Material Safety Data Sheet: Dilauroyl Peroxide Enox Lpo-98

Identification

Product Name: Dilauroyl Peroxide Enox Lpo-98
Other Names: DLP, Lauroyl Peroxide
Chemical Formula: C24H46O4
CAS Number: 105-74-8
Recommended Use: Polymerization initiator, crosslinking agent in plastics and rubbers
Supplier: Chemical distributor, details vary by country
Emergency Phone Number: Check with regional poison control or supplier information

Hazard Identification

GHS Classification: Organic Peroxide Type D; Skin Irritant Category 2; Eye Irritant Category 2
Pictograms: Flame, Exclamation mark
Signal Word: Danger
Hazard Statements: Heating may cause a fire; Causes skin irritation; Causes serious eye irritation
Precautionary Statements: Keep away from heat, sparks, open flames, hot surfaces. Wear protective gloves and eye protection. Store away from incompatible materials like reducing agents and strong acids. Avoid breathing dust or vapors. Wash thoroughly after handling.

Composition / Information on Ingredients

Chemical: Dilauroyl Peroxide
Concentration: 98% (w/w) active ingredient
Impurities: Trace amounts of lauric acid and water (less than 2%)
Other Components: No significant additives

First Aid Measures

General: Remove contaminated clothing, seek immediate medical attention for all exposures
Inhalation: Move to fresh air. Give oxygen if breathing is difficult. Consult a physician.
Skin Contact: Rinse skin with plenty of water for at least 15 minutes. Remove contaminated clothing.
Eye Contact: Immediately flush eyes with running water for at least 15 minutes. Keep eyelids open, seek medical help.
Ingestion: Rinse mouth; do not induce vomiting. Get medical attention immediately.
Symptoms: Skin redness, burning in eyes, coughing or shortness of breath if inhaled, stomach upset if ingested

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: Do not use water jet directly on substance due to risk of spreading fire
Specific Hazards: Decomposes at elevated temperatures, releases flammable and toxic vapors, can cause rapid combustion if ignited
Protective Equipment: Full-body suit, self-contained breathing apparatus, gloves, and goggles
Special Instructions: Cool containers with water, avoid inhaling fumes, keep away from drain and surface water

Accidental Release Measures

Spill Response: Evacuate the area, ventilate, remove ignition sources, apply non-sparking tools
Cleanup Methods: Collect with an inert, non-combustible absorbent like sand or earth, place in suitable container for disposal
Personal Precautions: Gloves, chemical splash goggles, respirators for large spills
Environmental Precautions: Prevent release into drains, surface waters, or soil

Handling and Storage

Handling: Avoid contact with skin, eyes, and clothing. Use only in well-ventilated areas or fume hoods. Avoid sources of heat, sparks, and open flames
Storage: Store in cool, dry, well-ventilated area away from direct sunlight. Keep in tightly closed original containers. Recommended temperature below 30°C (86°F). Incompatible with acids, reducing agents, amines, and combustibles. Do not store near food or drink. Avoid mechanical shock and friction.
Specific Requirements: Secondary containment, temperature monitoring, signage for hazardous peroxides

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established limits for dilauroyl peroxide. Recommended exposure: minimize as much as practical.
Engineering Controls: Use local exhaust ventilation, explosion-proof electrical equipment
Personal Protective Equipment: Chemical-resistant gloves, splash-proof safety goggles, lab coat, and, in high-exposure cases, a suitable respirator
Hygiene Measures: Wash hands before eating or drinking, remove contaminated clothing.
Environmental Controls: Minimize airborne concentrations, prevent spillage to water sources

Physical and Chemical Properties

Appearance: White powder or granular solid
Odor: Faint, similar to fatty acid esters
Odor Threshold: Not established
pH: Not applicable
Melting Point: 54 – 56°C
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: No data; organic peroxides decompose before ignition
Decomposition Temperature: ~60°C
Solubility: Insoluble in water, soluble in organic solvents (e.g., chloroform, benzene)
Vapor Pressure: Negligible
Density: 0.97–1.0 g/cm³
Partition Coefficient: No data
Autoignition Temperature: No reliable test value
Explosive Properties: Can explode if heated or shocked
Oxidizing Properties: Strong organic peroxide, dangerous if mismanaged

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions, may decompose at high temperatures
Possible Hazardous Reactions: Rapid or violent decomposition from heat, friction, shock, or contamination with incompatible materials
Conditions to Avoid: Heat, direct sunlight, sparks, open flames, contamination
Incompatible Materials: Strong acids, alkalis, reducing agents, metal catalysts, strong oxidizers, combustibles
Hazardous Decomposition Products: Carbon oxides, lauric acid, possible toxic fumes

Toxicological Information

Acute Toxicity: Low acute toxicity by ingestion and inhalation, higher risk from repeated exposure
Skin Corrosion/Irritation: May cause moderate irritation, redness, inflammation
Serious Eye Damage/Irritation: Causes significant irritation, possible injury with direct contact
Respiratory Sensitization: Dust may irritate respiratory tract. Sensitization unlikely but possible
Long-Term Effects: No concrete evidence of chronic effects, repeated exposure increases irritation risk
Carcinogenicity: Not listed by IARC, NTP, or OSHA as a carcinogen
Other Effects: No evidence for mutagenicity, teratogenicity, or reproductive toxicity at industry exposure levels

Ecological Information

Aquatic Toxicity: Harmful to aquatic organisms; avoid direct release
Persistence and Degradability: Slowly degrades in the environment. Hydrolyzes to lauric acid and other compounds.
Bioaccumulation Potential: Expected to have low potential for bioaccumulation
Mobility in Soil: Low; binds to soils due to hydrophobic nature
Other Hazards: Persistent contamination possible if not handled properly

Disposal Considerations

Waste Treatment Methods: Incinerate at high temperature in an approved facility. Dilution or burial not allowed.
Container Disposal: Rinse containers, then destroy by crushing prior to landfill disposal, per local guidelines
Disposal Considerations: Avoid release into drains, watercourses, or soil. Local regulations take priority
Special Instructions: Consult with environmental authorities before large-scale disposal. Never dispose with household garbage.

Transport Information

UN Number: 3106
UN Proper Shipping Name: Organic peroxide type D, solid (Dilauroyl Peroxide mixture)
Transport Hazard Class: 5.2 (Organic peroxide)
Packing Group: II
Labels Required: Oxidizer, organic peroxide
Marine Pollutant: Yes
Special Precautions: Keep away from foodstuffs, acids, and reducing agents during transport. Emergency procedures must be in place for spills and fires. Secure packaging, limit transport temperatures.

Regulatory Information

OSHA: Subject to Hazard Communication Standard, considered hazardous
EPA: Section 313 (SARA Title III) does not list dilauroyl peroxide
TSCA: Listed on the inventory
EU Regulation: REACH registered.
Other Local Requirements: Storage and usage controlled under local fire and chemical safety laws. Registration with local environmental and safety boards may apply.