Butyl 4,4-di(tert-butylperoxy) valerate (VA)
- Chemical Family Organic Peroxide
- Molecular Formula C₁₂H₂₆O₄
- Molecular Weight 334.5
- EINECS 213-626-6
- UN No. 3108
- Transport Hazard Class 5.2
Half-Life Period
- 0.1 hour 143℃
- 1 hour 121℃
- 10 hours 102℃
- Appearance: White powder; can be mixed with inert minerals and adjusted according to customer requirements.
- Purity: 40±1%
- Tert-butyl hydrogen peroxide content: ≤1%
- Theoretical active oxygen content: 9.57%
- Major decomposition products: methane, ethane, acetone, n-butyl propionate, tert-butyl alcohol, carbon dioxide, n-butyl levulinate
- Self-accelerating decomposition temperature (SADT): 55℃
- Hazardous temperature (Tem): 45℃
- Storage temperature (Ts min/Ts max): --/30 ℃
Butyl 4,4-di(tert-butylperoxy) valerate serves as a highly efficient vulcanizing agent, widely recognized for its excellent scorch resistance. At a processing temperature of 125°C, the material demonstrates a rheology time of 20 minutes, and at 160°C, it cures within 12 minutes. It is frequently employed in the cross-linking of EVA and the modification of elastomers, making it a critical component in producing high-performance rubber materials, such as seals and soundproofing components.
-
Packaging
Available in 20 kg corrugated boxes as standard, with customized packaging options to meet specific customer requirements.
-
Validity
When stored under the manufacturer’s recommended conditions, the product retains its quality for up to six months.
-
Storage
Store in well-ventilated areas, ensuring that the temperature does not exceed recommended limits to avoid fire hazards.
Keep away from ignition sources, heat, and static electricity. Ensure proper ventilation and explosion-proof equipment are in place.
Store separately from reducing agents, rust, dust, heavy metal ions, acids, and bases in dedicated facilities.
Handle carefully to prevent impact and friction, which could compromise the product's integrity.
