Silica Gel White 25kg

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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.

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Categories: ENVIRONMENTAL AND GREEN CHEMICALS, LABORATORY CHEMICALS, SPECIALTY AND FINE CHEMICALS, Wastewater Treatment Chemicals Tags: Desiccant, Moisture Absorber, Non-Indicating Granules, Non-Indicating Silica Gel, Silica Gel White, White

Description

Uses

Primary Uses

Packaging & Storage Protection

Used in sealed packaging to protect moisture-sensitive products like electronics, optical equipment, and pharmaceuticals.
Included in bulk packaging of raw materials, powders, and grains to prevent clumping and spoilage.
Ensures dryness during long-distance shipping and storage in containers, pallets, or boxes.

Industrial Drying & Dehumidification

Applied in compressed air and gas drying systems to remove humidity from industrial gases.
Used in instrument cabinets, electrical control panels, and switchgear enclosures to prevent corrosion.
Utilized in transformer breathers to keep insulating oil dry and functional.

Pharmaceuticals & Healthcare

Maintains dryness in containers holding tablets, capsules, and powders.
Prevents microbial growth and product degradation in humidity-sensitive medications.
Used in blister packaging for diagnostic kits and devices.

Scientific & Laboratory Applications

Maintains a dry environment in desiccators, reagent containers, and laboratory storage.
Used during specimen storage and drying procedures.

Electronics & Optics

Protects delicate components such as semiconductors, sensors, and camera lenses from humidity-related failure.
Applied in storage of precision optical devices and instruments.

Secondary Uses

Food Industry (Non-Contact Use)

Used in food packaging (outside primary packaging) to prevent spoilage from moisture, especially in dry products like jerky, spices, and powders. (Note: Not food-grade)

Aerospace & Military

Included in containers and crates of high-value equipment to prevent moisture-induced degradation.
Protects avionics, firearms, and optical scopes in storage and transit.

Museums & Archival Storage

Maintains ideal humidity in archival boxes, display cases, and vaults storing valuable artworks, manuscripts, and textiles.

Consumer Applications

Used in toolboxes, closets, shoe boxes, gun safes, and storage bins to reduce musty odors and mold risk.

Prevents fogging in camera bags and underwater housings.

PRODUCT KEY FEATURES

Basic Identification Attributes

Chemical Name (IUPAC): Silicon dioxide, amorphous
Common/Trade Name: Silica Gel White
CAS Number: 7631-86-9
HS Code: 2811.22.00
Synonyms: Non-indicating silica gel, white desiccant silica, SiO₂ gel

Physical & Chemical Properties

Physical State: Solid (granules, beads, or crystals)
Color & Odor: White; odorless
Particle Size: Commonly 1–5 mm
Surface Area: 600–800 m²/g
Moisture Capacity: Up to 40% of its own weight
Solubility: Insoluble in water and organic solvents
Regeneration Temperature: 120°C–150°C

Safety & Hazard Attributes

GHS Classification: Not classified as hazardous under normal use
Toxicity: Low; considered safe for most industrial applications
Exposure Limits: Avoid inhalation of dust; follow standard safety practices

Storage & Handling Attributes

Storage Conditions: Store in sealed, moisture-proof containers in a cool, dry place
Container Type: 25kg bag, drum, or moisture-resistant packaging
Shelf Life: Indefinite if stored properly
Handling Precautions: Avoid generating dust; use gloves and goggles during handling

Regulatory & Compliance Attributes

Complies with industry standards for moisture control agents
Meets U.S. Military Specification MIL-D-3464 for desiccants
REACH and RoHS compliant
Not classified as a hazardous material under GHS
Not approved for direct contact with food or pharmaceuticals unless specified food/pharma grade

Environmental & Health Impact

Biodegradability: Inert and non-biodegradable
Ecotoxicity: Very low; safe for general use
Bioaccumulation: Not applicable

Environmental Impact: Minimal if disposed of properly; recyclable after regeneration

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Dust mask, gloves, and eye protection recommended during handling
Handling Guidelines: Avoid inhaling dust; wash hands after use
Storage Measures: Keep containers tightly closed and stored in a dry environment

First Aid Measures

Inhalation: Move to fresh air; seek medical attention if irritation occurs
Skin Contact: Wash with soap and water; seek help if irritation develops
Eye Contact: Flush with water for at least 15 minutes; consult a doctor if irritation persists
Ingestion: Rinse mouth; do not induce vomiting; seek medical attention if discomfort occurs

Firefighting Measures

Fire Hazards: Non-flammable and chemically inert
Extinguishing Media: Use appropriate media for surrounding fire (e.g., CO₂, dry chemical, foam)
Special Precautions: None for silica; avoid inhaling smoke from surrounding materials
Hazardous Combustion Products: None—silica is thermally stable