i tried for the first time to use ammonium persulphate instead of
ferric chloride. i built a nice etcing tank with a heater at about
50 degree celcius and an air pump. i used about 1kg of ammonium
persulphate with 2 litre of water (at the first place i used much
less ammonium persulphate, but when i saw nothing is happening i put
more).
help!!!!!!!!!!!!! i need it very urgent!
thanks a lot,
mumin.
ferric chloride. i built a nice etcing tank with a heater at about
50 degree celcius and an air pump. i used about 1kg of ammonium
persulphate with 2 litre of water (at the first place i used much
less ammonium persulphate, but when i saw nothing is happening i put
more).
help!!!!!!!!!!!!! i need it very urgent!
thanks a lot,
mumin.