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

Item	Content
Product Name	Initiator LQ-TBPB
Chemical Name	Tert-butyl peroxybenzoate
Molecular Formula	C₁₁H₁₄O₃
Molecular Weight	194.2
Theoretical Active Oxygen Content	8.24%
CAS No.	614-45-9
UN No.	3103
Classification	Type 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-Life	Temperature
0.1 hour	142°C
1 hour	122°C
10 hours	103°C

Thermal Stability Data

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

Technical Standards

Item	Content
Appearance	Light yellow transparent liquid
Content	98% min
Active Oxygen	8.07% min
TBHP (Tert-butyl hydroperoxide)	1000 mg/kg
Inorganic and Organic Hydrolyzable Chlorides	50 mg/kg

Usage

Application	Details
High Pressure Polyethylene (LDPE) Polymerization	Excellent 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 Polymerization	Often used in combination with initiator C and benzoyl peroxide (BPO) for styrene or styrene copolymer polymerization.
Acrylate Polymerization	Replaces azo-type initiators to reduce toxicity in resins. Also used in vinyl acetate polymerization.
Unsaturated Polyester Curing	Ideal 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 Vulcanization	Effective vulcanizing agent for most types of rubber (except isobutene rubber).
Fuel Octane Improvement	Significantly increases the cetane number in fuel when added.

Packaging and Transportation

Item	Details
Standard Packaging	25 kg polyethylene packaging. Custom sizes available upon request.
Transportation Regulations	UN No. 3103, Type C Organic Peroxide Liquid, Class 2 Dangerous Goods Packaging.

Storage Instructions

Precaution	Description
Storage Conditions	Store in a cool, ventilated space. Temperature should not exceed 30°C.
Separation from Hazards	Keep away from fire, heat sources, acids, reducing agents, flammable substances, and combustibles.
Storage Facilities	Use explosion-proof lighting and ventilation in storage rooms. Switches should be located outside the storage area.
Handling	Handle with care to avoid damage to containers, prevent impact and vibration, and use personal protective equipment.

Fire Protection

Fire Protection	Description
Small Fire Handling	Use foam or dry powder extinguishers for small fires.
Large Fire Handling	Evacuate to a safe distance, use water cannon for fire fighting, and immediately notify fire services for further support.