I usually throw a pack of self-packed silica gel into my camera bag and found that it recently changed colour after 5 days.
So i went online to look for more info and read some articles about silica gel.
Its stated that self-indicating (normally those in blue) silica gels contains a chemical called cobalt chloride which is carcinogenic. Meaning its causes cancer if the dust particles of it are inhaled over long period of time. However this does not to those non-indicating gels which are transparent.
Anyone got views to share on this topic?
I read this piece of info at