how can silver be produced from the water of photograph means from the water which is used for cleaning photos

Question

i mean the water which is used for making photos from an camera reel .......how can silver be produced from that water ???? i knw it can be produced but how ?i dont knw............. some chemicals are added...... but i dont knw which chemicals .........plz tell me chemicals and whole process and............. plz only serious answers

Answer 1

It has been awhile since chem class, but I think that if the solution is silver nitrate, you can drop in some copper (such as copper wire). The copper is more reactive than the silver and will displace it in the solution. The solution will turn blue because of the copper nitrate. The silver will form on the wire. It looks sort of fuzzy.

Here is a video of the reaction:

http://cwx.prenhall.com/petrucci/medialib/media_portfolio/text_images/024_SILVERCRYSTA.MOV

Answer 2

The light sensitive material on film is a silver compound, either AgBr or AgCl. When film is developed some of the silver is washed off and can be recovered from the rinse water. The chemicals used are called developer , stop bath and fixer. The fixer is often called hypo.

Answer 3

The solution is silver nitrate...that's for photo development...although, I think color photos may be different...I'm not sure. I don't know the whole chemistry involved in developing...but silver nitrate is definately in there somewhere.