Yellow Silica Gel

sSORB yellow indicating silica gel is a synthetically modified silicon dioxide that has been purified and processed into a hard, smooth bead. The beads are then saturated with a moisture indicating solution that gives them a yellow (orange) color when dry. It is also known as a narrow pore silica gel and has a vast network of interconnecting pores with diameters of 20-30Å. These pores have a strong affinity for moisture and use physical adsorption and capillary condensation to trap and hold it. Silica gel will remove moisture at temperatures as high as 220˚F, but is best used at room temperature (70-90 ˚F) and high relative humidity (60-90%Rh).