WHEN copper sulphate pentahydrate is dehydrated in a vacuum at room temperature, the resulting product, of composition copper sulphate monohydrate, possesses no evident crystal structure as shown by X ...

Copper sulfate (This is available via pet or aquarium stores and is used to combat algae or it is sold by home improvement stores as a root killer. Make sure the product is pure copper sulfate and ...

Full Question: I have removed six Silver Maple trees (12″ – 16″ diameter) from my yard because of root intrusion and roots surfacing. Can I treat the stumps by drilling and applying copper sulfate and ...