LQ-TBPB Tert-butyl peroxybenzoate 614-45-9

ItemContent
Product NameInitiator LQ-TBPB
Chemical NameTert-butyl peroxybenzoate
Molecular FormulaC₁₁H₁₄O₃
Molecular Weight194.2
Theoretical Active Oxygen Content8.24%
CAS No.614-45-9
UN No.3103
ClassificationType C Organic Peroxide Liquid, Class 2 Dangerous Goods Packaging

Major Decomposition Products

Decomposition Product
Tert-butyl alcohol
Benzoic acid
Methane
Acetone
Ethane
Benzene

Safety Indicators

Half-LifeTemperature
0.1 hour142°C
1 hour122°C
10 hours103°C

Thermal Stability Data

Thermal Stability ParameterTemperature
Self-accelerating Decomposition Temperature (SADT)65°C
Critical Temperature (Tem)55°C
Storage Temperature (Tsmax)-15/25°C

Technical Standards

ItemContent
AppearanceLight yellow transparent liquid
Content98% min
Active Oxygen8.07% min
TBHP (Tert-butyl hydroperoxide)1000 mg/kg
Inorganic and Organic Hydrolyzable Chlorides50 mg/kg

Usage

ApplicationDetails
High Pressure Polyethylene (LDPE) PolymerizationExcellent medium-temperature initiator for LDPE, commonly used in tubular or autoclave processes, works well in combination with initiators like LQ-TBPV, OT, TBPD, and others for better polymerization results.
Styrene Suspension PolymerizationOften used in combination with initiator C and benzoyl peroxide (BPO) for styrene or styrene copolymer polymerization.
Acrylate PolymerizationReplaces azo-type initiators to reduce toxicity in resins. Also used in vinyl acetate polymerization.
Unsaturated Polyester CuringIdeal for high-temperature curing of unsaturated polyesters, widely used in fiberglass, coatings, adhesives, and more. Works especially well in compression and pultrusion molding processes.
Rubber VulcanizationEffective vulcanizing agent for most types of rubber (except isobutene rubber).
Fuel Octane ImprovementSignificantly increases the cetane number in fuel when added.

Packaging and Transportation

ItemDetails
Standard Packaging25 kg polyethylene packaging. Custom sizes available upon request.
Transportation RegulationsUN No. 3103, Type C Organic Peroxide Liquid, Class 2 Dangerous Goods Packaging.

Storage Instructions

PrecautionDescription
Storage ConditionsStore in a cool, ventilated space. Temperature should not exceed 30°C.
Separation from HazardsKeep away from fire, heat sources, acids, reducing agents, flammable substances, and combustibles.
Storage FacilitiesUse explosion-proof lighting and ventilation in storage rooms. Switches should be located outside the storage area.
HandlingHandle with care to avoid damage to containers, prevent impact and vibration, and use personal protective equipment.

Fire Protection

Fire ProtectionDescription
Small Fire HandlingUse foam or dry powder extinguishers for small fires.
Large Fire HandlingEvacuate to a safe distance, use water cannon for fire fighting, and immediately notify fire services for further support.

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