| 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. |
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