When KCl is put into solution (aka added to purified water) and a slight current is added what precipitates form at the

Question: When KCl is put into solution (aka added to purified water) and a slight current is added what precipitates form at the cathode and anode? It can not be straight K because it would explode in water. It is a very bright blue color.
- Keywords:
  anode,
  cathode,
  explode,
  form,
  kcl,
  solution,
  water
Asked by calvis to Mike, Pip, Tianfu, Tim, Tom on 29 Jun 2012.
- Tom Lister answered on 29 Jun 2012:
  
  I’m not sure about this. Does K explode in purified water, or is it the impurities that usually cause the problem?
  
  Pip?
- Tim Stephens answered on 29 Jun 2012:
  
  Chemist to the question room please?

Question: When KCl is put into solution (aka added to purified water) and a slight current is added what precipitates form at the cathode and anode? It can not be straight K because it would explode in water. It is a very bright blue color.