Silica Gel

For silica gel, the reaction mixture is held in the acidic pH region, and here precipitated silica means a three-dimensional network of particles with low diameter (3 n.m.), with a high specific surface area (>350 m2/g). Packets of silica gel are found in all sorts of products because silica gel adsorbs and holds water vapor. In fact, you will find little silica gel packets in anything that would be affected by excess moisture or condensation. Silica gel is nearly harmless and that is why you find it in food products. Silica gel can adsorb about 40% of its weight in moisture and can take the relative humidity in a closed container down to about 40%. Once saturated you can drive the moisture off and reuse silica gel by heating it above 300 degrees F.

Visit our product selector ...

The use of silica :
Tire & Rubber Goods (Manufactured Rubber Goods & Tire)
Polymer Performance (Organic Rubber For Footwear, Plastics and TPE, Polymer for Membranes
Silicone Elastomers), Nutritions & Industrial (Specialties, Nutritions, Industrial Specialties), Performance Silicas (Dentifrice)

Know more ...

Contact your silica specialist

On Rhodia-silica.com, find content about :
Use of Silica, silica products, silica range, silica for industry, amourphous silica, green tire, HDS, performance silica, precipitated silica, silica characteristics (Ph, technology, density), silica expertise, silica functions, silica gel, silicone dioxide, silica utilization.