Silica gel with colour indicator from orange to dark brown and black (does not contain cobalt-II-chloride). Grain size 2,0 – 5,0 mm, loss after drying <=4%.

Test procedure A relative humidity of approx. 100 % is simulated in a desiccator. In the bottom of the desiccator there is a tray with 500 g of Silicagel. The door is closed and is airtight. The curves show relative humidity versus time.

How it works The humidity in your desiccator can be reduced most rapidly if you spread it on a big surface. The provided desiccant tray is best suitable for it. Please make sure that the desiccant surface is not higher than one centimeter. If you have to increase the desiccant quantity for your experiment, please take another tray. Up to 16 g humidity can be absorbed by the desiccant within 24 hours.