! Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel
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EUROPEAN PHARMACOPOEIA 5.0 Acetylsalicylic acid TESTS Appearance of solution. Dissolve 1.0 g in 9 ml of alcohol R. The solution is clear (2.2.1) and colourless (2.2.2‚ Method II). Related substances. Examine by liquid chromatography (2.2.29). Prepare the solutions immediately before use. Test solution. Dissolve 0.10 g of the substance to be examined in acetonitrile for chromatography R and dilute to 10.0 ml with the same solvent. C. N‚N′-diacetyl-L-cystine‚ Reference solution (a).
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Experiment 1: Viscosity of Liquids Victoria Kulczak Lab Partners: Laina Maines & Heidi Osterman Date of Lab: 2/21/11 Due Date: 2/28/11 Abstract: The goal of this experiment was to determine the viscosity of given liquids. Two different methods were employed‚ the first measures time of flow of several methanol-water solutions‚ from point A to point B. The second method involves dropping a foreign object‚ in this case a sphere‚ into a cylinder of glycerol and measuring the time it takes for it to
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components obtained herein. For column chromatography‚ the sample prepared was loaded into a Pasteur pipette plugged with cotton and uniformly packed with silica gel. The eluents used were 7 mL hexane:acetone (7:3)‚ 5 mL hexane:acetone (1:1)‚ 5 mL acetone‚ and 5 mL acetone:MeOH (1:1); the collected eluates were dark green‚ light green‚ yellow green‚ and yellow. For thin layer chromatography‚ the eluates were applied in spots on a TLC plate pre-coated with silica and placed in a developing chamber lined
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THE HILL REACTION: EFFECT OF HERBICIDES (CLEAROUT 41 PLUS AND DIURON 50 WP) IN CORN (ZEA MAYS) LEAVES JENNY A. ADTOON ELIEZER B. GALOPE II SANDY FAYE D. SALMASAN JYAN DESSE M. SOLANO MARIANNE KRISTELLE E. YARRA INTRODUCTION Photosynthesis sustains almost all of the living world directly or indirectly. It is the process of converting light energy to chemical energy of sugars and other organic compounds. The process depends on the interaction between two sets of reactions‚ namely the
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primary and secondary alcohol. 2. Provide the type equation used in Chromic acid test. Answers: Primary alcohols; alcoholaldehydescarboxylic acid Note: A mixture of sodium dichromate or potassium dichromate in dilute sulfuric acid and acetone can also be used as Jones reagent. Secondary alcohols are oxidized to its corresponding ketones. 3. Show the sample equation involved in the reaction between Chromic acid agent and your samples/ which gave a positive result. Ethanol
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carbocation. 5. You ran 2 “qualitative” tests for unsaturation on your product. a. Describe what you observed when the Baeyer (KMnO4) test was run on your sample. After four drops of the product was placed in a small beaker along with ~0.5ml of acetone‚ three drops of KMnO4 was added. The mixture soon turned into a darkish brown color which concludes a positive for a Baeyer test. b. Describe what you observed when the Br2 in CH2Cl2 test was run on your sample. Once again‚ four drops of the
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Flower power Introduction Perfumes and scented products are composed of toxic chemicals like acetone‚ toluene‚ ethyl acetate‚ formaldehyde and ethanol that are found on any list of toxic and hazardous chemicals. All these and other chemicals used in the manufacture of personal care products have been shown in animal studies to cause serious health problems and even death. That’s why we decided to create a natural perfume that is safe for the environment. So we thought that we must encourage
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Characterization of Saponifiable Lipids and Characterization & Isolation of Complex Lipids Jan Kevin Roxas‚ Nashiba Samad‚ Erickson Santos Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Lipids building blocks of different organic material that are water insoluble. This can be divided into simple and complex lipids that have several forms like waxes‚ triacylglycerols‚ phosphoacylgylcerols‚ sphingolipids‚ eicosanoids‚ isoprenoids and many other. To identify‚
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showed that the most polar molecule within each pigment traveled the least far up the chromatography paper‚ which is also polarized. The least polar pigment traveled the farthest up the paper since it was more attracted to the non polar solvent ( acetone) and polarized chromatography paper. In addition‚ the results of the separation of pigments yielded from the chromatography paper was then cut in separate pieces and placed into cuvettes. These cuvettes contained samples of each pigment and were
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