Product Overview

Silica Gel Self-Indicating (Coarse-Blue) (CAS No. 112926-00-8) is a porous amorphous silica-based desiccant supplied in coarse particles and incorporating a moisture-responsive colour indicator. The silanol-rich internal surface adsorbs water physically from the surrounding atmosphere, while the indicator provides a visible change associated with progressive moisture loading. The blue designation is treated strictly as the submitted indicator colour and does not establish the chemical identity or concentration of the indicator component.

This self-indicating product form is intended for visual monitoring of desiccant condition in laboratory storage, drying and moisture-control systems. The coarse particle form supports packed-bed and container applications where larger granules are convenient and lower dust generation is desirable. No pore size, surface area, adsorption capacity, indicator chemistry or regeneration condition is inferred from the catalogue name.

Typical Applications

• Moisture control in laboratory storage containers and desiccation systems.
• Visual monitoring of silica-gel moisture loading through indicator response.
• Protection of moisture-sensitive laboratory materials during storage.
• Packed desiccant beds and drying cartridges compatible with coarse granules.
• Drying of enclosed laboratory spaces, cabinets and equipment housings.
• General humidity-control studies requiring a self-indicating desiccant.

Common Synonyms

• Self-indicating silica gel
• Indicating silica gel
• Blue indicating silica gel
• Amorphous silica gel
• Silica gel

Storage Conditions

Keep unused material tightly sealed and protected from ambient humidity so that adsorption capacity and the initial indicator state are preserved. Prevent contamination by liquids, dust, volatile residues or other materials that could occupy the silica surface or interfere with colour response.