pages 520-522 of Pavia D.‚ Lampman G. M.‚ Kriz G. S.‚ and Engel R. G. A Small Scale Approach to Organic Laboratory Techniques‚ Third Edition). This experiment was performed in collaboration with Paula Mendoza. Exceptions to the procedure are: no NMR or wet chemical test for both compounds. Since there was a lack of organic compound we were unable to proceed with any of the identifying tests. RESULTS Key quantities and properties for this experiment are summarized in Tables 1-3. Relevant chemical
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3471.82 cm-1‚ 3060.90 cm-1‚ 1597.38 cm-1‚ and 1489.64 cm-1‚ which helped to testify whether the identity of the product matched the expected triphenylmethanol. The identity of the product being correct was further confirmed by way of both proton and carbon-13 NMR spectra. This is due to the fact that both spectra yielded peaks that contained the main structural residues‚ alcohol and aromatic groups‚ of triphenylmethanol. The final yield of pure triphenylmethanol was 8.04 grams‚ resulting in a percentage
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A Level Science Applications Support Booklet: Chemistry A Level Science Applications Support Booklet: Chemistry Contents INTRODUCTION....................................................................................................................................1 1 – THE CHEMISTRY OF LIFE .............................................................................................................2 1.1 – Introduction ........................................................................
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Objective: In steam distillation lab (lab 3)‚ we must obtain pure Eugenol from cloves through the process of steam distillation. In the crystallization lab (lab 4) part 1‚ we must acquire the best possible pure crystallization of acetylsalicylic acid from aspirin and in part 2 we must obtain a similar pure crystallization of benzil from an impure mixture of benzil. Materials: In lab 3‚ we used 75 g of cloves from which we must extract Eugenol. Water was largely used as a solvent. A polar solvent used
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aMicroscale Synthesis of Isopentyl Acetate (Banana Oil) Objective: Carried out the microscale synthesis of isopentyl acetate by direct esterification of acetic acid and isopentyl alcohol. This was an acid catalyzed Fischer esterification. Both extraction and distillation were employed to obtain a pure product. IR spectroscopy and gas chromatography were used to determine purity of the final product. Reagents: * Compound: | * MW (g/mol): | * MP (°C): | * BP (°C): | * Density (g/mL):
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the aromatic hydroxyl compound‚ eugenol from crushed cloves using steam distillation. After conducting the distillation‚ the expected two layers were not visible in the centrifuge tube. Subsequently‚ the extraction and evaporation did not produce the expected oil. This result is probably due to the collection of only water vapor during distillation. From another group’s data‚ 3.80% of the oil was recovered from the cloves in which the major component is eugenol. The IR spectrum obtained is consistent
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MSA University Faculty of Pharmacy Organic Chemistry Department Spectrometry Course Code: PC 222 Name: Ghazal Mhd Bassam Bakieh ID: 136909 Name: Christine Botros Mihail Bishay ID:124509 Name: Yaman Mhd Fawaz Hawasly ID: 137215 DR/ Hala I-Infrared spectrometer and sampling techniques Spectrophotometer Spectrophotometry in chemistry is a quantitative measure of the reflection or transmission of material properties as a function of wavelength. It is more
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of hyaluronic acid (HA) with glycidyl methacrylate (GM) is a strategy for producing photocross-linkable macromers to generate biodegradable hydrogels by in-situ injection and light-induced polymerization. Facile synthesis and characterization by 1H NMR spectroscopy of a series of photopolymerizable macromers based on HA-glycidyl methacrylate (HAGM) conjugates with various degrees of methacrylation (DM) ranging from 14% to 90% are described. Aqueous solutions of HAGM were photopolymerized to yield
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lavandin‚ allspice‚ ylang-ylang and cananga. 2. Clove leaf is dark brown oil with a crude‚ burnt-woody odour. 3. Clove stem oil is a pale yellow liquid with a strong spicy-woody odour. 1. Bud: 60-90% eugenol‚ eugenol acetate‚ caryophyllene and other minor constituents. 2. Leaf : 82-88% eugenol with little or no
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call Eugenol. One of the minor components is called Acetyleugenol. Draw the structures of both of these compounds (Wikipedia may be helpful). What would be a good estimate for the pKa of Eugenol? Eugenol‚ pKa=10.19 at 25 degrees C. 3.) The recovered clove oil will be analyzed by Infrared Spectroscopy. What are the basic principles of Infrared Spectroscopy (can be included in the introduction if you prefer). How will we be able to distinguish between Eugenol and Acetyleugenol
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