Di-tert-butyl peroxide

• DTBP
• Bis ( 1,1- dimethylethyl ) peroxide
• Di-tertiary butyl peroxide

Highly flammable, volatile, colorless to yellowish liquid with ethereal odor

Liquid

0.79 g · cm -3

-40 ° C

80 ° C ( decomposition)

35 mbar (20 ° C)

Practically insoluble in water ( 43-63 mg · l-1 at 20 ° C)

1.3891 (20 ° C)

Risk

> 25000 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Di -tert- butyl peroxide is a chemical compound selected from the group of organic peroxides.

Production and representation

Di -tert-butyl can be obtained by reaction of tert-butyl hydroperoxide with tertiary butyl alcohol.

Properties

Di -tert -butyl peroxide is a flammable, volatile, colorless to yellowish liquid with ethereal odor. When heated above 80 ° C, the compound decomposes. Initially created tert- Butoxyradikale, which can further react to acetone and methyl radicals. If this decomposition in a solution, they react the resulting methyl and tert- Butoxyradikale with the solvent, while this usually a hydrogen atom escape (so-called free-radical hydrogen abstraction). The resulting solvent radicals can recombine, which can be generated corresponding substituted compounds ( for example, tertiary amines, substituted ethylene diamines, from primary and secondary alcohols, 1,2- glycols ).

Use

Di -tert- butyl peroxide is used as initiator for the polymerization of olefins, and as a crosslinking agent for silicone rubber.

Safety

The vapors of di -tert -butyl peroxide can combine with air to form an explosive mixture (flash point 4 ° C).