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Silica Gel Blue
Original price was: $ 5.80.$ 5.74Current price is: $ 5.74.
Silica Gel Blue is a granular, porous form of amorphous silica that contains a moisture-sensitive cobalt compound. The blue color changes to pink as the silica absorbs moisture, providing a visual indication of saturation. Packaged in 25kg quantities, this self-indicating desiccant is widely used in industrial, commercial, and consumer applications for moisture control, preservation, and protection of sensitive materials. Its high surface area, non-corrosive nature, and easy regeneration make it a preferred drying agent across various industries.
Silica Gel Blue
Primary Uses
- Packaging & Storage Protection
- Used to control humidity in the packaging of electronics, optics, instruments, and pharmaceuticals.
- Included in shipping containers and product packaging to prevent moisture damage during transit and storage.
- Protects documents, photos, and archival materials from mold and degradation.
- Industrial Drying & Dehumidification
- Used in compressed air and gas drying systems to remove water vapor.
- Applied in sealed containers and cabinets where moisture control is critical (e.g., toolboxes, electrical enclosures).
- Common in transformer breathers to prevent moisture ingress into insulating oil.
- Pharmaceuticals & Healthcare
- Protects capsules, tablets, and powders from humidity during storage and shipping.
- Used in pharmaceutical cleanrooms and laboratory desiccators for moisture-sensitive substances.
- Laboratories & Scientific Applications
- Maintains dry conditions in desiccators and drying chambers.
- Helps preserve reagents, chemicals, and lab instruments from humidity-related degradation.
- Electronics & Optics
- Maintains moisture-free environments for sensitive devices such as sensors, semiconductors, and lenses.
- Used in storage of optical instruments, cameras, and night-vision equipment.
Secondary Uses
- Food Industry
- Used as a desiccant in non-edible product packaging (e.g., spice sachets, jerky packets) to prolong shelf life.
- Employed in food machinery parts or packaging machines to prevent condensation. (Note: Not food-grade)
- Military & Aerospace
- Ensures moisture protection of weapons systems, avionics, and mission-critical gear during long-term storage.
- Museums & Archival Storage
- Controls humidity in display cases and storage vaults to preserve textiles, artworks, and rare books.
- Consumer Use
- Used in closets, shoe boxes, gun safes, and camera bags to keep personal items dry.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Silicon dioxide (SiO₂), amorphous, with cobalt(II) chloride indicator
- Common/Trade Name: Silica Gel Blue Self-Indicating
- CAS Number: 7631-86-9 (silica), 7646-79-9 (cobalt(II) chloride)
- HS Code: 2811.22.00 (Silica gel)
- Synonyms: Blue Silica Gel, Indicating Desiccant, Self-Indicating Silica
2. Physical & Chemical Properties
- Physical State: Solid (granules or beads)
- Color & Odor: Blue when dry, turns pink when saturated; odorless
- Particle Size: Typically 1–5 mm diameter
- Surface Area: 600–800 m²/g
- Moisture Capacity: Up to 40% of its own weight
- Solubility: Insoluble in water and most solvents
- Regeneration Temperature: 120°C–150°C (for moisture release and reuse)
3. Safety & Hazard Attributes
- GHS Classification: Harmful due to cobalt content; potential carcinogen (when inhaled in dust form)
- Toxicity: Moderate (avoid ingestion or prolonged skin contact)
- Exposure Limits: Minimize exposure to cobalt compounds; follow workplace safety guidelines
4. Storage & Handling Attributes
- Storage Conditions: Store in tightly sealed, moisture-proof containers in a dry, cool environment
- Container Type: 25kg drum, bag, or pail (moisture-resistant packaging)
- Shelf Life: Indefinite if kept dry and sealed; color change indicates saturation
- Handling Precautions: Avoid creating dust; wear protective gloves and eyewear
5. Regulatory & Compliance Attributes
- Complies with industrial desiccant regulations and quality standards (e.g., MIL-D-3464E)
- Not approved for food or pharmaceutical direct contact (unless cobalt-free variants are used)
- Subject to hazardous material labeling in some regions due to cobalt chloride content
- REACH-compliant (restricted substance notifications may apply)
6. Environmental & Health Impact
- Biodegradability: Non-biodegradable
- Ecotoxicity: Cobalt chloride is toxic to aquatic life; handle spent material properly
- Bioaccumulation: Not likely for silica, but cobalt may pose risk if improperly disposed
- Disposal Considerations: Dispose as hazardous waste if saturated or contaminated
Safety Handling Precautions
- PPE Required: Gloves, dust mask or respirator, goggles
- Handling Guidelines: Avoid inhalation of dust; wash hands after handling
- Storage Measures: Keep containers tightly closed and stored in a dry environment
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if respiratory symptoms develop
- Skin Contact: Wash with soap and water; get medical advice if irritation develops
- Eye Contact: Flush with water for at least 15 minutes; seek medical attention
- Ingestion: Rinse mouth thoroughly; do not induce vomiting; consult a healthcare provider
Firefighting Measures
- Fire Hazards: Non-flammable; inert material
- Extinguishing Media: Use appropriate media for surrounding materials
- Special Precautions: Wear protective gear in case of contaminated surroundings
- Hazardous Combustion Products: None (inert under fire conditions)
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Silica Gel White is a non-indicating, amorphous form of silicon dioxide (SiO₂) used primarily as a desiccant to control humidity and prevent moisture damage in a wide range of applications. Unlike blue silica gel, it does not change color when saturated, making it ideal for use where visual indicators are not required. It is chemically inert, odorless, and capable of adsorbing up to 40% of its weight in water vapor. Packaged in 25kg bags or drums, Silica Gel White is used across industries for packaging, preservation, drying, and moisture regulation.
