Abstract: Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction‚ solubility‚ crystallization and vacuum filtration. The experiment was carried out two times‚ both of which were successful. Background Information: This experiment combined all the knowledge of the previous labs performed throughout the semester. An unknown mixture containing
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DIOXANE IN SHAMPOOS/ CONDITIONERS/HAIR CREAMS/ SODIUM LAURETH SULFATE BY HEAD SPACE GAS CHROMATOGRAPHIC TECHNIQUE INTRODUCTION 1-4‚ DIOXANE 1‚4-Dioxane is a heterocyclic organic compound‚ classified as an ether. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether. The compound is often called simply Dioxane because the other Dioxane isomers (1‚2- and 1‚3-) are rarely encountered. CHEMISTRY OF 1-4‚ DIOXANE
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ABSTRACT This experiment was conducted to synthesize methyl benzoate form benzoic acid and methanol by using the Fischer esterification method. The Fischer exterification technique is utilized in the academic and industrial settings due to the simplified synthesis and safety parameters of the overall reaction. Both benzoic acid and methanol are relatively cheap to obtain from a commercial source as well as being easy to store with a relatively long shelf life. The Fischer esterification method is
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Crystalline | White crystalline | White crystalline | Grey power | White powder | Melting point | High | Low | High | Medium | High | High | Solubility in water | Insoluble | Insoluble | Insoluble | Soluble | Insoluble | Soluble | Solubility in ether | | | | | | | Conductivity of solid | Conducts electricity | Non-conductor | Non-conductor | Non-conductor | Conducts electricity | Non-conductor | Conductivity of solution | Conducts electricity in solution | Non-Conductor | Non-conductor
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separated based on solubility and melting points‚ they must be in a solvent that is immiscible in nature; for example‚ ether and water. The organic acid compounds would be insoluble in water but is often soluble in ether. However‚ the basic solution added would deprotonate the organic acid and form an ionic salt. As a result‚ now this salt is soluble in the water rather than the ether. As Maurer and his colleagues states in their journal article that Proton transfer and acid-base neutralization reactions
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Benzoic acid‚ C7H6O2‚ is a white crystalline solid and a simple aromatic carboxylic acid with a faint‚ pleasant odor. Its molecular weight is 122.12 g/mol. It is very slightly soluble in cold water‚ soluble to acetone and benzene‚ and very soluble to ether and ethanol. Its solubility in water is 1.9 g/L at 0°C and 68 g/L at 95°C. It has a density of 1.2659 g/cm3 at 15 torr and has a melting point of 122.4°C. It has a boiling point of 249.2°C. Figure 1. Structure of Benzoic Acid Naphthalene
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Epoxidation Reactions Lab Report 2 Abstract An oxygen atom is transferred from a peroxy acid to the carbon=carbon double bond thus forming an epoxide. Scheme 1. Oxone Epoxidation. Scheme 2. mCPBA Epoxidation. The percent yield for the Oxone epoxidation reaction was 65% yield and the mCPBA epoxidation reaction was 70% yield. Oxone is the greener alternative because using mCPBA is twice as expensive as Oxone and leaves behind the epoxide plus m-chlorobenzoic acid while Oxone creates non-toxic
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Based on common solvent impurities the peak at ~3.33 ppm is water‚ ~2.30‚ 7.18‚ and 7.25 ppm is toluene‚ ~1.09 ppm is diethyl ether‚ ~3.41 is ethylene glycol‚ and ~2.50 ppm is DMSO.6 The 1H NMR of the intermediate shows a shielded proton peak in the 0.9-1.7 ppm region with an integration of 3 protons as expected of the methyl group furthest away from the electron withdrawing
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Oxidation of Cyclododecanol Bo Schuetz Chem 34l Section 004 10/29/2024. Introduction Goal: The objective of this experiment was to convert cyclododecanol‚ a secondary alcohol‚ into cyclododecanone‚ a ketone‚ through an oxidation reaction using sodium hypochlorite (NaClO) as the oxidizing agent. Oxidation reactions of alcohols are fundamental in organic synthesis‚ as they enable chemists to selectively introduce new functional groups‚ which can subsequently be used to build more complex molecules
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An old well-known method to stabilize a peptide sequences or protein motifs is N-terminal and C-Terminal modification to resistance against exo-nucleases cleavage. Due to its feasibility‚ we decided to perform this type of modification in order to stabilize synthesized sequences based on previous protocols. Understanding the appropriate compound and choosing the way of performance‚ were sensitive and definitely time consuming. Finally‚ N-terminal modification with 5(6) Carboxyfluorescein (FAM) in
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