Silica gel orange/green, 2-5 mm, with colour indicator, pearls, 500 g, plasticSilica gel orange green, 2 5 mm, with colour indicator, pearls, Density (D) 2,2 g cm Alternative product: environmentally friendly silica gel. Patented, organic humidity indicator heavy metal free Reversible colour change Note: We recommend activating silica gels before using it for the first time Properties: Regeneration at max. 110 C, approximately 3 4 hours Adsorptive capacity: at 60 % rel. humidity approx. 35 wt% Colour change from orange to green