Recent content by Roger Paine

  1. Roger Paine

    Zn + HCl and steel or iron plating

    My zinc came from an etching plate which is marketed as being 99.95% pure zinc. The acid is 35% that I brought from the hardware shop... come to think of it, I did initially put a zinc carbon battery case in there to start with... washed all the electrolyte off and wire brushed it... maybe that...
  2. Roger Paine

    Zn + HCl and steel or iron plating

    I dissolved zinc in HCl until it stopped fizzing - all the Zn is gone so there may be some HCl left. I have a purple/violet liquid that I assume is zinc chloride. When I brush newly cut mild steel or iron with the solution, I get copper/brass coloured plating that does not rub off. I have no...
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