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Material Safety Data Sheet: Attapulgite Clay

Identification

Product Name: Attapulgite Clay
Chemical Name: Magnesium Aluminum Silicate
Synonyms: Palygorskite, Attagel, Colloidal Clay
Recommended Use: Absorbent, Thickener, Filtration Aid, Animal Feed Additive
Supplier Details: Manufacturer or distributor contact info printed on packaging or invoice
Emergency Contact: Local emergency services or poison control center

Hazard Identification

Classification: Not classified as hazardous under OSHA 29 CFR 1910.1200
GHS Label Elements: None required
Health Hazards: Long-term inhalation of dust may cause lung irritation or aggravate respiratory conditions
Physical Hazards: Product can become slippery when wet
Environmental Hazards: Not regarded as dangerous to the environment at typical use levels
Precautionary Statements: Avoid creating or breathing dust, use in well-ventilated area, wash thoroughly after handling

Composition / Information on Ingredients

Substance: Attapulgite Clay
Chemical Formula: (Mg,Al)2Si4O10(OH)·4(H2O)
CAS Number: 12174-11-7
Impurities: Natural components may include quartz (crystalline silica) or other clays at trace levels
Concentration: 90-100%

First Aid Measures

Inhalation: Move to fresh air, assist breathing if necessary, seek medical attention with persistent symptoms
Eye Contact: Rinse gently with clean water for several minutes, remove contact lenses, seek medical help for irritation
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, get medical advice if rash occurs
Ingestion: Rinse mouth, drink water, seek medical attention for discomfort or persistent effects

Fire-Fighting Measures

Flammability: Product itself is non-combustible
Suitable Extinguishing Media: Use media appropriate for surrounding fire such as water mist, foam, dry chemical, or CO2
Special Hazards: Heated containers may rupture; product becomes slippery when wet
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective clothing
Hazardous Combustion Products: None expected under normal conditions

Accidental Release Measures

Personal Precautions: Wear dust mask, gloves, and eye protection to avoid irritation
Environmental Precautions: Prevent dust from entering drains, sewers, or waterways
Cleanup Methods: Sweep up or vacuum spills, avoid generating harmful dust, dispose according to local regulations
Emergency Procedures: Isolate area, ventilate if necessary, notify appropriate authorities for large spills

Handling and Storage

Handling: Avoid breathing dust, minimize dust generation, use local exhaust or general ventilation, wear appropriate PPE
Hygiene Tips: Wash hands after use, refrain from eating or drinking around open product
Safe Storage: Keep bags or containers tightly closed, store in cool dry place, protect from moisture
Incompatible Materials: Strong acids or bases may degrade product, avoid contact with reactive chemicals

Exposure Controls and Personal Protection

Exposure Limits: OSHA PEL for particulate not otherwise regulated: 15 mg/m³ total dust, 5 mg/m³ respirable
Engineering Controls: Use local exhaust or general room ventilation to control airborne dust
Personal Protective Equipment: NIOSH-approved dust respirator for dust exposure, gloves for prolonged contact, goggles for eye protection
Other Controls: Change clothes and shower after handling large amounts, clean work surfaces regularly

Physical and Chemical Properties

Appearance: Off-white to gray granular or powder form
Odor: Odorless
pH (in slurry): 7 - 10 at 5% dispersion
Melting Point: > 1000°C (some elements dehydrate at lower temperatures)
Boiling Point: Not applicable
Solubility: Insoluble in water, swells in contact with moisture
Bulk Density: 0.6 – 0.8 g/cm³
Vapor Pressure: Not applicable
Flash Point: Not applicable

Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Excessive moisture, deep or confined storage of large masses may create slip hazards
Incompatible Materials: Strong acids and strong oxidizing agents
Hazardous Decomposition Products: None anticipated under normal use
Reactivity: Not reactive under standard conditions

Toxicological Information

Primary Routes of Exposure: Inhalation, skin and eye contact
Short-Term Effects: Dust may cause eye or respiratory irritation
Long-Term Effects: Prolonged inhalation of respirable crystalline silica from trace impurities may increase risk of lung disease such as silicosis
Carcinogenicity: Respirable crystalline silica (in trace quantities) is classified as Group 1 carcinogen by IARC
Acute Toxicity: Data shows low oral and dermal toxicity
Sensitization: Not a known skin sensitizer

Ecological Information

Ecotoxicity: No adverse effects expected on aquatic or terrestrial organisms at ordinary environmental concentrations
Persistence and Degradability: Inorganic, not biodegradable
Bioaccumulative Potential: Not expected to bioaccumulate
Mobility in Soil: Limited due to particle size and insolubility
Other Adverse Effects: At high concentrations, may clog soils or aquatic habitats

Disposal Considerations

Waste Treatment Methods: Dispose as non-hazardous solid waste according to local, regional, or national regulations
Reuse: Material may be reclaimable for some applications
Contaminated Packaging: Empty containers can be reused or recycled after thorough cleaning, keep away from food and water sources
Precautions: Avoid releasing large quantities to the environment, ensure waste does not create dust clouds

Transport Information

UN Number: Not regulated as hazardous material for ground, air, or sea transport
Proper Shipping Name: Attapulgite Clay
Transport Hazard Class: None
Packing Group: None
Special Transport Precautions: Secure loads to prevent spillage, avoid transporting with incompatible products

Regulatory Information

OSHA: Not classified as hazardous under OSHA Hazard Communication Standard
EPA: Not listed as a hazardous substance
TSCA: Listed
SARA Title III: Not considered a reportable substance
State Regulations: Some states may have reporting requirements for trace amounts of crystalline silica
Other International Regulations: Check local regulations for workplace safety standards and environmental protection