Im looking for some 10M HCl, to mix my own Copper Chloride in Aqueous Hydrochloric Acid Solution for etching.
Not been able yo find any in the locale hardware store (in the usual pool, stone cleaning products) anyone know where i can get so on-line that dose small quantity like 500ml/1L?
think this is the stuff......and its dirt cheap!
http://www.everbuild.co.uk/images/pdf/coshh/401%20brick%20and%20patio%20cleaner.pdf
Have you tried Maplin
would like to keep cleare of ferrichloride, as it can only be used a few times (unlike Copper Chloride in Aqueous Hydrochloric Acid Solution, that can be revived by just adding hydrogen peroxide) so £10 for a life time suplly of more enviromental etching Vs evil ferrichloride.
Don't know molarity, but I found "muriatic" acid (which is HCl) at a swimming pool supply store. It was ~33% concentration, which means it came out just right to mix 10oz of it with one quart of drug-store H2O2. It does a great job of etching.
It is way easier to use than FeCl, besides being easier to deal with disposal.
I tried the method you described (once), but it just isn't worth the effort. For about US$1 I can mix 42oz of solution, etch for a few hours, then dump the stuff. I'm still working on my first gallon of HCl (less than US$10).
It's just not worth the extra hassle of even storing the etchant to do the regenerated stuff.
-j
Don't know molarity, but ... It was ~33% concentration,
Hydrochloric acid maxes out at about 37%. Swimming pool acid is about as strong as you can get, and should work fine...
one quart of drug-store H2O2
You might have trouble getting that in the UK what with all the heighten alerts about terrorists.
You might have trouble getting that in the UK what with all the heighten alerts about terrorists.
Really??? That's incredibly insane. The stuff's about 2% strength; it would take massive quantities to do anything serious with it.
-j