Tert-Butyl Hydroperoxide TBHP CAS 75-91-2

Tree Chem manufactures Tert-Butyl Hydroperoxide (TBHP, CAS 75-91-2) for customers looking to purchase high-purity oxidants and polymerization initiators.

Produced under strict control and safety management, our TBHP is characterized by excellent thermal stability, controlled decomposition rate, and reliable reactivity across different reaction systems. This product is widely used in organic synthesis, epoxy resin curing, and fine chemical oxidation. Its balanced active oxygen level ensures consistent performance and compatibility with diverse industrial applications. Tree Chem supplies TBHP in 20 kg, 25 kg, and 170 kg PE drums, or as per customer packaging requirements.

For product details and inquiries, please contact info@cntreechem.com.

Specification

Basic Information

Technical Specification

Tree Chem Tert-Butyl Hydroperoxide (TBHP) has been certified and listed by multiple international chemical regulatory bodies, underscoring its compliance with global standards and consistent product quality.

This product is officially registered or acknowledged under the following chemical inventories: Australia (AICS), Canada (DSL), European Union (EINECS), China (IECSC), Japan (ENCS), New Zealand (NZIoC), Korea (ECL), United States (TSCA), and the Philippines (PICCS).

These international recognitions confirm that Tree Chem Tert-Butyl Hydroperoxide (TBHP) fully meets global safety, environmental, and industrial regulatory requirements, ensuring reliability and worldwide acceptance across multiple application sectors.

Applications

Polymerization Initiator

• Tert-Butyl Hydroperoxide (TBHP) is one of the most important organic peroxide initiators used in polymerization processes. It decomposes to form free radicals under controlled temperature conditions, enabling efficient initiation of chain polymerization in ethylene, propylene, styrene, vinyl chloride, and acrylate monomers.
• In polyethylene (PE) and polypropylene (PP) production, TBHP provides high conversion rates, narrow molecular weight distribution, and excellent control over polymer structure. Its thermal stability below 50°C and consistent reactivity at 80–120°C make it ideal for suspension and emulsion polymerization.
• In PVC, PS, ABS, and acrylic polymer systems, TBHP offers high initiation efficiency and low impurity residue, outperforming conventional initiators such as persulfates and benzoyl peroxide. This property ensures product clarity, smooth processing, and superior mechanical performance.

Epoxidation and Fine Chemical Synthesis

• TBHP is a key oxidizing agent in epoxidation reactions, particularly in the Halcon (PO/TBA) process, where it reacts with propylene to produce propylene oxide (PO). Under molybdenum-based catalysis, the TBHP-propylene reaction achieves conversion rates of up to 98.4% and selectivity above 98%, producing high-purity PO with minimal byproducts.
• It is also used in the Sharpless asymmetric epoxidation and Baeyer–Villiger oxidation reactions to synthesize chiral epoxides and lactones. TBHP’s controlled oxygen release and solubility in organic solvents make it indispensable in pharmaceutical and fragrance intermediate synthesis. Examples include the oxidation of α-isophorone to isophorone oxide and oxidation of alcohols and alkenes in fine chemical production.

Wastewater Treatment and Environmental Applications

• In wastewater treatment, TBHP acts as a chemical oxidant in advanced oxidation processes (AOPs). It efficiently degrades persistent organic pollutants such as phenols, cyanides, and sulfur-containing compounds.
• TBHP is particularly effective in catalytic wet air oxidation and Fenton-type systems, improving the biodegradability of industrial wastewater. It is widely applied in organic peroxide plant effluent treatment, where it removes residual TBHP, tert-butanol, and other organic contaminants, ensuring compliance with strict discharge standards.
• The combination of TBHP with catalysts like Fe²⁺ or Mo⁶⁺ accelerates oxidation, promoting green chemistry and sustainable pollution control.

Rubber, Coatings, and Curing Systems

• In the rubber and elastomer industry, TBHP serves as a crosslinking and curing agent for silicone rubber, EPDM, and nitrile rubber. It provides high tensile strength, elasticity, and thermal resistance. Compared to dicumyl peroxide, TBHP allows lower vulcanization temperatures and faster curing cycles while producing odorless, non-corrosive byproducts.
• In coatings and composites, TBHP functions as a thermal initiator for unsaturated polyester resin (UPR) and vinyl ester systems, supporting molding processes such as SMC and BMC. It enhances adhesion, surface hardness, and curing efficiency in both solvent-based and low-VOC formulations.
• Additionally, in textile finishing and printing inks, TBHP acts as an oxidative crosslinking agent, improving color fastness and resistance to wear.

Electronic Chemicals and Semiconductor Manufacturing

• High-purity TBHP (≥99.99%) has become critical in semiconductor fabrication and electronic chemical processing. It is widely used for wafer cleaning, photoresist stripping, and copper interconnect cleaning during advanced node manufacturing.
• TBHP’s high oxidative selectivity enables removal of organic residues without damaging sensitive low-k dielectric materials. It ensures ultra-low metal ion contamination (<50 ppb), meeting semiconductor-grade purity standards.
• Demand in this sector is rapidly expanding, driven by the growth of the integrated circuit (IC), LED, and photovoltaic industries.

New Energy and Emerging Applications

• In the new energy field, TBHP is essential for producing ultra-high molecular weight polyethylene (UHMWPE) used in lithium battery separators. It improves polymer uniformity and mechanical performance, ensuring high thermal stability in separator membranes.
• In the photovoltaic sector, TBHP supports EVA and POE encapsulant crosslinking, ensuring long-term transparency and durability of solar modules.
• It is also used in biomedical synthesis as an oxidant for active pharmaceutical ingredients (APIs) and biodegradable polymer precursors.
• As industries transition to green and high-tech materials, TBHP’s balance of oxidative strength, safety, and controllable decomposition makes it indispensable across advanced manufacturing fields.

Storage & Handling

• Store in a cool, dry, and well-ventilated place, away from sunlight and heat.
• Keep containers tightly closed to prevent moisture or contamination.
• Avoid contact with acids, alkalis, reducing agents, and heavy metals.
• Use grounded and explosion-proof equipment when transferring.
• Recommended storage temperature: below 30 °C.

Usage Notice

• Avoid impact, friction, or direct exposure to sunlight.
• Do not mix with accelerators or incompatible substances.
• Wear chemical-resistant gloves and goggles during handling.
• In case of leakage, absorb with inert materials and rinse with plenty of water.
• Dispose according to local hazardous waste regulations.
• Ethylene polymerization system: TBHP 1%, ethylene 99%; initiates polymerization reaction under 120 °C, ensuring controlled chain growth.
• Propylene oxidation process: TBHP 1 mol, propylene 1 mol, Mo catalyst 0.01 mol; generates propylene oxide with 98% selectivity.
• Acrylic emulsion polymerization: TBHP 0.5%, acrylate monomers 99.5%; initiates polymerization at 70–80 °C with stable particle formation.
• Silicone rubber curing formulation: TBHP 0.3–0.5%, silicone base 99.5%; accelerates crosslinking to improve elasticity and thermal resistance.
• EPDM vulcanization system: TBHP 1%, EPDM 99%; provides fast curing and enhanced weatherability.
• Advanced oxidation wastewater treatment: TBHP 1 g/L, Fe²⁺ 0.1 g/L; oxidizes phenolic compounds and improves biodegradability.
• Wafer cleaning formulation: TBHP 0.2%, DI water 99.8%; removes organic contaminants and residues during semiconductor processing.
• Lithium battery separator polymerization: TBHP 0.8%, polyethylene precursor 99.2%; enables uniform chain structure and high mechanical stability.

Packaging

• 20 kg PE drum
• 25 kg PE drum
• 170 kg PE drum
• Custom packaging available upon request