Butyl 4,4-di(tert-butylperoxy) valerate

Butyl 4,4-di(tert-butylperoxy) valerate. CAS Number: 995-33-5. EINECS: 213-626-6.

Main Applications
Curing & Crosslinking

Product Appearance & Packaging

Product Specifications

Product NameButyl 4,4-di(tert-butylperoxy) valerate
Chemical NameButyl 4,4-di(tert-butylperoxy) valerate
CAS Number995-33-5
EINECS/ELINCS No.213-626-6
Molecular Weight334.5 g/mol
Active Oxygen Content9.57%
AppearanceLiquid
UN ClassificationOrganic peroxide type C; liquid, Division 5.2; UN 3103
Packaging20 kg
Organic peroxide type C; liquid, Division 5.2; UN 3103

Industrial Applications

Bifunctional peroxide for crosslinking of natural rubber, synthetic rubbers, and polyolefins. Safe processing temperature: 125°C. Typical crosslinking temperature: 160°C.

Half-Life Data

Half-life (t½) data for Butyl 4,4-di(tert-butylperoxy) valerate measured in chlorobenzene:

Data not available in source document.

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.

60°C
SADT

Recommended Storage

30°C
Maximum Storage Temp (Ts Max.)
3 months
Shelf Life

Note: When stored according to these recommended conditions, Butyl 4,4-di(tert-butylperoxy) valerate will remain within specifications for a period of at least 3 months after delivery.

Major Decomposition Products

In the event of thermal decomposition, Butyl 4,4-di(tert-butylperoxy) valerate produces the following major decomposition products:

MethaneCarbon dioxideAcetonetert-Butanol