Di-tert-butyl peroxide
Di-tert-butyl peroxide. CAS Number: 110-05-4. EINECS: 203-733-6.
Product Appearance & Packaging
Product Specifications
| Product Name | Di-tert-butyl peroxide |
|---|---|
| Chemical Name | Di-tert-butyl peroxide |
| CAS Number | 110-05-4 |
| EINECS/ELINCS No. | 203-733-6 |
| Molecular Weight | 146.2 g/mol |
| Active Oxygen Content | 10.94% |
| Appearance | Clear liquid |
| UN Classification | Organic peroxide type E; liquid, Division 5.2; UN 3107 |
| Packaging | 20 kg |
Industrial Applications
Used for polymer production, polymer crosslinking and acrylics production. Initiator for solution polymerization or copolymerization of acrylate and methacrylate in the temperature range of 130-175°C.
Half-Life Data
Half-life (t½) data for Di-tert-butyl peroxide measured in chlorobenzene:
| Half-Life (t½) | Temperature |
|---|---|
| 0.1 hr | 164°C (327°F) |
| 1 hr | 141°C (286°F) |
| 10 hr | 121°C (250°F) |
Kinetic formulas:
kd = A·e−Ea/RT | t½ = (ln2) / kd
Ea = 153.46 kJ/mole | A = 4.20E+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, Di-tert-butyl peroxide will remain within specifications for a period of at least 6 months after delivery.
Major Decomposition Products
In the event of thermal decomposition, Di-tert-butyl peroxide produces the following major decomposition products: