tape into the solvent. The ph was at a 1. The mixture was cooled by placing it over into an ice/water bath for 15-20 minutes. This produced aspirin. We extracted the aspirin by vacuum filtration‚ and washed it on the filter with cold distilled water. The aspirin was set aside and placed in the microwave to dry. After the aspirin was dry we weighed it (0.227grams). To isolate the unknown component we used a filter flask attached to a trap and aspirator to evaporate the solvent from the dicholormethane
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Experiment D-Pre-lab: Synthesis of a Room Temperature Ionic Liquid (RTIL) Name: Morgan Smith Student #:130635880 Date Submitted: November 7‚ 2014 Lab Section: Friday 2:30pm‚ Section 9 T.A: Matt Halloran 1. Refer to the last page. 2. Arrow pushing mechanism: 3. Refluxing is when the reactants are boiled and the vapor that is produced is cooled. When the vapor is cooled it changes back to its liquid state and returns to the flask. 4. The visual cue that allows you to determine that the
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remained in the organic phase. After the separation of the aqueous phase‚ its extraction with DCM and its acidification‚ the organic extract was dried over anhydrous magnesium sulfate. The eugenol was finally isolated by evaporation of the organic solvent in the rotary
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synthesized. They have been characterized using TG‚ DTA‚ IR spectroscopy‚ X-ray and atomic absorption spectrophotometry. The thermal conversion of the compounds is 54.36–88% at 1000°C. Their solubility in sodium hydroxide‚ mineral acids‚ organic solvents‚ distilled water and salts solution has been measured. Fungicidal activity of the dithiocarbamates has been tested by well or cup diffusion method using five fungi species. Their activity has also been tested by broth dilution method using six bacterial
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LSD-25 Synthesis from "Psychedelic Guide to the Preparation of the Eucharist": Preparatory arrangements: Starting material may be any lysergic acid derivative‚ from ergot on rye grain or from culture‚ or morning glory seeds or from synthetic sources. Preparation #1 uses any amide‚ or lysergic acid as starting material. Preparations #2 and #3 must start with lysergic acid only‚ prepared from the amides as follows: 10 g of any lysergic acid amide from various natural sources dissolved in 200 ml of
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A few errors that could have been made during the experiment was not clearing out the flask‚ too much solvent could have been used‚ or even not enough time was allowed to recrystallize. The overall experiment was successful because the right measurements were taken in order to compare to the actual properties of the pure
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Experimental set-up Observations Figure 1 Figure 2 Figure 3 Figure 1 show the crystallisation reaction when the saturated sodium chloride solution was added to the cool reaction mixture. The salt of p-Toluenesulphonic acid started forming. Figure 2 show the wet crystal after the precipitated salt was being filtered by suction. The wet crystal was light purple
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with Panacetin to produce the sucrose as an insoluble solid. Aspirin is removed from the solution by reacting with sodium bicarbonate. The aqueous layer reacts with hydrochloric acid‚ the unknown component can then be isolated by evaporating the solvent from the dichloromethane solution. Observations and Data: Aspirin reacted with Sodium Bicarbonate to form salt‚ sodium acetylsalicylate. The reaction caused fizzing and gas. When hydrochloric acid was added to sodium acetylsalicylate
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Mass: 138.12 g/mol Melting Point: 1590C Boiling Point: 2110C Density: 1.44 g/cm3 Mildly irritating (pulmonary irritants). Harmful by inhalation‚ ingestion and through skin absorption. Acetic Anhydride Starting‚ Material‚ serves also as the solvent colorless liquid with a smell of acetic acid Molar Mass: 102.09 g/mol Melting Point: -73.1 0C Boiling Point: 139.8 0C Density: 1.082g/cm3 Corrosive Flammable and Lachrymator which makes eyes teary. It is poisonous and will cause serious damage
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Isolation‚ purification and characterization of alkaloid caffeine from tea leaves Date Submitted: September 3‚ 2014 Abstract Caffeine is one of the main constituents of tea leaves. In this experiment‚ 0.0039 g of pure caffeine was isolated from tea leaves. This was done through solid-liquid extraction followed by multiple liquid-liquid extraction. Then crude material obtained was then purified by sublimation. The isolated caffeine was subjected to thin layer chromatography (TLC) together
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