PPT-1.3 AROMATIC HYDROCARBONS

MICHAEL FARADAY 17911867 first person to isolate and identify benzene early benzene uses decaffeinate coffee antiknock additive in gasoline solvent in chem rxns now we know benzene is a carcinogen. PAHs are found naturally in the environment but they can also be manmade In their purest form PAHs are solid and range in appearance from colorless to white or pale yellow green PAHs are created when products like coal oil gas and garbage are burned 3 brPage 2br Organic Compounds Hydrocarbons Hydrocarbon Derivatives Aliphatic Aromatic Saturated Unsaturated Alkanes Alkenes Alkynes More about these in the next few days HINT alkyl halides and alcohols are examples THIS is our topic , and polycyclic aromatic hydrocarbons (PAHs) are substances that are on the Biological Nutrients Banned List but not the Technical Nutrients Banned List. While these substances can be used in some ma Orbitals. Natural gas?. Fig. 11.1. Aliphatic Hydrocarbon Structure Comparison. Bonding and Geometry. of Two-Carbon Molecules . 11.1 Structure and Physical. . Properties. Bitter almonds are the source of the aromatic compound benzaldehyde. Sources of Benzene. Some Facts About Benzene. Reacts mainly by substitution. Friedrich August Kekule’. The Orbital Model for Benzene. Finding a measurable amount of one or more PAH metabolites in the urine does not mean that the levels of one or more PAH metabolites or PAHs cause an adverse health effectBiomonitoring studies on leve 15-5. Molecules containing several fused benzene rings are called . polycyclic benzenoid. or . polycyclic aromatic hydrocarbons. (. PAHs. ).. Common names are used for these systems, since there is no simple naming system for them.. 16-6. Naphthalene is activated toward electrophilic substitution.. Naphthalene undergoes electrophilic substitution rather than addition.. Naphthalene is activated with respect to electrophilic aromatic substitution. Bromination at C1 occurs without a catalyst under mild conditions.. Lecture 12. Organic chemistry. What distinguishes organic chemistry from other areas of chemistry?. Origins – compounds from plants and animals. Organic compounds were though to have a “v. ital force” and as such . Chemistry 122/121. Cyclic Hydrocarbons. Both saturated and unsaturated hydrocarbons may be found in the form of a ring. The resulting structure has two less hydrogen than its straight chain counterpart. 22.1 Hydrocarbons. Organic Chemistry. includes almost all carbon compounds. Not limited to compounds found in living cells. Hydrocarbon: organic compound made of only hydrogen and carbon atoms. hydrocarbons. Abstract able to determine aromatic hydrocarbons under normal phase conditions with RI detection, in compliance with the ASTM D7419 method. Determination of Total Aromatic Hydrocarbons and Total Sat Physikzentrum Bad Honnef Hauptstr53604 Bad HonnefOrganizationProf Dr Arne LtzenKekul Institute of Organic ChemistryUniversity of Bonn Tel 49 228 737533Email arneltzenunibonndeProf Dr Sigurd HgerProgra Bold entries indicate new or changed listings in the Fifteenth Report on Carcinogens. Known To Be Human Carcinogens Aatoxins Alcoholic Beverage Consumption 4-Aminobiphenyl Aristolochic Acids Ars