The percent yield of the isopentyl acetate was 74.3% and this low percent yield could have occurred due to some amount of gas escaping from reflux apparatus’ top or apparatus was not fully closed so that some of the heat escaped and did not proceed the reaction well‚ leaving reagents. Another source of error could be that some of the organic layer could have been transferred along with the aqueous layer when the aqueous layer was getting separated from the organic layer by a pipette. One of the
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Contents Page Design Situation……………………………………………………………………………………………………………………2 Design Brief…….……………………………………………………………………………………………………………………2 Limitations……………………………………………………………………………………………………………………………3 Design Specification…………………………………………………………………………………………………………..4‚5 Existing Products……………………………………………………………………………………………………………….6‚7 Justification of Existing Products.………………………………………………………………………………………….8 3 Design Ideas………………………………………………………………………………………………………………………9 Design No.1……………………………….……………………………………………………………………………………9
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Synthesis of Isopentyl Acetate Abstract Isopentyl acetate was synthesized via a Fischer Esterification and purified via simple distillation. The yield was determined to be 25%. The identity and purity of the product was confirmed by comparison of the measured ultra-micro boiling point (140°C) to the published value (142°C).1 Chemical Equation Procedure Isopentyl alcohol (0.787 g‚ 1.2 mL‚ 8.93 mmol)‚ acetic acid (1.574 g‚ 1.5 mL‚ 26.20 mmol)‚ and sulfuric acid (0.368
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INTRODUCTION Isopentyl acetate‚ "banana oil"‚ is a naturally occurring compound that possesses a distinctive odor. It is found in bananas‚ as well as many other organisms. This experiment attempts to produce isopentyl acetate by heating under reflux‚ which involves heating the mixture in a flask with a condenser placed vertically in the neck since any escaping vapours condense and run back into the flask‚ by combining isopentyl alcohol with acetic acid and an acid catalyst. The product was isolated
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Abstract Isopentyl acetate was synthesized in 44.9% yield through a reaction between isopentyl alcohol and acetic acid‚ with sulfuric acid as a catalyst. Identify and purity of the product was confirmed by infrared spectrum analysis of the product and the boiling point (141-142˚C) to the published value of (lit1142.5 ˚C). Procedure: Isopentyl alcohol (.893g)‚ acetic acid (2ml)‚ and concentrated sulfuric acid (4 drops) was added to a 5ml conical vial‚ and then attached to a reflux apparatus.
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of Isopentyl Acetate using an esterification reaction between acetic acid and Isopentyl Alcohol‚ using a strong acid as a catalyst. The product was washed‚ and distilled. This approach is called Fisher esterification‚ whereby esters are produced by the esterification of a Carboxylic acid where it is heated with an alcohol in the presence of a strong acid which acts as a catalyst. The ester produced had a banana flavor. The extraction of the crude product was conducted using sodium bicarbonate
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(it can self-ignite). • Cellulose acetates were developed to replace nitrate. Cellulose triacetate‚ called safety base‚ is much safer to use and store than nitrate. Most current KODAK and EASTMAN Motion Picture Films are coated on a cellulose triacetate base. • Polyester base is used for all print films‚ most duplicating films‚ and some specialty films. Polyester is stronger and wears better than triacetate. Polyester’s storage life is up to ten times that of acetate.
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Ethyl Acetate – NaOH Reaction Kinetics Experiment Martin Novick Group 14‚ Chemical Engineering Laboratory Submitted to Prof. David B. Henthorn September 25‚ 2012 Summary The goal of this project was to determine the pre-exponential factor‚ k o ‚ the activation energy‚ E‚ and the reaction rate constants‚ k‚ of the saponification process of ethyl acetate using sodium hydroxide (NaOH) at 5 temperature between 15 and 25 degrees Celsius. Two trails were performed at temperatures 16‚ 18‚ 20‚ 22‚ and 24
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Food Preservatives‚ Herbicides‚ Cellulose Acetate Propionate) & Geography – Global Trends & Forecasts To 2018”‚ defines and segments the global propionic acid market with an analysis and forecasting of the global consumption volume. Browse 90 market data tables and 30 figures spread through 228 pages and in-depth TOC on "Propionic Acid & Derivatives Market By Applications (Animal Feed & Grain Preservatives‚ Food Preservatives‚ Herbicides‚ Cellulose Acetate Propionate) & Geography – Global Trends
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using xanthan gum solution‚ water and oil. Commonly used as a food thickening agent‚ Xanthan gum is a large molecule composed of several saccharides linked together. The second experiment to be conducted is with the reagents polyvinyl alcohol and sodium borate solutions‚ each solution is to be added DI water to dissolve the solute then mixing both together at a breakthrough point temperature for the formation of a polymer – slime. In the first experiment‚ into two small vials 1.00 mL of DI water
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