Copper Sulfate Pcb Etching

After you ve dissolved a lot of copper into the solution and used up all the peroxide the copper chloride does most of the etching for you.

Copper sulfate pcb etching.

I used a concentration of 4 parts water to 1 part copper sulfate assuming 1 kilo being one litre. Older names for this compound include blue vitriol bluestone vitriol of copper and roman vitriol. Eventually you etch so much that you convert all the cucl2 into cucl which doesn t dissolve copper and is a yucky brown color. Cucl2 cu 2 cucl.

That s the end etchant. Copper ii sulfate also known as copper sulphate are the inorganic compounds with the chemical formula cu so 4 h 2 o x where x can range from 0 to 5 the pentahydrate x 5 is the most common form. The copper sulfate saline etch is a salt based etching mordant designed for silvery metals such as aluminum zinc and mild steel as a replacement to fredhard kiekeban s ferric chloride based edinborough etch used for etching materials such as copper and brass. Copper sulfate is defined as an irritant but can be bought online.

The pentahydrate cuso 4 5h 2 o the most commonly encountered salt is bright blue. A quick guide on how i go about mixing and etching with copper sulphate. Based on the copper sulphate mordant originally designed by nik semenoff and. It easily dissolves in water to a nice blue liquid.

Artist diane roberts shows how to prepare and etch a zinc etching plate using copper sulphate and salt safe etch.