Copper-sulphate.
Copper sulphate.
Copper-sulphate.
Copper sulphate.
Copper sulphate.
Copper sulfate.
Copper sulphate.
Copper sulfate..
Copper Sulphate.
Copper sulphate.
Copper Sulphate.
Copper sulfate.
Copper Sulphate.
Copper Sulphate.
Copper Sulphate.
Copper sulfate.
Copper Sulphate..
Copper Sulfate.
Copper Sulphate..
Copper sulphate.