SILICA GEL SELF INDICATING 5-8 MESH BLUE COARSE
Self indicating silica gel is a desiccant
that protects sensitive equipment from high humidity and condensation.
This silica gel is a bead or granule that has been washed with a concentration of cobalt chloride (a heavy metal salt). The cobalt chloride is a deep-blue color when dry and turns from blue to pink as it becoAmes saturated
Blue silica gel has cobalt chloride, which allows the blue silica gel change its color to pink when it reached its maximized adsorption capacity. Once pink it can be reactivated with heat to dry out the moisture
Blue indicating silica gel contains cobalt chloride and has been banned by the EU. On the other hand, orange silica gel is non-toxic and is widely used in the EU. It works best at room temperature and has a variety of applications where visual control of moisture is necessary.