I am a non-chemist looking for some advice! I am an archaeologist and am currently using moisture-indicating silica gel (orange) to dry out some metal finds from our excavations. I have reheated silica gel before but I am looking for a refresher as it is many years I've done it!
I intend to heat a small amount at a high temperature (can anyone advise what temperature?) in an oven that is used solely for this purpose. How long do I need to heat it for? If I heat it for longer, is it likely to retain its colour for longer?
Additionally, how well ventilated does the space I am in need to be? I intend to wear gloves and a light-weight mask.
