The reaction used for production of vinyl acetate using ethylene‚ acetic acid and oxygen over a palladium catalyst‚ in gas phase is shown below: 2 H3C–COOH + 2 C2H4 + O2 → 2 H3C–CO–O–CH=CH2 + 2 H2O Vinyl acetate synthesised is used for production of polyvinyl acetate. Acetic anhydride Acetic anhydride can be synthesized by condensation reaction of two molecules of acetic acid. The main process involves
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amounts of starting material in the product‚ which is okay in small amounts‚ but we need to test the product to see if it is within their acceptable ranges to be used. We will be synthesizing synthetic banana oil‚ or otherwise known as isopentyl acetate. We will synthesize thie oil by combining isopentyl alcohol with acetic acid and sulfuric acid‚ and heating under reflux for one hour. After this time‚ we will separate and purify our product via washing with sodium bicarbonate (that separates compounds
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LAB REPORT 4 Isolation of genomic DNA from animal tissues Introduction A rapid expansion of DNA analysis in medical‚ biotechnological and basic research has created the need for simple and efficient commercial methods for isolating genomic DNA. Many different methods and technologies are available for the isolation of genomic DNA. In general‚ all methods involve disruption and lysis of the starting material followed by the removal of proteins and other contaminants and finally recovery
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dried using anhydrous granular sodium sulfate. After dried‚ the sample was placed in a distillation apparatus and heated. This resulted in 1.8g of pure isopentyl acetate‚ a 44% yield. Introduction Isopentyl acetate is yielded by combining isopentyl alcohol with acetic acid using sulfuric acid as a catalyst. The product is isopentyl acetate also known as banana oil. Banana oil is an ester. Esters can be found in fruits and flowers’ scents. When water is added to an ester‚ the process can be reversed
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being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3‚ alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in tlc2. 6. Ethyl acetate is polar and Ethyl acetate- hexane is nonpolar‚ use of polarity differences. Because the
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Preparation of Synthetic Banana Oil Eric Nelson Chem. 253-1: Deepali Rathore Lab 1: Preparation of Synthetic Banana Oil 9-24-10 Purpose To create Isopentyl acetate with no more than 10% isopentyl alcohol and no more than 2% acidic acid in its composition. Theory Esters are a chemical functional group that usually forms by loosing a hydroxyl group and having it replaced with an alkoxy group with the loss of hydrogen. Esters are most commonly produced by taking a carboxylic acid‚ and
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Experiment 13B: Isopentyl Acetate (Banana Oil) Semimicroscale Procedure Taylor Levin 5.28.14 Chemistry 352- Organic Chemistry Lab Summer 2014 Purpose: To prepare isopentyl acetate (banana oil)‚ an ester‚ from isopentyl alcohol and acetic acid through the Fischer Esterification reaction. Reactions: acetic acid + isopentyl alcohol isopentyl acetate + water C2H4O2 + C5H120 CH3COOCH2CH2CH(CH3)2 + H20 Procedure: A reflux condenser was assembled
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Ester water Particularly‚ 1-hexanol was reacted with an excess of acetic acid‚ using an acid catalyst to yield its ester: hexyl acetate. The reaction was performed under reflux which sped up the reaction by continuous vapor-condensation cycles of the solution mixture as the solution boiled. The vapors were blocked from escaping the solution by a stream of cold water running up the
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|[pic] | | | | |UNIVERSITI TEKNOLOGI MARA | | | |FAKULTI KEJURUTERAAN KIMA | | | |CHEMICAL ENGINEERING LABORATORY III | | | |(CHE575)
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t Design and preparation of buffers effective at different pHs Abstract These experiments aimed to determine the optimum pH ranges various buffers are effective and provide opportunity for the use of the Henderson-Hasselbalch equation to prepare a buffer of a specific pH. Three different buffer systems were initially investigated; volumes of weak acid and weak bases of specified concentration were prepared and titrated against strong acid or strong base solutions with pH readings taken at frequent
Free PH Acid dissociation constant Buffer solution