Page 1 of 25 - About 246 Essays
  • Esters Lab

    Introduction Some esters are used as food flavourings, while other esters are used as fragrances. Esters are a functional group in organic chemistry. They are characterized by a carbon bound to three other atoms: a single bond to a carbon, a double bond to an oxygen, and a single bond to an oxygen (Clark, 2004). The single bond oxygen is bonded to another carbon. Esters can be produced through various synthetic routes. Since, esters are produced from mixing carboxylic acids and alcohols, they can synthesized artificially in labs. One possible way to synthesized esters is to react an alcohol and a carboxylic acid. The purpose of this lab was to observe the synthesis of esters and identify the odor of each ester synthesized. The procedure to…

    Words: 1307 - Pages: 6
  • Ester Synthesis Lab Report

    Introduction The functional group, ester, is composed of an oxygen atom bonded to a carbon that is double-bonded to an oxygen. Esters occur naturally in flowers, fruits, and spices. Similarly, carboxylic esters are typically used in the formulation of artificial flavorings, as they have characteristic smells and tastes. Isopentyl acetate is a carboxylic ester associated with a banana scent. Ficher-Speier esterfication is the technique used in order to synthesize isopentyl acetate. This type of…

    Words: 835 - Pages: 4
  • Carboxylic Acid Synthesis Lab Report

    Purpose: As derivatives of carboxylic acids, esters are abundant compounds that often contribute to the fragrances in flowers, fruits, and coffee. Esters are synthesized from either organic or inorganic acids through a process called esterification. In this reaction, a carboxylic acid (RCOOH) and an alcohol (R’OH) mix in the presence of a strong acid catalyst to form a neutral, water-insoluble ester (RCOO’R) that gives off a pleasant smell. The following is an example of this reaction: The…

    Words: 1378 - Pages: 6
  • Anti Bumping Lab Report

    The calculated percentage yield was 0.82%. Which although was low, could be accounted for the equilibrium reaction and the loss of product due to transfer and spilling. The smell of the produced butyl ethanoate ester was nail polish remover, which is clearly not the smell of pears which through research it was meant to smell like. This indicates that the esterification process was unsuccessful. Another indication that the esterification process was unsuccessful was that the product was pipped…

    Words: 1691 - Pages: 7
  • Acetaminophen Synthesis Lab Report

    Introductions: The purpose of this experiment is to synthesize acetaminophen and esters in order to apply the process of retrosynthetic analysis to determine the unknown alcohols used to produce the esters. Acetaminophen, a popular active ingredient in many over-the-counter drugs, is used as a pain reliever and a fever reducer. It is synthesized from the reaction between a carboxylic acid and an amine; thus, acetaminophen contains hydroxyl and amide functional groups.1 C6H7NO + C4H6O3 C8H9NO2 +…

    Words: 839 - Pages: 4
  • Propranolol Drug Release Study

    By considering the recorded Blood pressure data, among the synthesized derivatives, 9c has shown significant anti-hypertensive activity and prolonged duration of action when compared to the standard drug Propranolol but onset of action is slightly delayed than standard drug, which may be due to time required for ester hydrolysis. The reduction in Systolic Blood Pressure in case of 9c is more than that of the standard drug, Propranolol which suggests the probable synergistic effect of 2-phenyl…

    Words: 712 - Pages: 3
  • Ethyl Cinnamate Synthesis

    industrial applications, such as the synthesis of epoxides, esters, carotenoids and vitamin A.2,3 Specifically, the ester ethyl cinnamate is used as a flavouring agent and in perfumes. The diastereomers of the alkene are distinguished through Proton Nuclear Magnetic Resonance (1H NMR) spectroscopy, where the coupling constants of alkenyl protons are different for (E) and (Z) isomers.4 It is often…

    Words: 921 - Pages: 4
  • Extraction Of Alkali From Banana Peels Lab Report

    Extraction of alkali from banana peels is known to depend on such parameters as ashing temperature, ashing time, soaking time and particle size of the ashed sample, soil type and variety. Alkali was extracted from three Nigerian grown banana peels namely: Saaro, Oloosun and Paranta for the purpose of determining the concentration of the extracted alkali. The concentration of the extracted alkali ranged from 0.02 to 0.10mol/dm3. The three varieties of the banana peels gave a maximum concentration…

    Words: 2118 - Pages: 9
  • Curcuma Longa Case Study

    2.1 Test materials: The essential oils of Curcuma longa (Zingiberaceae) rhizomes, Pogostemon heyneanus (Lamiaceae) leaves and Zanthoxylum limonella (Rutaceae) fruits were obtained from a commercial oil extraction plant in Assam, India. DMP was supplied by High Purity chemicals, New Delhi, India while DEPA was obtained from Defence Research and Development Establishment, Gwalior, India. Four concentrations (5, 10, 20 and 30%) of the essential oils, their mixtures, DEPA and DMP were prepared in…

    Words: 1601 - Pages: 7
  • Lab Experiment: The Purpose Of Banana Oil

    Hd 1.649 Multiplet _______ 2.2 1 He 0.922 Doublet 2.1 10 6 Conclusion/Discussion: The Fischer-Esterification of acetic acid and isopentyl alcohol yielded 4.04g of isopentyl acetate. The IR, boiling points and 1-H NMR has been used to analysis the product. Evaluating the 1H NMR it showed the purity of the product was 94% pure with a 54% corrected yield. The carbonyl group C=O stretch was at 1743.1 cm-1 of the IR spectrum. If there is a C=O present in the molecule, there will be a…

    Words: 1119 - Pages: 5
  • Previous
    Page 1 2 3 4 5 6 7 8 9 25

Related Topics:

Popular Topics: