Precipitated Silica and Silica Gel

Keeping track with latest market development we, Hir Primak Enterprise, are actively engaged in importing, exporting and supplying Silica gel which is an amorphous form of silicon dioxide, which is synthetically produced in the form of hard irregular granules or beads. A micro porous structure of interlocking cavities gives a very high surface area (800 square meters per gram). It is this structure that makes silica gel a high capacity desiccant. Water molecules adhere to the gels surface because it exhibits a lower vapour pressure than the surrounding air. Silica gel physically adsorbs water vapour into its internal pores.

Standard white silica gel is referred to as being non-indicating. As it adsorbs moisture it remains physically unchanged. Non-indicating silica gel is both cheap and effective, available loose in bulk packs or packed in sachets. Indicating silica gels are colored gels whose colour changes as they absorb moisture.