"Benzene" Essays and Research Papers

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    formula would be C8H11N with a HDI of 4. Looking at the IR spectroscopy‚ there is a sharp peak at around 3000 cm-1‚ which indicates C-H bonds. At around 1600 cm-1‚ we see a peak which tells us there are C=C that might corresponds to an aromatic benzene ring‚ which I proved using the NMR. The Nitrogen is also present on the IR spectroscopy leaving its mark with a peak at around 3200 – 3500 cm-1. Lastly‚ I finalized my structure using the NMR spectroscopy. With the information I have collected and

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    Property (Condition‚ Method) Synonyms Name Ethylbenzene; benzene; ethylbenzol; phenylethane; etilbenzene; ethylbenzeen; aethylbenzo; ethylobenzen Chemical Formula C8H10 Chemical Structure Table 1.1: The table of chemical properties of Ethylbenzene. Table 1.2 The table of the physical properties of Ethylbenzene. Chemical and Physical Properties of Styrene Property (Condition‚ method) Common Synonym Vinyl Benzene; phenylethene; ethenyl Benzene; cinnamene Molecular Formula C8H8 Chemical Structure C6H5CH=CH2

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    Friedel-Crafts Reactions

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    group into something - in this case‚ into a benzene ring. The most commonly used acyl group is CH3CO-. This is called the ethanoyl group. In the example which follows we are substituting a CH3CO- group into the ring‚ but you could equally well use any other alkyl group instead of the CH3. The facts The most reactive substance containing an acyl group is an acyl chloride (also known as an acid chloride). These have the general formula RCOCl. Benzene is treated with a mixture of ethanoyl chloride

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    ABSTRACT: The electrophilic aromatic substitution reaction is the attack of a benzene ring on an electrophilic species resulting in the substitution of a proton with a functional group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product‚ methyl

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    UOP LAB Complex

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    UOP Linear Alkylbenzene (LAB) Complex Petrochemical Petrochemical Introduction Linear alkylbenzene (LAB) is the most common raw material in the manufacture of biodegradable household detergents. LAB is produced using normal paraffins as a raw material. Normal paraffins are derived from straight run kerosene. UOP offers processes‚ catalysts‚ adsorbents and equipment for the production of LAB from kerosene or normal paraffins. The processes can be utilized in combination in a new complex

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    Dangerous Fumes Report

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    used as fuel in combustion engines. It is made of over 250 types of hydrocarbons. Aromatic hydrocarbons like toluene and benzene are used to increase the octane rating of gasoline. Other additives are also added to improve engine performance and reduce the emission of harmful gasses formed as byproducts of the combustion process. Some hydrocarbons found in gasoline like benzene are carcinogenic. These hydrocarbons escape into the air around us while we are refilling petrol at a gas station. They

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    Lab 6: Electrophilic Aromatic Substitution(1) Nitration of Methyl Benzoate(2) Synthesis of 1‚4-Di-t-butyl-2‚5-dimethoxybenzene byFriedel-Crafts Alkylation of 1‚4-DimethoxybenzenePurpose1)To carry out the nitration of methyl benzoate‚ and then identify the major product formed (position at which nitro-group substitution takes place) by thin-layer chromatography (TLC)‚ the percent yield and the melting point range. 2)To synthesize 1‚4-Di-t-butyl-2‚5-dimethoxybenzene by Friedel-Crafts Alkylation of

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    Engineering Chemistry III Prof. K. M. Muraleedharan Aromatic electrophilic substitution (Ar-SE) Reactions The special reactivity of aromatic systems towards electrophiles arises mainly from two factors: the presence of π electron density above and below the plane of the ring - making it nucleophilic‚ and the drive to regain the aromatic character by opting for substitution as opposed to a simple addition reaction. Preference towards addition reactions in the case of alkenes and substitution

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    phenols

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    Phenols You can prepare phenols in large quantities by the pyrolysis of the sodium salt of benzene sulfonic acid‚ by the Dow process‚ and by the air oxidation of cumene. Each of these processes is described below. You can also prepare small amounts of phenol by the peroxide oxidation of phenylboronic acid and the hydrolysis of diazonium salts. Pyrolysis of sodium benzene sulfonate In this process‚ benzene sulfonic acid is reacted with aqueous sodium hydroxide. The resulting salt is mixed with solid

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    Hydrocarbons

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    Analysis of Hydrocarbons Jovellanos‚ Bien Jindrich Johannes; Lacson‚ Danise Angelica; *Lagula‚ Nina Francesca; Lañez‚ Kristine Department of Psychology College of Science University of Santo Tomas España Manila 1015 Abstract A hydrocarbon is strictly composed of carbon and hydrogen atoms only. Five hydrocarbons were used namely hexane‚ cyclohexene‚ toluene‚ naphthalene (in hexane)‚ and the unknown (which will be known through parallel chemical tests). Three tests‚ nitration test‚ bromine

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