Type A Silica Gel—An Efficient Adsorbent Safeguarding Precision Instruments and Product Integrity

Type A silica gel, also known as fine-pore silica gel, appears as transparent or translucent granules. It is available in two forms: spherical and blocky. Its main constituent is SiO2•nH2O; it is insoluble in water and inorganic acids, but soluble in hydrofluoric acid and concentrated caustic soda solutions. It exhibits high mechanical strength and excellent abrasion resistance. Its internal structure features a pore volume of 0.35–0.5 mL/g, a pore diameter of 20–40 Å, and a specific surface area of ≥600 m²/g.

Characteristics and Safety Performance of silica gel Gel

Silica gel is a highly active adsorbent material, typically produced by reacting sodium silicate with sulfuric acid and subjecting it to a series of post‑treatment steps, including aging and acid leaching. As an amorphous substance, silica gel has the chemical formula SiO2·nH2O. It is insoluble in water and all solvents, non‑toxic and odorless, and chemically stable; it does not react with any substances except strong alkalis and hydrofluoric acid.

Regeneration of silica gel

During use, silica gel adsorbs water vapor or other organic substances from the surrounding medium, leading to a decline in its adsorption capacity; it can be regenerated and reused.

New pet waste cleaner and eco-friendly household products

Cat litter is primarily composed of silica gel (non-toxic and non-polluting), making it an ideal, next-generation pet waste cleaner and an eco-friendly household product. Silica gel cat litter appears as white granules, is lightweight and resistant to breakage, and effectively inhibits bacterial growth.

Introduction to Industrial Desiccants

The main raw materials for industrial desiccants include: fine-pore silica gel, Type B silica gel, color-changing silica gel, activated mineral beads, montmorillonite, molecular sieves, and others. Users can select the appropriate type based on the characteristics of the packaged product.