© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Tert-Amyl Hydroperoxide
Chemical Family: Organic Peroxide
Synonyms: 2,4,4-Trimethyl-2-pentyl hydroperoxide
Recommended Use: Industrial oxidizing agent, polymerization initiator
Supplier Details: ChemSpecialty Industries, 456 Science Park, Chicago, IL, USA, Tel: (312) 555-7890
Emergency Contact: CHEMTREC 1-800-424-9300 (USA); 1-703-527-3887 (International)
Product Code: TAHP-883
Hazard Classes: Flammable Liquid (Category 3), Organic Peroxide (Type E), Acute Toxicity (Category 4), Eye Irritant (Category 2A), Skin Irritant (Category 2)
Pictograms: Flame, Exclamation Mark
Signal Word: Danger
Hazard Statements: May cause fire; oxidizer, causes skin irritation, causes eye irritation, harmful if swallowed or inhaled, may cause respiratory irritation
Precautionary Statements: Keep away from heat, sparks, open flame, and hot surfaces, Do not breathe vapors or mist, Wear protective gloves, clothing, and eye/face protection, Wash hands thoroughly after handling, Use only outdoors or in well-ventilated area
Main Ingredient: Tert-Amyl Hydroperoxide (CAS 75-91-2), 82-88%
Diluent Type A: Proprietary non-reactive solvent blend, 6-9%
Water: Deionized, 6-9%
Impurities: Methanol, ≤0.3%; Acetone, ≤0.1%; No stabilizers present
Additional Information: Specific composition confidential under trade secret laws
Inhalation: Move exposed person to fresh air immediately, administer oxygen if breathing is difficult, seek medical attention if symptoms do not resolve
Skin Contact: Remove contaminated clothing, rinse skin with water for at least 15 minutes, seek medical help for irritation or burns
Eye Contact: Flush eyes with water for at least 20 minutes, remove contact lenses, get prompt medical evaluation
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, get immediate medical attention
Most Important Symptoms: Burning sensation, cough, headache, dizziness, nausea, potential pulmonary edema
Advice for Medical Staff: Treat symptomatically, monitor for chemical pneumonia if aspirated, monitor vital signs closely
Extinguishing Media: Dry chemical powder, carbon dioxide, water spray, do not use foam or halogenated agents
Hazards from Combustion: May emit carbon monoxide, carbon dioxide, and other toxic fumes, high heat may cause violent rupture or explosion of sealed containers
Special Firefighting Procedures: Wear self-contained breathing apparatus and full protective gear, move containers from fire area if it can be done safely
Advice for Firefighters: Cool exposed containers with water spray, keep upwind, evacuate area if fire cannot be controlled
Personal Precautions: Evacuate unnecessary personnel, provide adequate ventilation, avoid inhalation of vapors, avoid skin and eye contact
Protective Equipment: Chemical splash goggles, impervious gloves, chemical-resistant clothing, suitable respiratory protection if ventilation is inadequate
Environmental Precautions: Prevent further leakage or spillage if safe to do so, prevent entry into sewers, waterways, or confined spaces
Spill Containment: Absorb with inert material (vermiculite, sand), use clean non-sparking tools, collect in labeled containers for proper disposal, wash spill area with plenty of water
Safe Handling: Handle in closed containers, use non-sparking tools, ground and bond containers for transfer, avoid contact with eyes, skin, and clothing
Storage Conditions: Store refrigerated at 2–8°C, keep containers tightly closed, store in a cool, well-ventilated dedicated area away from heat, direct sunlight, and incompatible materials (acids, reducing agents, heavy metals)
Storage Incompatibilities: Acids, bases, strong oxidizers, combustible materials, fuming agents
Specific End Uses: Laboratory chemicals, polymerization initiator under controlled and supervised conditions
Occupational Exposure Limits: Tert-Amyl Hydroperoxide OSHA PEL: Not established, ACGIH TLV: Not established
Engineering Controls: Use local exhaust ventilation or enclosures for processes generating vapor or mist, safety showers and eyewash stations should be within 10 seconds’ reach
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), splash-proof goggles, long-sleeve chemical resistant lab coats, use respirator (NIOSH-approved half face with organic vapor cartridges) for inadequate ventilation
Hygiene Measures: Remove and wash contaminated clothing before reuse, no eating, drinking or smoking during use, wash hands thoroughly after handling, maintain good industrial hygiene
Appearance: Colorless to pale yellow liquid
Odor: Pungent, sharp
Odor Threshold: 0.2 ppm (estimated)
pH: Not available
Melting Point/Freezing Point: −10°C
Boiling Point: 120–135°C (decomposes)
Flash Point: 62°C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid and vapor
Upper/Lower Flammability Limit: Upper 7.6%, Lower 1.1% (by volume in air, estimated)
Vapor Pressure: 5 mmHg at 20°C
Vapor Density: 3.46 (air = 1)
Relative Density: 0.89 (water = 1)
Solubility: Slightly soluble in water, fully miscible with most organic solvents
Partition Coefficient (n-octanol/water): Log Pow ≈ 2.1
Autoignition Temperature: 305°C
Decomposition Temperature: 126°C
Viscosity: 2.7 cP at 25°C
Chemical Stability: Unstable when heated or contaminated, decomposes exothermically above 50°C
Reactivity: Violent reaction possible with strong acids, bases, reducing agents, and metal salts
Hazardous Reactions: May undergo violent decomposition upon shock, friction, or exposure to heat
Conditions to Avoid: Heat, sparks, open flame, mechanical shock, direct sunlight
Incompatible Materials: Acids, alkalis, oxidizers, reducing agents, heavy metals, amines, combustible substances
Decomposition Products: Combustion produces carbon monoxide, carbon dioxide, possible low-molecular-weight organic fragments
Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Oral LD50 (rat) 420 mg/kg, Dermal LD50 (rabbit) 750 mg/kg, Inhalation LC50 (rat, vapor) 2.5 mg/l/4h
Skin Corrosion/Irritation: Causes moderate to severe irritation, redness, blistering possible with extended contact
Serious Eye Damage/Irritation: Causes serious irritation, watering, redness, blurred vision
Respiratory Irritation: May cause irritation of upper respiratory system, coughing, sore throat
Carcinogenicity: Not classified as carcinogenic (IARC, NTP, OSHA)
Reproductive Toxicity: No data available, handle as reproductive toxicant as a precaution
Sensitization: May cause allergic skin reaction in some individuals
Chronic Effects: Prolonged exposure could cause dermatitis, headache, drowsiness, kidney or liver damage
Aquatic Toxicity: Harmful to aquatic life (LC50 fish: 15 mg/l/96h), toxic to algae and invertebrates at moderate concentrations
Persistence and Degradability: Not rapidly biodegradable, some potential for bioaccumulation in aquatic systems
Mobility in Soil: Moderately mobile, risk of groundwater contamination if large spillage occurs
Bioaccumulative Potential: Moderate (Log Pow ≈ 2.1), may bioaccumulate in aquatic organisms
Other Adverse Effects: Rapid oxidation may alter oxygen balance in water, do not discharge into drains, soil, or surface water
Waste Treatment Methods: Dispose of according to local, state, and federal regulations, treatment by permitted chemical incineration with afterburner and scrubber
Product Disposal: Neutralize under controlled conditions before disposal, consult chemical waste specialist
Contaminated Packaging: Triple rinse containers, offer packaging for recycling where possible, designate as hazardous waste
Special Precautions: Do not discharge residue into sewers, surface water, or soil, keep away from incompatible materials, report accidental releases to authorities as required
UN Number: UN 3109
Proper Shipping Name: Organic Peroxide Type E, Liquid (Tert-Amyl Hydroperoxide, not more than 88%)
Transport Hazard Classes: 5.2 (Organic Peroxides), Flammable Liquid
Packing Group: II
Labeling: Oxidizer, Flammable Liquid
Environmental Hazards: Marine pollutant
Special Precautions: Emergency Response Guidebook Number 145, keep away from foodstuffs, use temperature control during transport, do not stack pallets
Transport in Bulk: Not recommended
Global Inventories: Listed on US TSCA, EU EINECS, Canadian DSL, Australian AICS
OSHA: Classified as hazardous by OSHA Hazard Communication Standard
SARA Title III Sections 311/312: Acute health hazard, fire hazard, reactive hazard
California Prop 65: This material or its components are not listed as known to cause cancer or reproductive toxicity
REACH Registration: Registered substance under EU REACH regulations
Other Regulations: Subject to reporting under CERCLA, RCRA hazardous waste (U165), Canadian WHMIS Class C, D2B
Labeling Requirements: Keep product label intact, follow all hazard communications in the workplace, ensure availability of MSDS to employees
