Tert-Butyl peroxy benzoate
Tert-Butyl peroxy benzoate. CAS Number: 614-45-9. EINECS: 210-382-2.
Product Appearance & Packaging
Product Specifications
| Product Name | Tert-Butyl peroxy benzoate |
|---|---|
| Chemical Name | Tert-Butyl peroxy benzoate |
| CAS Number | 614-45-9 |
| EINECS/ELINCS No. | 210-382-2 |
| Molecular Weight | 194.2 g/mol |
| Active Oxygen Content | 8.07-8.24% |
| Appearance | Clear liquid |
| UN Classification | Organic peroxide type C; liquid, Division 5.2; UN 3103 |
| Packaging | 25 kg |
Industrial Applications
Used for polymer production, polymer crosslinking, thermoset composites and acrylics production. Initiator for solution polymerization or copolymerization of acrylate and methacrylate in the temperature range of 100-170°C.
Half-Life Data
Half-life (t½) data for Tert-Butyl peroxy benzoate measured in chlorobenzene:
| Half-Life (t½) | Temperature |
|---|---|
| 0.1 hr | 142°C (288°F) |
| 1 hr | 122°C (252°F) |
| 10 hr | 103°C (217°F) |
Kinetic formulas:
kd = A·e−Ea/RT | t½ = (ln2) / kd
Ea = 151.59 kJ/mole | A = 2.23E+16 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 peroxy benzoate 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 peroxy benzoate produces the following major decomposition products: