Fine-pore silica gel 4-8mm is an inorganic silica gel material, appearing as white or grayish-white granular particles, with an average pore size of 2.0-3.0 nm and a specific surface area of 650-800 m2/g. It features a highly microporous structure and chemical stability (non-reactive except with strong alkalis and hydrofluoric acid). Its core characteristics include:

• Adsorption Performance: Moisture absorption rate ≥70% in low humidity environments, suitable for moisture protection in precision equipment and gas drying;
• Physical Parameters: High compressive strength, water resistance without cracking rate ≥95%, moisture content ≤5%;
• Application Scenarios: Mainly used for drying in air separation equipment, compressed air dehumidification, instrument moisture protection, and catalyst carriers;
• Precautions: Storage requires sealing to prevent moisture and avoid contact with strong alkalis.