purpose was to determine whether Salicylic Acid made from methyl salicylate is the same as Salicylic Acid made from benzene. This information can be found by comparing the difference in melting points of the two samples of Salicylic Acid. Here are the physical properties of Salicylic Acid and the mechanism of reactions that occurred in this lab. How Salicylic Acid is derived: Procedure/Results First‚ .26mL of 2.0mmol methyl Salicylate was measured and put into a reaction vial along
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in aspirin‚ was extracted naturally from methyl salicylate found in Wintergreen oil‚ which could be found in certain plants. The purpose of this lab experiment is to prepare salicylic acid from the natural starting material‚ methyl salicylate‚ and compare it with the salicylic acid produced from the artificial compound benzene (obtained through petroleum refining). Based on the two reactions of aspirin synthesis shown below‚ methyl salicylate and benzene share a common intermediate which is salicylic
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the pure components. By contrast‚ if a mixture of benzene and water (Immiscible liquids) is distilled‚ the boiling point of the mixture will be found below the boiling point of each pure component. Since the two liquids are essentially insoluble in each other‚ the benzene molecules in a droplet of benzene are not diluted by water molecules from nearby water droplets‚ and hence the vapor pressure exerted by the benzene is the same as that of benzene alone at the existing temperature. The same is
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compounds of carbon and hydrogen which contain at least one hexagonal ring of carbon called as benzene in their molecule. Aromatic hydrocarbon can contain one or more than one benzene ring. Those compounds which contain more than one benzene ring are known as polynuclear aromatic hydrocarbon like naphthalene‚ anthracene etc. The aromatic compounds are generally taken as derivatives of benzene. Benzene and its derivatives are mainly used in synthetic organic chemistry. The main source of polynuclear
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from methyl salicylate utilizing previously used procedure from the nineteenth century. The final product will then be evaluated in comparison to salicylic acid made from benzene. Discussion – In this synthesis‚ methyl salicylate is the starting material or precursor and salicylic acid is the target product. It is the major constituent of wintergreen oil. The difference in structures between methyl salicylate and salicylic acid is a single functional group. In methyl salicylate the benzene ring
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respectively. The GC-MS study revealed the presence of ten compounds in n-hexane extract namely Hexadecane(1)‚ 2-[4a‚ 8-Dimethyl-3‚4‚4a‚5‚6-hexahydro-napthalene-2-yl]-prop-2-en-1-ol(2)‚ Heptadecane(3)‚ Benzene‚ [1-butylheptyl]-(4)‚ Benzene‚ [1-methyldecyl]-(5)‚ Oxirane‚ tetradecyl-(6)‚ Hexadecanoic acid‚ methyl ester(7)‚ Hexadecanoic acid‚ ethyl ester(8)‚ 9‚12‚15- Octadecatrienoic acid‚ ethyl ester‚ [Z‚Z‚Z]-(9)‚ Lupeol (11) . The ethanolic extract of the aerial parts showed the most promising activity
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toluene‚ cyclohexene and naphthalene in hexene were subjected to parallel chemical testing to differentiate their intrinsic physical properties in terms of structure and behavior. The physical state and color were noted by simple physical observation. Nitration Testing was conducted for preliminary parallel testing until a positive result of yellow oil was seen. For the second and final testing‚ oxidation was done through introducing 3 drops of KMnO4 reagent and 2 drops of 10% NaOH solution to 5 drops of
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aromatic hydrocarbon‚ benzene‚ is compound out of just one such cycle; its formula is C6H6. The representation of benzene through a cycle of 6 carbon atoms with 3 double bounds was proposed by Kekule in 1865: In some special conditions‚ benzene can be hydrogenated‚ the result being a cyclic hexane: | +3H2 | | Under the influence of light‚ chlorine or bromine addition at the benzene’s molecule giving hexachlorocyclohexane: C6H6 + 3Cl2 C6H6Cl6. With ozone‚ the benzene gives a trizonide
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determined through nitration. Oxidation was tested by introducing 8 drops of 2% KMnO4 solution and 3 drops of 10% NaOH solution to 4 drops of the sample organic compound in a test tube and warming the mixture through water bath. All of the test compounds are liquid and colorless and observed to have a plastic like odor. Miscibility test shows that all of the organic compounds are immiscible and all are flammable. Tests for active unsaturation indicate that hexane‚ heptane‚ cyclohexane‚ benzene and toluene
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or can be synthesized. Through a series of chemical reactions with cheap raw materials beginning with beginning with methyl salicylate and‚ it is a cheaper and more efficient method of making salicylic acid from natural resource of benzene. The purpose of the experiment is to prepare salicylic acid methyl salicylate‚ and compare it to the one already made naturally from benzene to determine any differences
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