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Product Name: Tierra de Diatomeas
Other Names: Diatomaceous Earth, Kieselguhr
Recommended Uses: Filtration aid, insecticide, absorbent, anti-caking agent, soil conditioner
Supplier Details: Manufacturer’s address, phone number, emergency contact must be listed on actual package
CAS Number: 61790-53-2 (amorphous silica)
UN Number: Not classified as dangerous for transport
Email: Contact through supplier for safety requests
GHS Classification: Not classified as hazardous under GHS
Main Hazards: Fine powder can cause respiratory irritation; long-term exposure to crystalline silica (possible contaminant) leads to chronic lung issues; eye irritation on direct contact
Label Elements: No pictogram required for amorphous form; crystalline form notes “Danger: May cause cancer through inhalation”
Health Hazards: May dry skin; dust aggravates asthma and causes coughing
Environmental Hazards: Considered inert in most environments; large spills can cause siltation
Precautionary Statements: Avoid creating dust, wear suitable masks if airborne, wash hands after handling
Chemical Name: Amorphous silicon dioxide
Typical Composition: SiO₂ >85%, Al₂O₃ <5%, Fe₂O₃ <2%, trace minerals
Impurities: May contain small amounts of crystalline silica (quartz)
Molecular Formula: SiO₂
Other Constituents: Water (variable), organic remnants, alumina, iron oxide, clay
Inhalation: Move exposed persons to fresh air, seek medical help if symptoms persist; administer oxygen if breathing is difficult
Skin Contact: Wash with soap and water, hydrate skin with lotion if dryness occurs
Eye Contact: Flush with copious amounts of clean water for at least 15 minutes, remove contacts, get medical help if irritation continues
Ingestion: Rinse mouth, offer water, consult a physician; material is considered non-toxic at small accidental doses
Advice for Doctor: No specific antidote, treat symptomatically
Suitable Extinguishers: Use dry powder, foam, carbon dioxide, water spray
Unsuitable Extinguishers: None known
Fire/Explosion Hazards: Not flammable, not combustible
Hazardous Combustion Products: At extreme temperatures, may produce silicon oxides, no unusual toxic fumes
Protective Equipment: Standard firefighter gear, self-contained breathing apparatus for dust clouds
Other: Product acts as absorbent rather than fuel
Personal Protection: Wear dust mask (P2 or N95), safety goggles, gloves
Environmental Precautions: Prevent large spills from entering waterways
Spill Clean-Up Methods: Avoid dry sweeping, use vacuum with HEPA filter or wet sweeping; collect for disposal
Other: Use ventilation in enclosed spaces to reduce airborne dust
Safe Handling Techniques: Minimize dust generation, use local exhaust ventilation, keep containers sealed
Handling Advice: Keep away from incompatible materials, don’t eat, drink, or smoke during use
Storage Conditions: Store in dry, well-ventilated place, keep away from humidity and strong acids
Container Materials: Paper sacks, plastic-lined bags, bulk silos
Incompatibilities: Strong acids, hydrofluoric acid
Workplace Exposure Limit: OSHA PEL for amorphous silica: 20 mppcf (80 mg/m³/%SiO₂); ACGIH TLV: 10 mg/m³ (inhalable), 3 mg/m³ (respirable)
Engineering Controls: Local exhaust ventilation, dust extraction systems, avoid recirculating dusty air
Personal Protective Equipment: Dust mask or respirator (P2 or N95 for nuisance dust), safety goggles, gloves, protective clothing
Hygiene Measures: Wash hands before eating or drinking, shower after heavy exposure
Environmental Exposure Controls: Use spill containment and dust suppression in large-scale operations
Appearance: Fine, off-white to light tan powder
Odor: Odorless
pH: 6.5–8.5 (10% in water)
Melting Point: >1500°C
Boiling Point: Not applicable
Flash Point: Not combustible
Evaporation Rate: Not applicable
Flammability: Non-flammable
Vapor Pressure: Not applicable
Vapor Density: Not applicable
Bulk Density: 120–250 kg/m³
Solubility in Water: Insoluble, but disperses
Other Solubilities: Slight in strong alkalies, decomposes in hydrofluoric acid
Chemical Stability: Stable under normal handling and storage
Reactivity: Unreactive with most substances
Hazardous Reactions: Reacts with hydrofluoric acid releasing toxic silicon tetrafluoride
Hazardous Decomposition Products: None under normal conditions
Conditions to Avoid: Exposure to strong acids, high humidity (promotes lumping)
Incompatible Materials: Hydrofluoric acid, strong bases
Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: LD50 (oral, rat): >5000 mg/kg (low toxicity)
Chronic Effects: Long-term inhalation of crystalline silica dust (if present) causes silicosis, lung cancer; amorphous form is less risky
Sensitization: No skin sensitization reported
Carcinogenicity: IARC classifies amorphous forms as not classifiable; crystalline silica as Group 1 (carcinogenic)
Other Effects: Drying, mild irritation of skin and eyes
Ecotoxicity: Not toxic to aquatic or terrestrial life in usual quantities
Persistence/Degradability: Inert, does not degrade in environment
Bioaccumulation Potential: None, not absorbed by living organisms
Mobility in Soil: Moves with water as suspended particle
Other Information: Particulate runoff may cause siltation in streams affecting bottom-dwelling organisms; keep large spills out of water bodies
Waste Disposal: Can be disposed with regular solid waste if uncontaminated; bag dust to minimize release
Hazardous Waste: Not classified as hazardous waste under RCRA
Recycling: Possible for use as fill, absorbent, or bulking agent
Incineration: Not suitable for incineration
Other: Check local, regional, and national regulations
UN Number: Not regulated
Transport Classification: Not classified as dangerous for transport by road, rail, sea, or air
Proper Shipping Name: Not regulated
Packaging Requirements: Use robust bags to prevent dust escape; secure against rain
Special Precautions: Minimize dust during loading/unloading
OSHA: Covered under general dust/fume safety standards
TSCA: Listed in inventory
WHMIS (Canada): Not classified as hazardous
EU Regulations: Not classified hazardous as a substance; crystalline silica content must be tracked
Other International Standards: Compliant with REACH if less than 1% crystalline silica; product labels conform to GHS recommendations
Worker Protection: Employers must ensure dust control, PPE, safety training
