1. Introduction Ice cream is a favorite of millions‚ because a delicious‚ attractive and relatively inexpensive food item (Marshal and Arbuckle‚ 1996)P2‚7. The protein content of ice cream has an excellent biological value because it contains the essential amino acids such as tryptophan and lysine. So target groups such as elderly can get their required protein from ice cream(Goff and Hartel‚ 2013)P35. In the modern diet‚ here is a concern that excessive usage of fats leads to increasing propagation
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Synthesis of Aspirin and Oil of Wintergreen INTRODUCTION: Synthesis and use of organic compounds is an extremely important area of modern chemistry. Approximately half of all chemists work with organic chemicals. In everyday life‚ many if not most of the chemicals you come in contact with are organic chemicals. Examples include drugs‚ synthetic fabrics‚ paints‚ plastics‚ etc. Synthesis of Aspirin and Methyl Salicylate. The two compounds we will be preparing‚ aspirin (acetylsalicylic acid) and oil
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Sourav Sett National institute of technology‚ durgapur. ------------------------------------------------- Plate Mill project report Sourav Sett National institute of technology‚ durgapur. ------------------------------------------------- Plate Mill project report Project Report Plate Mill Jindal Steel and Power Ltd. Raigarh Name: Sourav Sett College: National Institute Of Technology‚ Durgapur Introduction I am very grateful to Mr. N.Rajkumar and Mr.S.S.Kumar for
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the unknown D liquid and solid by using its acidic and basic characteristics in a chemically active extraction then to identify the unknowns by analyzing the physical properties on IR and NMR spectrums. The neutral solid was purified through recrystallization and the melting point range was determined to be 47.5oC to 48.9oC. The basic liquid was purified with simple distillation and the boiling point of 135oC was concluded. Through the analysis of IR spectrum of each unknown the structures for each
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LAB REPORT! EXPERIMENT#5‚6! MANPREET KAUR KHAIRA! LAB PARTNER: VIAN RAIES! The purpose of this lab exercise was to perform the bromination of (E)-1‚2-diphenylethene (trans-stilbene) by addition reaction in which bromine was added across the double bond to yield a vicinal dibromide. The next step was to perform a double elimination reaction by product gained to synthesize an alkyne‚ that is‚ 1‚2-diphenylacetylene. The two major techniques used in this lab were TLC analysis and UV-vis spectroscopy
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Sedimentary Rocks Dead Horse Point‚ Utah Dr. R. B. Schultz What are sedimentary rocks and what do they represent? Sedimentary rocks are those that represent the material record of environments in the form of rock layers or strata that once existed on earth. There are two (2) types of sedimentary rocks‚ based on their textures: Clastic (also called “Detrital”)-- form from deposition of solid grains; classified based on grain size: conglomerate‚ sandstone‚ and shale Chemical -- form from
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Grignard Reaction: Synthesis of Triphenylmethanol Hai Liu TA: Ara Austin Mondays: 11:30-2:20 Abstract: In this experiment‚ phenylmagnesium bromide‚ a Grignard reagent was synthesized from bromobenzene and magnesium strips in a diethyl ether solvent. The Grignard reagent was then converted to triphenylmethanol‚ a tertiary alcohol with HCl. The reaction for phenylmagnesium bromide was: The reaction for Grignard to triphenylmethanol was: In the formation of the Grignard reagent
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Separation of Acidic‚ Basic and Neutral Substances by Extraction KEYWORDS Solubility‚ density‚ organic layer‚ aqueous layer‚ drying agent‚ protonation‚ recrystallization‚ neutralization‚ extraction ABSTRACT: The purpose of this experiment is to separate the substances in the acidic mixture and identify each constituent in the mixture that were individually separated using extraction. Three reaction tubes were used in the experiment. An acidic mixture containing benzoic acid‚ naphthalene‚
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have been investigating the synthesis of Aspirin and checking for presence and purity of Aspirin. Throughout this coursework we have looked at the history of Aspirin; industrial manufacturing; making salicylic acid; the preparation of Aspirin; recrystallization and purity; melting point; thin layer chromatography (TLC) and titration of Aspirin. I’ve learned a lot about Aspirin‚ how it works and how it is made. We found out that the Aspirin we made and used was actually very pure when we tested it out
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Abstract: The purpose of this lab is to synthesise acetylsalicylic acid (aspirin) by creating a reaction between acetic anhydride and salicylic acid. This was be accomplished through the use of recrystallization. Acetic anhydride and salicylic acid are mixed together‚ and then acidified by the addition of a few drops of concentrated sulfuric acid‚ which catalyzed the reaction. The percent yield is calculated to determine the effectiveness of the reaction in preparing the desired product (aspirin)
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