Aerosil 200
$ 6.21
Aerosil 200 is a fumed silica (synthetic amorphous silicon dioxide) produced by flame hydrolysis of silicon tetrachloride. It appears as a very fine, white, fluffy powder with high surface area and excellent thickening and anti-caking properties.
Aerosil 200
Primary Uses
- Reinforcing Agent in Polymers & Elastomers
- Improves mechanical strength and abrasion resistance in:
- Silicone rubber (seals, gaskets, medical devices)
- Epoxy resins (coatings, adhesives)
- PVC, polyurethanes (cables, automotive parts)
- Thickening & Anti-Settling Agent
- Prevents sagging in:
- Paints, coatings, inks (improves viscosity)
- Cosmetics (lotions, creams, toothpaste)
- Adhesives & sealants (enhances stability)
- Free-Flow Agent for Powders
- Prevents caking in:
- Pharmaceutical tablets (improves powder flow)
- Food powders (spices, instant drinks)
- Industrial chemicals (pigments, detergents)
- Matting Agent
- Reduces gloss in:
- Paints, varnishes (architectural/automotive finishes)
- Plastics & films (packaging, synthetic leather)
Secondary Uses
- Battery & Energy Storage
- Improves electrolyte stability in lithium-ion batteries.
- Catalyst Support
- High surface area (200 m²/g) for chemical catalysis.
- 3D Printing
- Enhances powder flowability in SLS (Selective Laser Sintering).
- Thermal Insulation
- Used in aerogels and high-temperature insulation.
- Defoaming Agent
- Controls foam in industrial processes (e.g., wastewater treatment).
1. Basic Identification Attributes
- Chemical Name: Propan-2-one (IUPAC), Acetone (common)
- CAS Number: 67-64-1
- HS Code: 2914.11.00
- Molecular Formula: C₃H₆O
- Synonyms: Dimethyl ketone, 2-propanone
2. Physical & Chemical Properties
- Physical State: Liquid
- Color & Odor: Colorless, pungent sweetish odor
- Boiling Point: 56°C | Melting Point: -95°C
- Density: 0.791 g/cm³
- Solubility: Miscible in water, ethanol, ether
- pH Level: ~7 (neutral)
- Vapor Pressure: 233 mmHg (25°C)
- Flash Point: -20°C (highly flammable)
- Autoignition Temperature: 465°C
- Viscosity: 0.32 cP (25°C)
3. Safety & Hazard Attributes
- Hazard Class: Flammable Liquid (GHS Category 2), Eye Irritant
- NFPA Ratings: Health (1), Flammability (3), Reactivity (0)
- Exposure Limits: OSHA PEL (1000 ppm), ACGIH TLV (500 ppm)
- Reactivity: Incompatible with strong oxidizers, acids
4. Storage & Handling Attributes
- Storage Conditions: Cool, well-ventilated, away from ignition sources
- Incompatible Materials: HNO₃, H₂O₂, halogens
- Container Type: Plastic (HDPE) or metal (stainless steel)
- Shelf Life: Indefinite if sealed properly
- Special Handling: Use explosion-proof equipment, chemical gloves
5. Regulatory & Compliance Attributes
- Regulatory Status: EPA (non-HAP), REACH registered, DOT Class 3 (flammable)
- Hazard Symbols: ⚠️ (Flammable), GHS02, GHS07
- Transportation Restrictions: UN1090, Packing Group II
- Waste Disposal: Incineration or RCRA-approved solvent recovery
6. Environmental & Health Impact
- Ecotoxicity: LC50 (fish, 96h) = 4.3 g/L (low toxicity)
- Persistence: Readily biodegradable (half-life < 5 days)
- Carcinogenicity: Not classified (IARC Group 3, OSHA non-carcinogen)
Safety Precautions
Personal Protective Equipment (PPE):
- Respiratory: NIOSH-approved N95 respirator (for dust)
- Eye Protection: Tight-fitting safety goggles
- Gloves: Nitrile or neoprene
- Body: Long-sleeved clothing + lab coat
Handling & Storage:
- Avoid dust generation (use closed systems where possible)
- Ground equipment (static electricity hazard)
- Store in sealed containers away from moisture
- Keep away from strong oxidizers (e.g., peroxides)
Hygiene Practices:
- No eating/drinking in handling areas
- Wash hands/face after use
- Provide emergency eyewash station
First Aid Measures
Inhalation (Dust):
- Move to fresh air immediately
- If breathing is difficult, seek medical attention
Eye Contact:
- Rinse with water for 15+ minutes (hold eyelids open)
- Seek medical help if irritation persists
Skin Contact:
- Wash with soap and water
- Apply moisturizer if dryness occurs
Ingestion:
- Rinse mouth with water
- Drink plenty of water
- Do NOT induce vomiting
- Seek medical advice
Firefighting Measures
Fire Hazards:
- Non-flammable but may form explosive dust clouds
- Decomposes at >1000°C, releasing crystalline silica dust
Extinguishing Media:
✔ Water spray (best for dust suppression)
✔ CO₂
✔ Dry chemical powder
Firefighting Precautions:
- Wear SCBA (self-contained breathing apparatus)
- Avoid raising dust during firefighting
- Cool containers with water spray
Spill & Disposal
Small Spills:
- Wear dust mask + gloves
- Dampen with water mist to suppress dust
- Sweep up carefully
Large Spills:
- Isolate area
- Use industrial vacuum (explosion-proof)
- Prevent entry into drains/waterways
Disposal:
- Dispose as non-hazardous waste (unless contaminated)
- Follow local silica dust regulations
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