Tuesday 15 April 2014

There is another type of silica gel called the Self-indicating silica gel. It has a moisture sensitive additive impregnated to the plain silica gel. The indicator changes color as moisture is adsorbed thus giving a visual indication of activity level of the silica gel. There are many self-indicating silica gels available in the market, among which the orange self indicating silica gel is the common.
Orange to Dark Green Silica Gel Using an organic indicator this silica gel offers a very strong orange to dark green colour change. Orange to Colorless Iron salts is used as additive in this high capacity desiccant, changing from a deep orange to a very pale yellow colour. The indicator is very robust, making this silica gel well suited to repeated regeneration and reuse. Self-indicating orange silica gels are non-toxic just like other silica gels. Silica gel is in different industry for Breathers Transformers, Solvent Drying, Industrial Gases and Air drying Industries.

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