| Item | Content |
|---|---|
| Product Name | Initiator LQ-TAPA |
| Chemical Name | Tert-amyl peroxyacetate |
| Molecular Formula | C₇H₁₄O₃ |
| Molecular Weight | 146.20 |
| Theoretical Active Oxygen Content | 10.94% |
| CAS No. | 690-83-5 |
| UN No. | 3107 |
Properties
| Property | Description |
|---|---|
| Appearance | Colorless, transparent liquid |
| Solubility | Insoluble in water, soluble in most organic solvents |
| Density (20°C) | 0.923 g/cm³ |
| Refractive Index (20°C) | 1.035 |
| Decomposition Temperature | 159°C |
| Major Decomposition Products | Tert-butanol, acetic acid, di-tert-butyl ether, methane, ethane |
Safety Indicators
| Half-Life | Temperature |
|---|---|
| 0.1 hour | 134°C |
| 1 hour | 114°C |
| 10 hours | 96°C |
| Thermal Stability Data | Temperature |
|---|---|
| Self-accelerating Decomposition Temperature (SADT) | 60°C |
| Critical Temperature (Tem) | -- |
| Control Temperature (Tc) | -- |
| Storage Temperature (Tsmax) | --/30°C |
| Activation Energy (E) | 152.16 KJ/mol |
Applications
| Application | Description |
|---|---|
| Polymerization Initiator (LDPE) | Excellent low-temperature initiator for LDPE, especially in tubular processes. Can be combined with other initiators like LQ-TBPV, LQ-TBPEH, or LQ-TBPB for enhanced polymerization. |
| Curing Agent for Thermoset Resins | Used as a high-temperature curing agent for unsaturated polyesters. |
| Polymerization Initiator (Styrene and Acrylates) | Initiator for the polymerization of styrene or styrene copolymers, as well as methyl methacrylate and vinyl acetate. |
Packaging and Transport
| Packaging | Description |
|---|---|
| Standard Packaging | Typically packaged in 20 kg polyethylene containers. Custom packaging available upon request. |
| Transport | Follows transportation regulations for organic peroxides (Class 5.2, UN 3107). |
Storage Instructions
| Precaution | Description |
|---|---|
| Storage Conditions | Store in a cool, ventilated area with a maximum temperature of 30°C. Keep away from acids, reducing agents, flammable materials, and other reactive substances. |
| Storage Facilities | Ensure proper ventilation, and use explosion-proof lighting and switches outdoors. |
| Handling Precautions | Handle carefully to avoid container damage. Prevent impact and vibration. Personal protective equipment should be used during repacking and handling. |
Fire Protection
| Precaution | Description |
|---|---|
| Small Fire Handling | For small fires, use foam or dry powder extinguishers immediately, followed by large amounts of water to prevent re-ignition. |
| Large Fire Handling | In case of large fires, evacuate to a safe distance and use water hoses for firefighting. Notify fire services for assistance. |
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