4-Винил-1-циклогексен

Химические свойства

4-Vinyl-1-cyclohexene, a cyclic alkene, is a highly flammable liquid.

Использование

Polymers, organic synthesis.

Методы производства

4-Vinylcyclohexene is produced by dimerization of butadiene, as a by-product of chlorination of butadiene, or frombutadiene on long storage.

Общее описание

Colorless liquid. Floats on water. Temperatures above 80F (26.6C) and prolonged exposure to oxygen-containing gases should be avoided because these conditions lead to discoloration and gum formation.

Реакции воздуха и воды

Highly flammable. 4-Vinyl-1-cyclohexene oxidizes in air to form hydroperoxides. Slightly soluble in water.

Профиль реактивности

4-Vinyl-1-cyclohexene can react with oxidizing materials. 4-Vinyl-1-cyclohexene is also incompatible with peroxide catalysts. Prolonged exposure to oxygen-containing gases leads to discoloration and gum formation. .

Угроза здоровью

Exposure can cause irritation of eyes, nose and throat. High concentrations have a narcotic effect.

Профиль безопасности

Confirmed carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Moderately toxic by ingestion and inhalation. MilcU~7 toxic by skin contact. Experimental reproductive effects. Dangerous fire hazard when exposed to heat, flame, or oxidizers. Can react with oxidizers. To fight fire, use foam, CO2, dry chemical.

Возможный контакт

4-Vinyl-1-cyclohexene is used as an intermediate for the production of vinylcyclohexene dioxide, which is used as a reactive diluent in epoxy resins. Previous uses of 4-vinyl-1-cyclohexene include comonomer in the polymerization of other monomers and for halogenation to polyhalogenated derivatives which are used as flame retardants.

Канцерогенность

A dose of 145 g/kg applied to mouse skin for 54 weeks provided weak evidence of carcinogenicity (109). Administration by gavage of doses of 0, 200, or 400 mg/kg body weight, 5 days per week, to groups of 50 F344/N rats for 103 weeks induced a slightly increased incidence of epithelial hyperplasia of the forestomach (1/50; 3/50; 5/47) and squamous cell papillomas or carcinomas (combined) of the skin, in males receiving the highest dose. Low-dose female rats whose survival was more similar to that of the vehicle controls had a marginally increased incidence of adenomas or squamous cell carcinomas (combined) of the clitoral gland. Under these conditions, the 2-year gavage studies in male and female rats were considered inadequate because of extensive and early mortality at the high dose or at body doses and the lack of conclusive evidence of a carcinogenic effect (125a). In female Fisher 344 rats treated with this agent to induce ovarian failure followed by application of the carcinogen dimethylbenzanthracene (DMBA) directly to the ovaries, there resulted tumors in 42% of animals at 3 months and 57% at 5 months (126b). All neoplasms were classified Sertoli–Leydig cell tumors (SLCT). No tumors occurred in animals treated with vehicle or DMBA alone.

Перевозки

UN1993 Flammable liquids, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, Technical Name Required.

Несовместимости

Vapor may form explosive mixture with air. Hydrolyzes in water. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, amines, alcohols.

Утилизация отходов

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.