| Property |
Value |
| Chemical Formula |
C8H18O2 |
| Molecular Weight |
Approximately 146.23 g/mol |
| CAS Number |
110-05-4 |
| Appearance |
Colorless to pale yellow liquid |
| Density |
Approximately 0.79 g/cm3 at 20 °C |
| Boiling Point |
Approximately 111 °C |
| Flash Point |
Approximately 18 °C (Closed Cup) |
| UN Number |
3109 (Organic Peroxide Type F, Liquid) |
| Primary Hazard Class |
5.2 (Organic Peroxide) |
Usage:
Di-tert-butyl Peroxide primarily serves as a high-temperature free-radical initiator. Its main applications include:
- Polymerization: Initiating the polymerization of monomers like ethylene (in LDPE production), styrene, vinyl acetate, and acrylates, especially in processes requiring higher temperatures.
- Cross-linking: Acting as a cross-linking agent for elastomers such as silicone rubber, EPDM, and polyethylene, enhancing their thermal stability and mechanical properties.
- Polymer Modification: Used in the controlled rheology (vis-breaking) of polypropylene.
- Chemical Synthesis: Employed as a reagent or initiator in various organic synthesis reactions.
Packaging and Transportation:
Di-tert-butyl Peroxide is classified as a hazardous material (Organic Peroxide Type F). It is supplied in UN-approved packaging designed to ensure safety during transport and handling. Transportation adheres strictly to international and national regulations for hazardous goods, often requiring specific labeling and potentially temperature control depending on the formulation and quantity.
Storage:
Store Di-tert-butyl Peroxide in a cool, dry, well-ventilated area away from direct sunlight, heat sources (sparks, open flames), and incompatible substances such as strong acids, bases, reducing agents, and heavy metal compounds. Maintain storage temperatures according to safety data sheet (SDS) recommendations, often requiring refrigeration or controlled temperature conditions to prevent decomposition. Ensure containers are kept tightly sealed and properly labeled. Follow all local regulations regarding the storage of organic peroxides.
