PPT-WORKING SAFELY WITH BENZENE

Environmental Health Safety and Risk Management University of Alaska Fairbanks August 2011 1 Overview Properties and Sources of Benzene Exposure Limits Routes of Exposure and Health Effects Protecting Yourself. Aromaticity. TNT. 8-methyl-N-vanillyl-6-nonenamide (. Capsaicin). Buckminsterfullerene. Key points & objectives:. Aromatic molecules are cyclic, conjugated, flat, and unusually stable. 4n + 2 electrons (. M.ARULSELVAN. Syllabus. Benzene and Aromaticity. 4.1 Concept of aromaticity:. . . -Huckel's rule for aromaticity, . -identification of aromatic, . -Non-aromatic and anti aromatic systems based on planarity, conjugation and Huckel's rule.. Arenes are . aromatic hydrocarbons . containing 1 or more benzene rings. . A benzene ring is a ring of . 6 carbon atoms. , each of which is also bonded to a hydrogen atom, with molecular formula . C. By Taylor Hatchett. What is Benzene?. Chemical. C. olorless or light yellow. L. iquid at room temperature. Has a sweet odor . H. ighly flammable. E. vaporates quickly into air. What is Benzene?. Vapor is heavier than air. 15-4. The UV-visible spectrum of benzene reveals its electronic structure.. The energy gap between bonding and antibonding orbitals is greater in benzene than for acyclic trienes.. The UV spectra of benzene shows absorbances at smaller wavelengths (higher energy) than does the spectra of 1,3,5-hexatriene:. SAFETY SERVICES. MAY. . 2009. Employers are responsible for. The health, safety and welfare at work for their employees and those affected by the work. Assess risks to lone workers. Take steps to avoid or control risk where necessary. Why is working safely. important? . How do you work safely?. Follow safety instructions. Wash your hands. Wear . PPP. YOU MUST,. Why is working safely important?. Simply put,. PEOPLE DON’T GET HURT!. Why is working safely. important? . How do you work safely?. Follow safety instructions. Wash your hands. Wear . PPP. YOU MUST,. Why is working safely important?. Simply put,. PEOPLE DON’T GET HURT!. Benzene. Colorless liquid with sweet scent often produced from petroleum . Flammable (flashpoint below 37.8 °C). Carcinogenic, reproductive toxin . Toxic, skin irritation and burns. Extremely toxic to aquatic life. with the molecular formula . C. 6. H. 6. . benzene is a . colorless. and . highly flammable . liquid with a . sweet smell . and a relatively . high melting point. .. What is Benzene ?. Molecular orbital structure of benzene. AROMATIC HYDROCARBONS-. -------Benzene. Synonyms. Benzol. , . Benzole. , . Benzolene. , Coal naphtha, Phenyl hydride, . Annulene. , Carbon oil, . Cyclohexatriene. , Mineral naphtha,. Motor benzol, Phene, Pyrobenzol, Pyrobenzole.. Objective. To know about . electrophilic. substitution reactions. Success criteria. Understand . the mechanism of the . electrophilic. substitution reactions of . benzene. Understand this for . halogenation. Learning Outcome 5: WORKING SAFELY AROUND PLANT AND EQUIPMENT. This learning outcome:. l. ists ways in which moving machinery can cause injuries. s. tates hazards of working with plant and equipment. D. r. . Zamir G Khan . Assistant Professor . H R Patel Institute of Pharmaceutical Education and Research Shirpur, Dist. Dhule, (M.S) 425405. 26-02-2024. 2. 26-02-2024. 3. Methods for preparation . of benzene.