Product Name: High Dispersion Silica, Granule Silica
Chemical Formula: SiO2
Other Names: Amorphous Silica, Precipitated Silica, Silica Dust
Recommended Use: Reinforcing agent in rubber, filler in plastics, coating binder, food additive (where permitted), catalyst support
Manufacturer: Regional producers, global chemical brands in specialty markets
Contact Information: Refer to packaging or supplier documentation for regional contact details
Emergency Phone: Refer to local chemical emergency numbers listed by supplier
GHS Classification: Not classified as hazardous under typical handling, may produce nuisance dust
Signal Word: None required for unmodified forms
Hazard Statements: May cause respiratory irritation with prolonged inhalation, eyes and skin may become dry or irritated by dust contact
Precautionary Statements: Avoid breathing dust, wear eye protection and gloves, wash hands after handling, use with proper ventilation
Other Hazards: Contains no known carcinogens in amorphous form, crystalline silica may be present in trace but not typical in high dispersion products
Label Elements: Dust mask icon, gloves, and safety glasses on packaging
Chemical Name: Synthetic Amorphous Silica
CAS Number: 112926-00-8 (precipitated, high dispersion); 7631-86-9 (general or amorphous silica)
Concentration: 95%–100% Silica by weight
Other Ingredients: Small water content, manufacturing residue possible below 1%
Additives/Stabilizers: None for standard products, specialty treated grades may use surface modifiers at trace levels
Impurities: Trace sodium, aluminum or calcium compounds below 0.5%; no significant toxic metals
Inhalation: Move person to fresh air, seek medical advice with persistent coughing or discomfort
Skin Contact: Wash skin thoroughly using soap and water; apply moisturizer if dryness or irritation occurs
Eye Contact: Rinse eyes gently with water for several minutes; seek medical attention if irritation continues
Ingestion: Rinse mouth, drink water to dilute; not considered toxic but consult a doctor if large amounts are swallowed
Most Important Symptoms: Respiratory discomfort, skin dryness, eye irritation from mechanical dusting
Advice to Physician: Symptomatic treatment only, no specific antidote
Suitable Extinguishing Media: Not flammable, use water spray, foam, or dry powder for surrounding fire
Unsuitable Extinguishing Media: None known for this material
Specific Hazards: Dust clouds can form explosive particles with organic dust, but silica itself is not a fuel
Protective Equipment: Firefighters should wear standard PPE and NIOSH-approved respirators for particulate
Special Procedures: Use standard firefighting methods, avoid inhaling smoke from fire involving packaging material
Personal Precautions: Avoid breathing dust; wear dust mask, safety goggles, gloves
Environmental Precautions: Prevent entry into sewers and waterways by containing with suitable barriers
Cleanup Procedures: Use gentle vacuuming or wet sweeping, avoid generating further dust; dispose in containers with tight lids
Decontamination: Wash area with water to remove residue after bulk cleanup
Disposal: Gather up using shovel or suitable equipment, recycle or dispose according to local regulations
Handling: Use with adequate ventilation, avoid dry brushing or compressed air that creates airborne dust
Storage Conditions: Store in dry, cool, and well-ventilated place; keep containers sealed to avoid moisture absorption
Incompatible Materials: Strong acids or bases result in dissolution of silica, avoid storing near hydrofluoric acid (which reacts violently)
Hygiene Practices: Wash hands before eating, do not consume food or drinks in handling area
Other Instructions: Use transfer systems that minimize dust, maintain storage temperature below 40°C for optimal material shelf-life
Occupational Exposure Limits: OSHA PEL 6 mg/m³ (total dust); ACGIH TLV 10 mg/m³ (inhalable, nuisance dust seat)
Engineering Controls: Local exhaust ventilation around transfer and mixing points
Personal Protection: NIOSH-approved particulate respirator for dusty environments, safety glasses with side shields, chemical-resistant gloves
Other PPE: Protective clothing if frequent exposure; shower facilities recommended in high-use settings
Exposure Monitoring: Periodic workplace air testing by industrial hygienist if exposures approach limits
Appearance: White powder or granules, no odor
Molecular Weight: 60.08 g/mol
Melting Point: Approximately 1710°C
Boiling Point: Not applicable; sublimes at high temperatures
Solubility: Insoluble in water and most solvents
Density: Bulk density ranges from 100 to 500 kg/m³ depending on form; true density 2.2 g/cm³
pH: 6–8 in 5% aqueous slurry
Vapor Pressure: Not volatile
Explosion Limits: Not applicable (not combustible)
Chemical Stability: Stable under recommended handling and storage, non-reactive toward most substances
Incompatible Materials: Hydrofluoric acid, hot concentrated alkali solutions
Hazardous Decomposition: None under normal use
Polymerization: Will not occur
Reactivity: Reacts with HF to form silicon tetrafluoride gas; otherwise inert
Acute Toxicity: Low, no acute toxicity observed in standard laboratory studies
Chronic Toxicity: Prolonged inhalation of fine dust may cause lung effects, but crystalline silica hazards not present in amorphous forms
Sensitization: Not known to cause skin or respiratory sensitization
Mutagenicity: No evidence from animal or cell culture tests
Carcinogenicity: Not classified as carcinogenic by IARC in its amorphous form
Reproductive Toxicity: No known effects
Other Health Effects: Skin dryening with direct, repeated contact
Ecotoxicity: Practically non-toxic to aquatic life, does not bioaccumulate
Persistence and Degradability: Chemically inert, does not degrade in the environment
Bioaccumulation: Not expected due to insolubility
Mobility in Soil: Low, remains mostly at point of release unless physically dispersed
Additional Notes: Non-hazardous in environmental release at industrial concentrations
Waste Disposal Methods: Dispose in landfill according to national or local regulations; recycling may be an option at some sites
Contaminated Packaging: Clean thoroughly, may recycle if not contaminated with hazardous substances
Special Precautions: Avoid dispersal of dust into the air during waste handling
Legal Requirements: Follow all regional, national, and local waste management laws
UN Number: Not regulated for transport
Transport Hazard Class: Not classified as dangerous
Packing Group: Not assigned
Environmental Dangers: No known hazards
Special Transport Notes: Ensure containers remain sealed and dry during shipping
OSHA Status: Regulated as nuisance particulate
TSCA: Listed on the Toxic Substances Control Act inventory
REACH: Registered under EU REACH
SARA 313: Not subject
WHMIS: Exempt or classified as non-hazardous in Canada
Other Regulations: Complies with local and national chemical safety regulations where sold
