Introduction Aim The main aim of this experiment is to make fatty ethanolamine‚ which is lauric ethanolamine from 2-aminoethanol and lauric acid. The reactions that take place is observed and the percentage yield and melting point is recorded. In this report the procedures used and how the procedures work are explained systematically. Risk and hazards of the experiment were analyzed and are shown below. It was quite important as it ensured that the experiment was safe to carry out. The results
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Wintergreen is put into an Erlenmeyer flask containing sodium hydroxide to create sodium salicylate. The solution is then refluxed which means that the solution will be boiled in a base‚ then condensed in a condenser. This replaces the carbon on the ester at carbon 1‚ with an oxygen atom which will have an ionic bond with a sodium anion. This yields sodium salicylate which will be acidified in methanol (CH3OH) which will remove the sodium bonded to the oxygen‚ and switch it to a hydrogen atom bonded
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CHEMISTRY OF NATURAL PRODUCTS Terpenoids Sameena Bano Department of Chemistry Faculty of Science Jamia Hamdard New Delhi-110062 (24.09.2007) CONTENTS Introduction Classification of Terpenoids Isolation of mono and sesquiterpenoids General properties of Terpenoids General methods of structure elucidation Terpenoids Citral Menthol Camphor Eugenol Keywords Terpenes‚ isoprene‚ citral‚ menthol‚ camphor and eugenol 1 Introduction There are many different classes of naturally occurring
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Similarities and Differences Bacteria and archaea both share the fact that they are single-celled prokaryotic microorganisms that lack membrane enclosed nuclei. It has been discovered that the two typically can be found to have the same size and shape as one another. “They are both found occurring as rods‚ cocci‚ spirals‚ plates‚ coiled etc.” ("Archaea vs. Bacteria‚" n.d.). Both organisms use the flagella to swim and also reproduce by means of binary fission. On the surface these similarities can
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Biomedical research Propolis is the focus of a large number of research projects.[21] Some preliminary research findings (published in the biomedical literature)‚ together with their limitations‚ are described below. Readers are reminded that the following information represents preliminary research and does not constitute medical advice. Readers are directed to their local physician or healthcare provider for medical advice. As an antimicrobial[edit] Preliminary scientific studies show some
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What is a Functional Group? A functional group is a portion of a molecule that is a recognizable/classified group of bound atoms. In organic chemistry it is very common to see molecules comprised mainly of a carbon backbone with functional groups attached to the chain. The functional group gives the molecule its properties‚ regardless of what molecule contains it*; they are centers of chemical reactivity. The functional groups within a molecule need to be identified when naming. *Definition taken
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Yiyi (Ricci) Wang Dr. Ester Sheinberg MUNM 276G Lincoln’s Symphony Orchestra Concert Report Friday night‚ Oct 3‚ at Lied Center‚ a fantastic concert featured by Lincoln’s Symphony Orchestra performed here. It was the best concert I have ever listened to before because of its special performing style. I discovered that performers who played the strings‚ adjusted the tones of their instruments carefully before the concert began. After short opening words by the host‚ two speakers‚ and the conductor
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When Everything Else is Gone‚ There is Always Love In Ishmael Bach’s autobiography‚ a long Way Gone‚ he portrays himself as a young witness of the civil war in his home country Sierra Leone. Beach starts his personal journey at age twelve in his small village where he grew up and ends four years later when he escapes to Guinea. At the beginning of the story Beah is a bright‚ cheerful‚ and untroubled‚ but as the book continues Young Beah takes much pleasure in learning the lyrics to American rap
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INFRARED SPECTROSCOPY: FUNDAMENTALS AND APPLICATIONS Barbara H. Stuart University of Technology‚ Sydney‚ Australia 72 Infrared Spectroscopy: Fundamentals and Applications hydrocarbons appear in the 3000–2800 cm−1 range and the C–H stretching bands of methyl groups and methylene groups are readily differentiated. For methyl groups‚ asymmetric C–H stretching occurs at 2870 cm−1 ‚ while symmetric C–H stretching occurs at 2960 cm−1 . By comparison‚ methylene groups show asymmetric stretching at 2930
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salicylate was introduced in an attempt to weaken the salicylic acid‚ but it was found to be medically inefficient. Above: The molecular structures of salicylic acid and sodium salicylate In 1893‚ Felix Hoffman Jr. discovered a way to synthesize an ester of salicylic acid for Bayer Laboratories in Germany‚ acetylsalicylic acid. It was not as strong as salicylic acid but had the same medicinal properties. Acetylsalicylic acid was then patented in 1899 and became commercially available in 1915 under
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