Salt Water Electrolytic Etching

Using Salt Water as an electrolytic solution for etching copper. See Warning Below: https://greenart.info/pdf/index.htm Green Prints Pg. 19 Do not be tempted to use Salt solution ( or brine) as an electrolyte as has been suggested on various websites, as the results of the elctrolytic action with brine are to generate chlorine gas, hydrogen gas, to turn the electrolyte into caustic soda or sodium chlorate, and with different metals as the plate or cathode, to be left with a toxic brew of different chemicals (see links for further information)