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Common Name: Propionyl Peroxide, diluted with Type B carrier
Concentration: Less than or equal to 27% active content
Appearance: Clear or slightly yellow liquid
Odor: Often sharp, sometimes reminiscent of acetic or propionic acid
Uses: In laboratories and certain polymer manufacturing operations
CAS Numbers: Propionyl peroxide and varying proprietary diluent blends
Relevant Industry: Chemical processing, research settings
Hazard Class: Organic peroxide, presents risks of explosion and fire
Acute Risks: Eyes, skin, and respiratory tract are especially sensitive to contact
Chronic Concerns: Prolonged or repeated exposures raise risk of respiratory irritation
Major Emergency Signs: Intense coughing, burning sensation, and possible breathing difficulty
Physical Dangers: Reacts with heat, friction, or contaminants; can evolve oxygen rapidly
Active Component: Propionyl peroxide, ≤ 27% by mass
Diluent Carrier: Type B, ≥ 73%; often includes phthalates or hydrocarbons
No Universal Standard: Carriers adapted depending on supplier, mostly for safer shipping and use
Eye Exposure: Immediate water flush, for a period no less than 15 minutes, seek medical attention
Skin Contact: Remove contaminated clothing, wash skin with soap and copious water
Inhalation: Move to fresh air immediately, support respiration as necessary
Ingestion: Do not induce vomiting, rinse mouth, seek urgent medical care
Suitable Media: Water spray, dry chemical, foam for containment; never use CO2 on peroxide fires
Hazards from Fire: Intense, rapid flame spread; risk of toxic fumes including CO and organic acids
Basic Protection: Full protective gear and positive-pressure breathing apparatus
Unique Considerations: Remove uninvolved containers if safe, cool surrounding areas with water spray, keep in mind potential for explosive decomposition
Evacuation: Exclude unnecessary personnel, ventilate space
Personal Protection: Chemical splash goggles, full-sleeve gloves, anti-static overalls
Containment: Non-combustible absorbent materials, avoid using organic material or sawdust
Cleanup: Place residue and absorbents in solvent-compatible, vented containers for safe disposal
Handling: No smoking, open flames, sparks; bond and ground containers if pumping
Storage: Cool, well-ventilated, away from direct sunlight or sources of heat
Segregation: Store away from acids, bases, reducing agents, strong oxidizers, and combustibles
Container Advice: Use only manufacturer-supplied containers, keep tightly closed
Ventilation: Mechanical exhaust preferred over natural airflow
Respiratory Protection: NIOSH-approved respirators if threshold limits approach
Skin and Eye Protection: Splash-proof goggles, solvent-resistant gloves, full-body suit if splash risk exists
Hygiene: Wash thoroughly after exposure, remove and isolate clothing
Physical State: Liquid at room temperature
Color: Clear to pale yellow
Odor: Sharp, slightly pungent
Boiling Point: Not well defined; depends on the diluent
Decomposition Temp: Self-accelerates above 50°C
Solubility: Poor in water, better in organic solvents
Stability: Unstable at elevated temperature or in presence of contamination
Chemical Instability: Heat, shock, friction, impurities can start rapid decomposition
Incompatible Materials: Acids, bases, many metals, reducing agents, organic matter
Hazardous Products: Decomposition produces gases and vapors, including oxygen, acids, carbon monoxide
Polymerization: Not a concern with proper diluent ratio, but accidental contamination can trigger runaway reaction
Routes of Entry: Inhalation, skin contact, eye contact
Acute Symptoms: Eye and skin burns, respiratory distress, strong irritation
Long-term Effects: Repeated exposure could sensitize the respiratory tract or skin
Special Notes: No reliable evidence of systemic toxicity in humans, but caution remains wise due to rare exposures
Environmental Fate: Decomposes rapidly in the environment, but intermediate products may harm aquatic life
Acute Hazard: Toxic to fish and algae at release concentrations
Persistence: Not persistent, but does cause immediate hazard if spilled in watercourses
Bioaccumulation: Unlikely due to rapid breakdown
Waste Management: Neutralize with reducing agents only by those with knowledge and training
Packaging: Leave vented and avoid resealing after contamination
Disposal: Send to incineration or chemical disposal specialists; avoid municipal landfills
Legal Obligations: Follow all federal and local regulations for organic peroxide wastes
Classification: Organic Peroxide, type suitable to active content and dilution
UN Numbers: Specific to mixture and carrier, follow up with regulatory bodies
Packing Requirements: Rigid, pressure-relief venting, secondary containment, no metal tools
Labeling: “Organic Peroxide,” flame and explosion pictograms, hazard codes as defined by shipping authority
OSHA: Covered under Hazard Communication Standard for workplace chemicals
EPA: Subject to reporting under release and spill requirements
Transport Regulations: International and domestic restrictions require documented training for all handling staff
Local Rules: Vary widely; check with regional hazardous substance offices for compliance details
