Material Safety Data Sheet: 1,1-Bis(T-Butylperoxy)-3,3,5-Trimethylcyclohexane Enox TMCH-90MO

Identification

Product Name: 1,1-Bis(T-Butylperoxy)-3,3,5-Trimethylcyclohexane Enox TMCH-90MO
Synonyms: Perkadox 30, TMCH-90MO
Recommended Use: Polymerization initiator, crosslinking agent
Supplier: Industrial chemical manufacturer or distributor
Address: Refer to product label for current address
Emergency Phone Number: Refer to local regulations or product label for latest emergency contact
CAS Number: 6731-36-8
UN Number: 3115
EC Number: 229-760-0

Hazard Identification

Classification: Organic Peroxide, Type D; Harmful if inhaled; Causes serious eye damage; May cause respiratory irritation; Skin sensitizer; Flammable solid
Signal Word: Danger
Hazard Statements: Heating may cause a fire or explosion; Harmful if swallowed, inhaled or in contact with skin; Causes serious eye irritation; May cause an allergic skin reaction; May cause respiratory irritation
Precautionary Statements: Keep away from heat, sparks, flames, hot surfaces; Avoid breathing dust, fumes, gases or vapors; Wash thoroughly after handling; Wear protective gloves, clothing, eye and face protection
Pictograms: Flame, Exclamation Mark, Health Hazard
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion

Composition / Information on Ingredients

Chemical Name: 1,1-Bis(T-Butylperoxy)-3,3,5-Trimethylcyclohexane
Concentration: 90% active peroxide on mineral oil
Other Components: Mineral Oil (CAS: 8042-47-5, 10%) as stabilizer and diluent
Impurities: Less than 1%, no significant hazardous impurities identified
Molecular Formula: C19H38O4
Molecular Weight: Approx. 330 g/mol

First Aid Measures

Inhalation: Move affected person to fresh air, keep at rest. Seek medical attention for any breathing discomfort.
Skin Contact: Remove contaminated clothing and wash skin with plenty of soap and water for at least 15 minutes; get medical attention for irritation or allergic response.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if applicable, continue rinsing, seek immediate medical care.
Ingestion: Rinse mouth; do not induce vomiting. Seek medical advice at once. Never give anything by mouth to an unconscious person.
Most Important Symptoms: Redness, burning sensation, blistering, allergy, respiratory irritation, eye damage
Protection for Responders: Use chemical-resistant gloves and full face protection

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, dry chemical, alcohol-resistant foam, or carbon dioxide. Water jet may be ineffective on fires but useful to cool containers.
Extinguishing Media Not Recommended: Do not use direct high-pressure water jet due to risk of dispersal.
Special Hazards: Releases toxic gases under fire conditions including carbon monoxide, carbon dioxide; may cause explosion if confined.
Protective Equipment: Wear full bunker gear and self-contained breathing apparatus.
Special Firefighting Instructions: Evacuate area, keep containers cool with water spray, do not approach leaking containers near fire.
Hazardous Combustion Products: Carbon oxides, hydrocarbons, possibly other hazardous fumes
Additional Advice: Isolate hazard area, use firefighting procedure suited to local conditions.

Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel, ventilate area, put on suitable protective gear including gloves, goggles, and a respirator if vapors are present.
Environmental Precautions: Do not let product enter drains, surface water, or soil. Prevent further leakage or spillage if safe to do so.
Containment Methods: Remove all sources of ignition, use non-sparking tools, build barriers to prevent spread.
Cleanup Procedures: Absorb with inert material like sand or earth, collect in suitable, sealed containers for proper disposal.
Decontamination Methods: Wash spill area thoroughly with plenty of water after material has been picked up.
Emergency Procedures: Follow standard company response plan, notify authorities if required under local/regional regulations.

Handling and Storage

Handling: Handle peroxide with care using chemical-resistant gloves and eye protection, keep away from sources of heat, sparks, or flames. Avoid contact with skin, eyes, and clothing. Do not breathe dust or vapors.
Storage: Store in tightly closed containers in a well-ventilated, cool, dry place; keep away from incompatible substances such as strong acids, alkalis, reducing agents. Store below 30°C, avoid direct sunlight.
Specific Requirements: Storage rooms should have smooth, non-porous floors and be equipped with automatic sprinklers; protect containers from physical damage.
Incompatible Materials: Acids, bases, heavy metal salts, strong reducing agents
Packaging Materials: Use original manufacturer's container or compatible, properly labeled containers.

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established threshold limit value for this compound; observe general thresholds for organic peroxides.
Engineering Controls: Ensure adequate ventilation, use local exhaust for airborne concentrations; provide eyewash stations and emergency showers near work area.
Personal Protection Equipment (PPE): Chemical-resistant gloves (e.g. nitrile), lab coats, chemical splash goggles, face shield if splashing likely, use approved respirator if exposure limits are exceeded or during insufficient ventilation.
Hygiene Measures: Wash hands thoroughly after handling, do not eat, drink or smoke in working area, remove contaminated clothing before entering eating areas.
Environmental Controls: Implement containment and exhaust systems to prevent dust or vapor release.

Physical and Chemical Properties

Appearance: White to off-white paste
Odor: Slight, faint odor
Odor Threshold: Not determined
pH: Not applicable (non-aqueous)
Melting Point/Freezing Point: Below 0°C
Boiling Point: Decomposes before boiling
Flash Point: <80°C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable solid
Lower/Upper Explosive Limits: Not available
Vapor Pressure: Low at room temperature
Vapor Density: Not available
Relative Density: About 0.95 (water=1)
Solubility in Water: Insoluble
Solubility (Other): Soluble in organic solvents, e.g. toluene
Partition Coefficient: Not available
Autoignition Temperature: Not determined
Decomposition Temperature: >90°C
Viscosity: Not available
Physical State: Paste

Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling conditions, but decomposes violently if heated above recommended temperature.
Reactivity: Strong oxidizer, reacts with reducing agents, strong acids, and bases; can initiate hazardous polymerization with incompatible chemicals
Condition to Avoid: Heat, sparks, flames, friction, shock, and contamination with incompatible materials
Possibility of Hazardous Reactions: May form explosive mixtures with combustible materials; may undergo self-accelerating decomposition
Incompatible Materials: Metals, strong reducing agents, strong acids or alkalis, plasticizers, accelerators
Hazardous Decomposition Products: Carbon oxides, hydrocarbons, possible toxic fumes under fire or decomposition

Toxicological Information

Acute Toxicity: Harmful if swallowed or inhaled; LD50 (oral, rat) is estimated at 1200 mg/kg
Skin Corrosion/Irritation: Causes moderate to severe skin irritation
Serious Eye Damage/Irritation: Causes eye damage, risk of blindness on direct contact
Respiratory Sensitization: May cause respiratory discomfort or irritation
Skin Sensitization: Cases of allergic response noted upon repeated or prolonged exposure
Germ Cell Mutagenicity: No direct evidence in standard tests
Carcinogenicity: Not classified as a human carcinogen by IARC, NTP, OSHA
Reproductive Toxicity: No evidence of reproductive effects based on available data
STOT (Single Exposure): May cause drowsiness or dizziness
STOT (Repeated Exposure): Not identified
Aspiration Hazard: Not considered an aspiration hazard
Possible Chronic Effects: Prolonged or repeated exposure can cause dermatitis or skin sensitization

Ecological Information

Ecotoxicity: Toxic to aquatic life; avoid uncontrolled release to the environment
Persistence and Degradability: Product is not readily biodegradable;, breakdown may occur slowly in the environment
Bioaccumulative Potential: Data not available; structurally, moderate risk of accumulation in aquatic organisms
Mobility in Soil: Considered low due to low water solubility
Other Adverse Effects: May be hazardous to aquatic environments; contact with soil and waterways should be avoided

Disposal Considerations

Disposal Methods: Dispose of in accordance with local, regional, national regulations; do not pour into drains or release into the environment
Product Disposal: Incinerate under controlled conditions at a licensed facility; do not landfill peroxides
Contaminated Packaging: Triple rinse empty containers prior to disposal, treat rinsate as hazardous waste
Special Precautions: Avoid heat, shock, and friction during disposal; do not reuse container for other purposes

Transport Information

UN Number: 3115
UN Proper Shipping Name: Organic peroxide type D, solid (1,1-Bis(T-Butylperoxy)-3,3,5-Trimethylcyclohexane, 90%)
Transport Hazard Class: 5.2 (Organic peroxides)
Packing Group: II
Labels: Organic Peroxide, Marine Pollutant
Special Precautions: Keep away from sources of heat, direct sunlight; avoid impact and friction; do not stack pallets
Marine Pollutant: Yes
Emergency Response Guide: 145
Transport in Bulk: Follow applicable international regulations (e.g. IBC Code)

Regulatory Information

Safety, Health and Environmental Regulations: Covered by OSHA Process Safety Management for highly hazardous chemicals; subject to EPCRA reporting; considered hazardous by OSHA Hazard Communication Standard
TSCA: Listed in Toxic Substances Control Act Inventory
SARA Title III (Sections 302, 304, 313): Reportable quantity subject to applicable thresholds
REACH Status: Pre-registered; comply with REACH guidance for handling and exposure
Other State/Local Regulations: Check specific local and state requirements for use, storage, and disposal
Labeling Requirements: Comply with GHS, OSHA, and DOT labeling rules
Inventory Status: Included in country-specific chemical inventories where applicable