How to make copper sulfate

This is an easy way to produce copper sulfate either at home, at school or in a laboratory.

Please note: As you will be working with hot water it is important that children are supervised at all times.

Ingredients needed to make your own copper sulfate crystals:

  • Copper carbonate or black copper oxide
  • Sulfuric acid
  • a clean beaker
  • A conical flask
  • A glass rod
  • A tripod
  • an evaporating dish
  • Gauze
  • Filter paper
  • A funnel
  • goggles
  • Gloves

Instructions on how to make copper sulfate:

  • Using gloves and goggles add sulfuric acid to copper carbonate or copper oxide until no more dissolves.
  • You will know when you have added enough as no more gas will be produced.
  • Filter the solution through the filter paper in a funnel onto an evaporating dish.
  • Heat the solution gently over a bunsen burner until most of the solution has evaporated and allow to cool.
  • crystals of copper sulfate will start to form on the dish.


Always wear appropriate personal protection equipment when handling sulfuric acid as it is very corrosive.

Where to buy quality Copper Sulfate

Where to buy copper carbonate

Where to buy copper oxide black