[dezman]

In work i do an experiment to work out the CaCl2 conc of paper and we use silver nitrate. I was wondering if there is a simple and safe method of reclaiming the silver. We only use 0.1 mol AgNO3 but we use quite a lot.

[Borek]

Assuming you are left with AgCl precipitate you may think about methods used for reclaiming silver from used fixing solutions - although these contain silver complexed by thiosulfate, general ideas may be similar. You may start adding thiosulfate to dissolve precipitate.

http://www.p2pays.org/ref/01/00048.htm - googled in 15 seconds (reclaiming silver from fixing solution).