Homebrew PCBs

pcb.easy wrote:

One last question about the storage of dry copper
> hydroxide powder. Does it react to anything, such as moisture, light,
> plastics, metals?
> 


Its a hydroxide so it will react with acid to form a salt again. (e.g 
add vinegar to get copper acetate). I can't think of any plastic that 
wouldn't hold the sludge or power. Aluminum might not be a good idea, 
and steel will rust. Use any available plastic household container.