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Silica Gel Blue

Original price was: $ 5.80.Current price is: $ 5.74.

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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.

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Categories: Finishing Agents, Industrial Additives Tags: Humidity Control Agent, Moisture Absorber, Self-Indicating Desiccant, Silica Gel Blue

Description

Table of Contents

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.

KEY PRODUCT FEATURES

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

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