Copper Sulfate on steel FREAKED ME OUT!!!!

Purchase copper sulfate from my Amazon affiliate link: https://amzn.to/3cGDTtW I often make metal sliding doors and I typically use vinegar to rust the metal. Well I wanted to find something that could be used to give steel the look of copper. During my search I discovered copper sulfate. Found in products that kill roots, copper sulfate can also be used to copper plate steel. I didn't want to copper plate though, I wanted to use it as a kind of patina on the steel. What I discovered totally freaked me out! I loved how quickly it reacted when applied to the steel.