Ok problem solved.
I have dissolved eveything in the solution that I still have. 600ml of this solution took 43 grams of silver before it was exhausted. I have must added some "3rd nitric leech" there - that is why there was soo much unused acid.
After solution has cooled down I have put the same copper pieces and silver participated without any problems this time
Thanks for help
I have dissolved eveything in the solution that I still have. 600ml of this solution took 43 grams of silver before it was exhausted. I have must added some "3rd nitric leech" there - that is why there was soo much unused acid.
After solution has cooled down I have put the same copper pieces and silver participated without any problems this time
Thanks for help
