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Name: Cumene Hydroperoxide mixed with Type A Diluent
Common Uses: Used in polymerization, synthetic resin production, and as an initiator in chemical manufacturing
Appearance: Clear to pale yellow oily liquid, sharp irritating odor
Other Identifiers: Recognized in industrial settings for potential instability and energetic decomposition
Physical Hazards: Organic peroxide, presents explosion risk under confinement or heat, releases oxygen, can ignite combustibles
Health Hazards: Causes severe skin burns and eye damage; inhalation leads to respiratory issues, dizziness, headache; possible mutagenic effects
Environmental Hazards: Harmful to aquatic life; accidental discharges raise immediate concerns for water contamination and bioaccumulation
Pictograms: Corrosive, explosive, acute toxicity, environment (under GHS/CLP)
Cumene Hydroperoxide: 80-90% by weight
Type A Diluent (organic solvent, specifics often confidential): 10-20% by weight
Impurities: Often trace amounts of cumene, phenol or related organics, sometimes water or stabilizers
Inhalation: Move person to fresh air, monitor for breathing difficulty, seek prompt medical attention
Skin Contact: Remove contaminated clothing, rinse skin with large volumes of water, avoid scrubbing, get medical help
Eye Contact: Rinse eyes with clean water for at least 15 minutes, keep eyelids open, seek ophthalmologic care immediately
Ingestion: Do not induce vomiting, sip water if conscious, immediate hospital treatment required due to corrosive injury risk
Extinguishing Media: Use water spray, foam, or dry chemical; carbon dioxide may be less effective
Specific Risks: Self-accelerating decomposition possible, generates flammable vapor, releases hazardous fumes like carbon monoxide, phenol
Protective Equipment: Full protective suit, self-contained breathing apparatus; cool containers with water from a safe distance
Unusual Hazards: Avoid direct water jet, which might spread burning liquid or cause violent reaction
Personal Precautions: Evacuate unnecessary personnel, use chemical goggles, gloves, protective suit
Environmental Precautions: Block direct drainage to water, soil, or storm sewers
Cleanup Methods: Absorb spills with inert material like vermiculite, avoid combustible sorbents, store spill residue in secure containers for disposal
Decontamination: Ventilate, wash contaminated area with dilute sodium thiosulfate or sodium bisulfite to neutralize peroxide if safe to do so
Safe Handling: Use only in well-ventilated or explosion-proof areas, prevent contamination from metals, acids, bases, or organic matter
Equipment Needs: Non-sparking tools, grounded containers, bonding for transfer
Storage Recommendations: Keep in tightly closed containers, store in cool, dry, designated peroxide cabinets, away from sunlight, heat, or ignition sources
Segregation: Separate from reducing agents, strong acids or bases, oxidizers, and combustible materials to avoid hazardous reactions
Engineering Controls: Local exhaust, gas detectors, explosion-proof equipment, emergency wash stations
Personal Protective Equipment: Impermeable gloves, chemical-resistant apron, face shield or chemical goggles, respiratory protection if vapor levels might rise
Monitoring: Regular review of air quality, especially where vulnerable workers are present
Occupational Exposure Limits: Workplace limits set for organic peroxide category, but cumulative exposure often guided by local regulation and evidence from chronic effect studies
State: Liquid
Color/Odor: Colorless to pale yellow, strong characteristic odor
Boiling Point/Range: Tends to decompose before boiling
Solubility: Limited solubility in water, better in ethanol, organic solvents
Vapor Pressure: Low at room temperature, substantial risk rises with heat
Flash Point: Below 80°C; decomposition can trigger ignition below this
Other Properties: Readily decomposed by heat, light, or contact with contaminants
Stability: Thermally unstable, can decompose violently under improper storage
Incompatible Materials: Accelerates exothermic reactions with metals, acids, amines, and combustibles
Hazardous Reactions: Uncontrolled self-accelerating decomposition can rupture containers
Decomposition Products: Emits phenol, acetone, methane, carbon monoxide, other volatile organics
Acute Health Effects: Skin burns, eye corrosion, inhalation causes upper respiratory edema, nausea, central nervous system depression
Chronic Health Effects: Suspected mutagenicity, possible cumulative organ injury with repeated exposure, not classified as carcinogenic under current global agreement but warrants caution
Routes of Exposure: Inhalation and dermal most critical, direct skin or eye contact particularly dangerous
Symptom Profile: Redness, pain, loss of protective reflex in eyes, headaches, confusion, poor coordination, long-term skin sensitivity
Persistence/Degradability: Degrades in water through oxidation but at a slow pace; products often toxic to aquatic species
Bioaccumulation Potentials: Mobile in aquatic settings, some breakdown products can accumulate within aquatic organisms
Aquatic Toxicity Data: Acute risks for fish and invertebrates at low concentrations; delayed recovery of natural water populations recorded after spills
Soil Behavior: Peroxides leach and degrade, but residual diluent may persist longer, raising risk for ground contamination events
Hazardous Waste Handling: Dispose through licensed chemical waste contractors; small quantities should never be flushed or incinerated casually
Recommended Methods: Stabilize peroxide prior to disposal, destroy with approved chemical reductants if possible
Container Requirements: Clean thoroughly, triple-rinse using safe non-reactive solvents before recycling or landfill, puncture to prevent misuse
Legal Notes: Disposal monitored closely under hazardous waste programs owing to energetic and persistent hazards
UN Number/Designation: Transported as organic peroxide, subject to strict labeling, segregation, and route restrictions
Packaging Group: Typically Group II or I based on active peroxide strength
Transport Hazards: Temperature control often vital, avoid heat and stacking during shipping, use specialty containers with venting
Regulatory Requirements: Shipping documentation must reflect active peroxide quantities, presence of diluent, emergency response guides
National/International Listings: Included under major workplace safety, pollution control, and chemical accident prevention rules
Worker Safety Controls: Hazard communication, risk management plans, employee training under chemical hygiene regulations
EHS Reporting: Spills or releases require immediate reporting to local environmental authorities, may trigger site audits
Labeling: Globally Harmonized System (GHS) pictograms, correct signal word and hazard statements, safety instructions required everywhere it’s handled
