I've decided to make dancing flames. It's done by burning a mixture of aluminum, copper sulfate and hydrochloric acid.

Sodium hydroxide is added to a cylinder of aluminum nitrate, precipitating out aluminum hydroxide. When additional base is added, the precipitate dissolves. The reactions can then be reversed with the ...

68% of aluminum, 80% of calcium, and 59% of titanium, as well as some rare earth elements—42% of yttrium was also solubilized. "Acid dissolution of mine waste is a promising way to make use of ...