سیلیکاژل با نشانگر رطوبت (آبی)

Silica Gel with Moisture Indicator (Blue) is a self-indicating desiccant composed of silica gel impregnated with cobalt chloride. It is widely used in pharmaceutical and laboratory applications to control moisture and prevent degradation of sensitive products.

🏭⚗️ Production
Silica gel is synthesized through the polymerization of sodium silicate, followed by acidification and washing to remove impurities. For the blue indicating variety, cobalt chloride is incorporated into the silica matrix during the manufacturing process. The resulting beads or crystals exhibit a deep blue color when dry, transitioning to pink as they absorb moisture, providing a visual indication of their saturation level.

🔬 Properties
The blue indicating silica gel is a granular or bead form of silica with a high surface area, allowing for efficient moisture adsorption. It can absorb up to 40% of its weight in water vapor. The color change from blue to pink serves as a clear indicator of the gel’s moisture content. However, it is important to note that cobalt chloride, the moisture indicator, is a toxic substance and should be handled with care.

🧪 Applications
In pharmaceutical settings, blue indicating silica gel is used in the packaging of moisture-sensitive drugs, ensuring their stability and efficacy. It is also employed in the storage of medical devices and diagnostic kits to prevent moisture-related damage. In laboratory environments, it serves as a desiccant in desiccators and other moisture-sensitive equipment. Additionally, it is utilized in the preservation of biological samples and reagents that require low humidity conditions.

⚠️ Safety
Due to the presence of cobalt chloride, blue indicating silica gel is classified as a hazardous material. Direct contact with skin and eyes should be avoided, and ingestion or inhalation can lead to serious health issues. Appropriate personal protective equipment, including gloves and safety goggles, should be worn when handling this substance. In case of exposure, seek immediate medical attention. The gel should be stored in airtight containers in a cool, dry place, away from incompatible materials.