Experiment No. 1: MELTING POINT AND BOILING POINTS OF ORGANIC COMPOUNDS ABSTRACT The properties of organic compounds depend on their chemical structures. Intermolecular forces of attraction affect physical properties such as melting and boiling point. Through the Thomas Hoover apparatus‚ the melting point of 8 test compounds was determined. Salicylic acid exhibited the highest melting point while naphthalene‚ the lowest. The stronger the intermolecular forces of attraction‚ the higher the melting
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of dibenzyl ketone (1‚3-diphenyl-2-propanone) with benzil in the presence of base. The reaction then proceeded with an aldol condensation reaction.5 This product was obtained using extraction (reflux)‚ recrystallization and vacuum filtration to separate the product from the waste. Experiment Scheme: Figure 1: Experiment Reaction5 Figure 2: Step wise reaction mechanism including aldol condensation reaction5 Procedure: About 1.55-g of benzil‚ 1.51-g of dibenzylketone and 12-mL of ethanol were
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glycosides‚ chlorogenic acid‚ tannins‚ mannitol. • Constituent – Mannitol • Uses: • Mild laxative • Osmotic diuretic • Uses: • Mild laxative • Osmotic diuretic Drugs containing Acids‚ Alcohols and Esters • Sumatra Benzoin (Gum Benjamin) (Fam. Styracacea) • Styrax benzoin • S. paralleloneurus • Constituents •
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Social Alchemy 2nd Quarter / SY 2012 – 2013 Eng’r. Josephine A. Ng CHM142L/B21 Concepcion‚ Jermin B. Group# 2 Experiment No. 1 ------------------------------------------------- MELTING POINT AND BOILING POINT OF ORGANIC COMPOUNDS ------------------------------------------------- ABSTRACT The melting point (MP) and the boiling point (BP) are probably the most widely used physical constant in the field of science. Determining the boiling point and the melting point of a compound helps you to characterize
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Melting Point and Boiling Point of Organic Compounds Bongo‚ Sayre‚ J1 1Student‚ Organic Chemistry 1 Laboratory / B11‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapúa Institute of Technology ABSTRACT The melting point of a substance is the temperature at which the material changes from a solid to a liquid state while the boiling point is the temperature at which it changes from liquid to solid. In this experiment‚ the main objectives were to determine the effects of the following
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posteriorly to 8 cm‚ secure to the skin with 2-0 silk‚ dressed with a gauze dressing‚ and secured to the skin with adhesive tape (Continued) OPERATIVE REPORT Patient Name: J. Randy Rolen Patient ID: 115037 Date of Surgery: 12/13/---- Page 2 and benzoin. Patient tolerated the procedure without incident. Estimated operating time was 15 minutes. _________________________ Simon Williams‚ MD Pulmonary/Thoracic Surgery SW: D:12/13/---- T:12/13/----
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name octadecanoic acid. It is a white waxy solid. Formula: C18H36O2 Boiling point: 376.1 °C Melting point: 69.6 °C BENZOIC ACID is a colorless crystalline solid and a simple aromatic carboxylic acid. The name is derived from gum benzoin‚ which was for a long time the only source for benzoic acid. Formula: C7H6O2 Boiling point: 249.2 °C Melting point: 120-122 °C SALICYLIC ACID is a monohydroxybenzoic acid‚ a type of phenolic acid and a beta hydroxy acid. This colorless crystalline
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A composite is defined as the combination of two or more chemically different materials that have properties better than when the compounds act alone. Resin composites‚ which are used in dentistry‚ are compounds composed of three separate agents that act together to form a rigid polymer. The three agents that act together to form the polymer include‚ an organic resin matrix‚ inorganic filler‚ and a coupling agent. The most important agent‚ the organic resin matrix‚ is typically composed of a compound
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chromatography 3. Separation of a three – component mixture by extraction 4. Completion of experiments from day 1 to 4 5. NMR workshop 6. Sandmeyer Reaction: Preparation of p-chloronitrobenzene 7. Synthesis of benzilic acid from benzil 8. Aldol Condensation: Preparation of ethyl cinnamate 9. Isolation of caffeine from tea 10. Completion of isolation of caffeine from tea 11. Catchup day and completion of experiments School of Chemistry University
Free Solvent Acetic acid Chemistry
Lab #2 (Part A‚B) Due date: Oct 5‚ 2010 1 - Theory and mechanism Epoxidation is a reaction of an alkene with a peroxycarboxylic acid (also called peracid) to produce an epoxide product‚ generally performed in inert solvents‚ such as dichloromethane. The epoxide product is a cyclic ether in which the ring contains three atoms. The alkene gains an oxygen from the peracid in a syn fashion. In this experiment‚ R-(－)-carvone is reacting with MCPBA‚ a peracid‚ to produce the epoxide product.
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