cu2(NO3)(OH)3
- Elements
- Cu, H, N, O
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