tert-Butyl Cumyl Peroxide
tert-Butyl Cumyl Peroxide. CAS Number: 3457-61-2. EINECS: 222-389-8.
Product Appearance & Packaging
Product Specifications
| Product Name | tert-Butyl Cumyl Peroxide |
|---|---|
| Chemical Name | tert-Butyl Cumyl Peroxide |
| CAS Number | 3457-61-2 |
| EINECS/ELINCS No. | 222-389-8 |
| Molecular Weight | 208.3 g/mol |
| Active Oxygen Content | 7.68% |
| Appearance | Liquid |
| UN Classification | Organic peroxide type F; liquid, Division 5.2; UN 3109 |
| Packaging | 20 kg |
Industrial Applications
Monofunctional peroxide for crosslinking of natural rubber, synthetic rubbers, and polyolefins. Safe processing temperature: 135°C. Typical crosslinking temperature: 175°C.
Half-Life Data
Half-life (t½) data for tert-Butyl Cumyl Peroxide measured in chlorobenzene:
| Half-Life (t½) | Temperature |
|---|---|
| 0.1 hr | 159°C (318°F) |
| 1 hr | 136°C (277°F) |
| 10 hr | 115°C (239°F) |
Kinetic formulas:
kd = A·e−Ea/RT | t½ = (ln2) / kd
Ea = 146.98 kJ/mole | A = 1.17E+15 s⁻¹ | R = 8.3142 J/mole·K | T = (273.15+°C) K
Thermal Stability
Organic peroxides are thermally unstable substances which may undergo self-accelerating decomposition. The Self Accelerating Decomposition Temperature (SADT) is the lowest temperature at which self-accelerating decomposition may occur.
Recommended Storage
Note: When stored according to these recommended conditions, tert-Butyl Cumyl Peroxide will remain within specifications for a period of at least 3 months after delivery.
Major Decomposition Products
In the event of thermal decomposition, tert-Butyl Cumyl Peroxide produces the following major decomposition products: