MSDS for Bis (2,4-Dichloro Benzoyl) Peroxide Enox DCBP

Identification

Product Name: Bis (2,4-Dichloro Benzoyl) Peroxide Enox DCBP
Chemical Family: Organic Peroxide
Recommended Use: Initiator in polymerization, crosslinking agent
Supplier: Contact manufacturing or distribution source for exact details
Emergency Phone: Refer to relevant national poison center or manufacturer's emergency number
Synonyms: DCBP, Enox DCBP, 2,4-Dichlorobenzoyl peroxide

Hazard Identification

Physical Hazards: Highly reactive organic peroxide, strong oxidizer, explosion risk under heat, shock, or friction
Health Hazards: Skin irritant, moderate to severe eye irritant, may cause allergic skin reactions, possible respiratory tract irritation
Environmental Hazards: Harmful to aquatic organisms, possible long-term adverse effects in the aquatic environment
GHS Classification: Organic Peroxide Type C, Skin Irritation Category 2, Eye Irritation Category 2A, Chronic Aquatic Toxicity Category 2
Signal Word: Danger
H Statements: May cause fire or explosion; strong oxidizer, causes skin and eye irritation, toxic to aquatic life with long lasting effects
Pictograms: Flame over circle, exclamation mark, environment

Composition / Information on Ingredients

Chemical Identity: Bis (2,4-Dichlorobenzoyl) Peroxide
Molecular Formula: C14H6Cl4O4
CAS Number: 133-14-2
EC Number: 205-095-5
Concentration: >98% (technical grade may include stabilizing agents such as phthalates or mineral oil at less than 2%)
Impurities/Other Components: Low levels of related peroxides, residual benzoyl chlorides

First Aid Measures

General Advice: Move to fresh air, provide symptomatic support
Inhalation: Remove person to fresh air, monitor breathing, seek medical attention for respiratory symptoms such as coughing, wheezing
Skin Contact: Remove contaminated clothing, wash skin thoroughly with water and mild soap, seek medical advice if irritation persists
Eye Contact: Rinse cautiously with water for at least 15 minutes, lift eyelids occasionally, remove contact lenses if present and easy to do, get medical attention
Ingestion: Rinse mouth thoroughly, do not induce vomiting, seek prompt medical assistance
Notes for Physicians: Provide symptomatic and supportive treatment, manage burns and respiratory symptoms

Fire-Fighting Measures

Suitable Extinguishing Media: Dry sand, foam, CO2, water spray for cooling containers, do not use direct water jet
Special Hazards: May decompose explosively under confinement or fire conditions, yields toxic gases such as HCl, CO, CO2
Firefighting Advice: Wear full protective gear including self-contained breathing apparatus, evacuate area of non-essential personnel, contain run-off
Unusual Hazards: Accelerates combustion of other materials, containers may rupture explosively
Decomposition Products: Hydrogen chloride, phosgene, chlorine, carbon oxides

Accidental Release Measures

Personal Precautions: Evacuate area, use personal protective equipment, ventilate area, prevent contact with skin and eyes
Environmental Precautions: Prevent discharge to sewers and surface waters
Clean-Up Procedures: Eliminate all ignition sources, collect with non-combustible absorbent material (e.g., vermiculite, sand), place in secure, labeled container for disposal, do not use combustible materials for clean-up, avoid creating dust
Disposal: Dispose of in compliance with local and national regulations

Handling and Storage

Handling: Avoid friction, impact, and contamination, use spark-proof equipment, minimize dust generation, avoid inhalation and contact with skin or eyes, do not mix with incompatible substances
Storage: Store in original, tightly closed containers away from heat sources, direct sunlight, and incompatible materials (acids, bases, solvents), keep temperature below recommended maximum (typically below 30°C or as specified by supplier), secure from unauthorized access
Incompatibilities: Reducing agents, strong acids, alkalis, amines, combustible materials
Other Precautions: Rotate stock, monitor container integrity regularly

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established ACGIH or OSHA limits for this specific compound, handle as a reactive organic peroxide
Engineering Controls: Local exhaust ventilation, explosion-proof ventilation systems recommended in processing areas
Respiratory Protection: Approved respiratory protection for powders, dusts, or if ventilation is inadequate
Eye Protection: Chemical splash goggles or face shield
Skin Protection: Impervious gloves (such as nitrile), long-sleeved clothing, laboratory coat, closed shoes
Hygiene Measures: Wash thoroughly after handling, change contaminated clothing, store separate from eating areas

Physical and Chemical Properties

Appearance: Off-white to pale yellow crystalline powder
Odor: Faint aromatic
Melting Point: Approximately 102-110°C
Boiling Point: Decomposes before boiling
Solubility: Insoluble in water, soluble in organic solvents (chlorinated hydrocarbons, acetone)
Vapor Pressure: Negligible at room temperature
Density: Approximately 1.5 g/cm³
pH: Not applicable (insoluble in water)
Explosion Properties: Explosive if heated or subjected to shock
Decomposition Temperature: Above 110°C, risk of violent decomposition

Stability and Reactivity

Chemical Stability: Stable under recommended conditions, sensitive to shock, heat, friction, or contamination
Conditions to Avoid: Heat, open flame, shocks, static discharges, incompatible materials
Incompatible Materials: Reducing agents, acids, alkalis, combustible materials, accelerators
Hazardous Decomposition Products: Acid chlorides, chlorinated hydrocarbons, carbon monoxide, phosgene
Polymerization: No hazardous polymerization expected in storage; violent exothermic reaction possible with certain monomers under uncontrolled conditions

Toxicological Information

Likely Exposure Routes: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Moderately toxic by ingestion (rat LD₅₀ 400-800 mg/kg), can irritate respiratory tract and mucous membranes
Skin Sensitization: May cause allergic reactions with repeated or prolonged contact
Eye Damage: Severe irritation possible leading to pain and redness
Chronic Effects: Limited evidence for chronic toxicity; not classified as carcinogenic
Other Symptoms: Redness, itching, burning on contact

Ecological Information

Ecotoxicity: Harmful to fish and other aquatic life (LC₅₀ fish typically below 10 mg/L)
Persistence and Degradability: Expected to hydrolyze and degrade under environmental conditions, but breakdown rate can vary due to temperature and pH
Bioaccumulation: Potential exists due to moderate hydrophobic character
Mobility: Low solubility in water may limit mobility, mostly binds to suspended solids or sediment
Other Effects: Avoid release to surface waters, wastewater, and soil

Disposal Considerations

Waste Handling: Manage as hazardous waste, do not pour down drain or mix with regular refuse
Disposal Method: Use approved incineration or chemical destruction facilities able to handle organic peroxides, follow national, regional, and local regulations
Contaminated Packaging: Empty container remains hazardous, destroy by chemical means, do not reuse drums or bags
Special Cautions: Never landfill untreated product, prevent accidental ignition during handling and storage prior to disposal

Transport Information

UN Number: 3108
Proper Shipping Name: Organic Peroxide Type C, Solid (Bis (2,4-dichlorobenzoyl) peroxide)
Hazard Class: 5.2 (Organic peroxide)
Packing Group: II (medium danger)
Special Precautions: Keep away from foodstuffs, avoid shock and high temperatures, package as recommended by regulation
Labeling: 5.2 (organic peroxide), Marine Pollutant
Transport Document Requirements: Follow ADR, IMDG, IATA rules for organic peroxides
Emergency Response Guide: Reference ERG Guide 145

Regulatory Information

Inventory Listings: Registered under REACH (EU), listed in TSCA Inventory (USA), AICS (Australia), DSL (Canada)
Classification: Subject to national chemical control laws as a hazardous and controlled substance
Label Elements: Follows GHS requirements for organs peroxides and irritants
Restrictions: Handling and use may be restricted in consumer or non-industrial applications
Other Provisions: Environmental reporting required for releases, compliance with workplace exposure legislation, process safety reporting for storage above threshold quantities
SDS Prepared By: Refer to source manufacturer for document version and preparation date