You can see the result in the video below. To grow pure metal crystals, he used copper wire and copper sulfate. He also used a special regulated power supply to create a low voltage to control the ...

Copper sulfate -- copper(II) sulfate or copper sulfate pentahydrate -- is a blue crystal that is used in tiny quantities to control the growth of green algae in large public pools and in municipal ...

Hydrated copper sulfate crystals should be blue and regularly ... It is important in this practical activity to use appropriate apparatus and methods. This includes the safe use and careful ...