Curing agent double two five

　　Chemical name: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane

　　Molecular formula C16H34N3O4

　　Molecular weight: 290.45

　　Appearance (visual inspection): light yellow transparent liquid

　　content,% 92-95

　　chromaticity, Hazen, ≥ 90

　　Iron, %, ≤ 0.0003

　　Nature: Light yellow oily liquid with special smell. The decomposition temperature is 140-150℃, easily soluble in alcohol, ester, ether, hydrocarbon organic solvents, insoluble in water, and low in volatility.

　　Half-life data: activation energy-36.0 kcal/mole; 1 minute half-life temperature-179℃; 1 hour half-life temperature-138℃;

　　10 hours half-life temperature-118 ℃; 100 hours half-life temperature-99 ℃;.

　　Safety data: flash point—closed/36℃, open/58℃; self-accelerating decomposition temperature (SADT)--80℃; alarm temperature (Tem)--75℃; UN number: 3105; CN number: 52005

　　Physical and chemical properties: liquid, specific gravity 0.87, refractive index 1.415; melting point 8℃; theoretical active oxygen content 11.02%.

　　Uses: This product does not have the shortcomings that di-tert-butyl peroxide is easy to gasify and dicumyl peroxide produces odor. The tensile strength and hardness of the product are high, and the tensile and compression deformation are relatively low. High temperature dialkyl organic peroxides. Used for crosslinking of high polymers (such as silicone rubber, EPDM, polyethylene, etc.) (crosslinking temperature ≥1700C, reference dosage is between 0.3%); used as free radical for polypropylene degradation Donor (temperature 200-2200C, reference dosage 0.01-0.1%).

　　Packaging and storage: 25 kg/drum, this product is toxic, it is a flammable and explosive first-class dangerous product, should be stored in a cold and dark place and avoid contact with heavy metal soaps, amines and decomposable accelerators.