On 05/03/19 22:26, MVS Sarma wrote:
Ferric chloride disposal is a a cumber some affair.
?Most Indian PCB makers appear to be using HCL and h2o2.
Ammonium per oxide, i bought a bottle, but never used.
Till now only Ferric chloride . Working OK? for me for my hobby use.
There is no need to *ever* dispose of Ferric chloride.
Start with it diluted 1:1 with water, and just add some HCl every time you use it. Keep the Ferric chloride covered when not in use.
Use air bubble agitation, because the dissolved oxygen regenerates it.
