DBPH 2,5-Dimethyl-2,5-Di(Tert-butyl peroxide)hexane CAS no.78-63-7 vulcanizator for silicone rubber
Chemical name 2,5-Dimethyl-2,5-Di(Tert-butyl peroxide)hexane
Molecular formula C16H34O4
Molecular weight 290.44
CAS NO. 78-63-7
UN NO. 3105
CN NO. 52005
EINECS. 201-128-1
Brief Introduction：
DBPH is a low volatility, yellowish liquid , dialkyl peroxide for cross linking of elastomers (silicone rubber, EPDM, PE etc.).
Mp 8 ℃, relative density 0.8650, refractive index 1.4185 (28 ℃), flash point: closed / 36 ℃, open / 58 ℃, 80 self-accelerating decomposition temperature ℃. not soluble in water, soluble in alcohols, esters, ethers, hydrocarbons and organic solvents, has a special smell. Active oxygen Content 11.02%.
Half life Data:
Activation Energy……36.0kcal/mole
10hr,Half Life Temp. ………………118℃
1hr,Half Life Temp. …………………138℃
1min,Half Life Temp ………………177℃

Specification：

Test Item Limit
Assay Min.93%
Color Max.90Hazen
Fe Max.0.0003%

Application Condition：
As Cross linking Agent, the temperature over 90 degrees Celsius, the amount of 1.2-2.5% (depending on different types of elastomers required).

Package and Storage：
20kg or 25kg, net, PE drum.
10～30℃ stored under shadow, good air circulation. Transportation, exposure and strenuous exercise should be avoided. Refrain from heat and acid, reducing agent such as during storage or shipment.