Silica gel is an amorphous and porous form of silicon dioxide (silica), including an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores. The voids can also contain water or a few other beverages, or may be crammed by way of gas or vacuum. Inside the closing case, the material is properly referred to as silica xerogel. Silica xerogel with an average pore size silica gel online of two. Four nanometers has a robust affinity for water molecules and is broadly used as a desiccant. It is hard and translucent, but drastically softer than big silica glass or quartz; and remains hard while saturated with water. Fused quartz, fused silica or quartz glass is a glass consisting of virtually pure silica (silicon dioxide, sio2) in amorphous (non-crystalline) form.

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