| Item | Content |
|---|---|
| Product Name | Initiator LQ-TBPV |
| Chemical Name | tert-Butyl peroxypivalate |
| Molecular Formula | C₉H₁₈O₃ |
| Molecular Weight | 174.2 |
| Theoretical Active Oxygen Content | 9.18% |
| CAS No. | 927-07-1 |
| UN No. | 3113 |
| Einecs No. | 213-147-2 |
| Grade | 5.2 |
Physical Properties
| Property | Description |
|---|---|
| Physical Form | Colorless, transparent, oily liquid |
| Solubility | Insoluble in water, soluble in most organic solvents |
| Flash Point | Below -17℃ |
| Viscosity (-10℃) | 2.1 mPa.s |
| Solvent Compatibility | Can be mixed with isododecane or odorless mineral oil (OMS) |
Main Decomposition Products
| Decomposition Products | Substances |
|---|---|
| Major Decomposition Products | tert-Butyl alcohol, isobutone, isobutane, CO₂ |
Safety Indicators
| Half-Life | Temperature |
|---|---|
| 0.1 hour | 94℃ |
| 1 hour | 75℃ |
| 10 hours | 57℃ |
| Thermal Stability Data | Temperature |
|---|---|
| Self-accelerating Decomposition Temperature (SADT) | 20℃ |
| Critical Temperature (Tem) | 10℃ |
| Control Temperature (Tc) | 0℃ |
| Storage Temperature (Tsmax/TSmin) | -17℃ to -5℃ |
Technical Specifications
| Item | Content |
|---|---|
| Appearance | Colorless, transparent liquid |
| Color (APHA) | 20 APHA |
| Content | ≥75.01% |
| TBHP (Tert-Butyl Hydroperoxide) | ≤1000 mg/kg |
| Inorganic & Organic Hydrolyzable Chlorides | ≤150 mg/kg |
Applications
| Application | Description |
|---|---|
| Polymerization Initiator | High-efficiency initiator for high-pressure tubular or batch polymerization of ethylene. |
| PVC Polymerization | Suitable for suspension polymerization of vinyl chloride at 50-70℃. |
| Acrylates and Methacrylates Polymerization | Initiator for acrylates and methacrylates suspension polymerization. |
| Vinyl Acetate (EVA) Polymerization | Important initiator for vinyl acetate (EVA). |
| Unsaturated Polyester Curing | Medium-temperature curing agent for unsaturated polyester, curing at 80-100℃. |
| Oil Quality Improvement | Enhances oil quality when added to oils. |
Storage Precautions
| Precaution | Description |
|---|---|
| Storage Conditions | Store in a cool, ventilated area with temperature not exceeding -15℃. Keep away from acids, reducing agents, flammable materials, and combustibles. |
| Handling Precautions | Avoid repackaging inside the warehouse. Keep away from fire, heat, and ignition sources. |
Product Shelf Life
| Item | Content |
|---|---|
| Shelf Life | Quality guaranteed for three months under proper storage conditions. |
Fire Protection
| Precaution | Description |
|---|---|
| Small Fire Handling | Use foam or dry powder extinguisher. |
| Large Fire Handling | Evacuate to a safe distance and use water jets. Notify the fire department. |
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