UN 1076 – Phosgene HAZARDS: Phosgene is a highly toxic‚ irritating and corrosive gas. Inhalation can cause fatal respiratory damage. Phosgene reacts violently and decomposes to toxic compounds on contact with moisture‚ including chlorine‚ carbon monoxide and carbon tetrachloride. In case of skin contact: If liquid phosgene (below 8.2 deg C) contacts the skin or clothing‚ an inhalation exposure should be suspected. Hazards due to skin contact with the gas is unknown. Phosgene does‚ however‚ react
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dehydration of an alcohol. Cyclohexanol‚ the reagent of this experiment‚ is used in the production of nylon‚ paints‚ plastics‚ detergents‚ textiles and pesticides whereas Cyclohexene itself is used in manufacturing of adipic acid‚ hexahydrobenzoic acid‚ maleic acid‚ cyclohexanol and cyclohexeneoxide. In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. The mixture of cyclohexanol with sulfuric acid is heated in a flask equipped with a fractionating
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plastic like odor. Miscibility test shows that all of the organic compounds are immiscible and all are flammable. Tests for active unsaturation indicate that hexane‚ heptane‚ cyclohexane‚ benzene and toluene are saturated while cyclohexene is actively unsaturated. Hexane‚ heptane‚ benzene‚ and toluene are classified as aliphatic while cyclohexane‚ and cyclohexene are aromatic. All are not oxidized except for cyclohexene. I. Introduction Hydrocarbons are compounds
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constant mass. The percentage of moisture content can be determined by performing some simple calculations. Another method is‚ distillation method (dean & stark). A known weight of food is placed in a flask with an organic solvent such as xylene or toluene. The organic solvent must be insoluble with water‚ have a higher boiling point than water and less dense than water. (Faichney‚ G.J. and G.A.
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be synthesised by reacting 4-aminophenol in acetic anhydride and this is often the first stage of preparing a medicine. This experiment aims to prepare a sample of paracetamol and assess its quality and purity as this need to be checked before it can be formulated into a medicine. 1.2 Method 5.10g of 4- Aminophenol was suspended in water‚ in a quick fit (QF) round bottomed flask in the fume cupboard as 4 – aminophenol is toxic. Ethanoic anhydride (toxic vapor) was added and mixed by swirling and a
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intermolecular forces must be overcome in converting each of the following from a liquid to a gas? (a) CO2; (b) NH3; (c) CHCl3; (d) CCl4. 57. Toluene‚ C6H5CH3‚ is a liquid used in the manufacture of TNT. Its normal boiling point is 111.0°C‚ and its molar heat of vaporization is 35.9 kJ/mol. What would be the vapor pressure (torr) of toluene at 75.00°C? 73. ▲ ■ (a) How many triple points are there for sulfur? (b) Indicate the approximate pressure and temperature at each triple point
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16 Application of TLC in the Isolation and Analysis of Flavonoids Marica Medi-Šari‚ Ivona Jasprica‚ c c Ana Mornar‚ and Željan Maleš CONTENTS Introduction ................................................................................................ 405 16.1.1 Chemistry‚ Biochemistry‚ and Medicinal Significance of the Flavonoids.......................................................................... 405 16.1.2 Brief Overview of Use of TLC in the Analysis of Flavonoids in Plants ........
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Limiting Reagents and Percentage Yield Worksheet 1. Consider the reaction I2O5(g) + 5 CO(g) -------> 5 CO2(g) + I2(g) a) 80.0 grams of iodine(V) oxide‚ I2O5‚ reacts with 28.0 grams of carbon monoxide‚ CO. Determine the mass of iodine I2‚ which could be produced? 80 g I2O5 1 mol I2O5 1 mol I2 1 333.8 g I2O5 1 mol I2O5 28 g CO 1 mol CO 1 mol I2 253.8 g I2 1 28 g CO 5 mol CO 1 mol I2 b) If‚ in the above situation‚ only 0.160 moles‚ of iodine‚ I2 was produced
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Tennessee Williams’ Harold Mitchel: Chivalrous Knight to Cowardly Boy In Tennessee William’s play “A Streetcar Named Desire”‚ Harold Mitchel stands out as a chivalrous man among his group of friends and thus catches the eye of Blanche DuBois. Blanche desperately relies on his gentlemanly nature and demands a certain amount of cavalier that he is pleased to match. Harold‚ better knows as Mitch‚ gets clumsily excited around Blanche’s extraordinary behavior‚ which‚ in substitute‚ feeds her desire
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UNIVERSITI TEKNOLOGI MARA COURSE INFORMATION Confidential Code Course Level Credit Hours Contact Hours : : : : : CHM 556 Organic Chemistry II Degree 4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural
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