The Formation Of Esters Aim: To observe the reactions between ethanoic acid and different alcohols in the preparation of a variety of esters. Apparatus: • Bottles containing: glacial Ethanoic acid‚ Methanol‚ Ethanol‚ Propan-1-ol‚ • Propan-2-ol‚ Butan-1-ol‚ Butan-2-ol and Conc. Sulfuric acid. • 1g Salicylic acid • 10 ml Measuring cylinder • Test tubes • 250ml Beaker • One-hole rubber stopper • 50cm length of glass tubing to fit stopper • Hotplate • Safety glasses Method: 1. Set up a 250ml beaker
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is off white crystalline powder soluble in DMSO‚ ethanol‚ methanol‚ water. Cilnidipine is L and N type calcium channel blocker used in treatment of hypertension due to its vasodilating effect(1). Cilnidipine is not official in any
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Phytochemical characterization & antioxidant activity of mangrove plant Sonneratia caseolaris Submitted by: Kumari Priyanka Regd no.-0901106090 Sem-7th‚ Biotechnology
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FUEL OIL BURNERS By Mark Butterfield March 09 INTRODUCTION The history of burners dates back to the early shipping days‚ when fuel oil first started replacing coal as the ships’ primary fuel source. Since then‚ burner designs and construction have come a long way‚ but the principles behind their operation has remained the same. All makes and types of burners have two things in common They need to atomise the fuel They need to mix the fuel with the air needed for combustion
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was carried out‚ the hexane and methanol extracts from roots of A. paniculata did not show any significant activity at various treatment doses‚ when observations were taken after 24 hours (table 2). When the observation period was extended to 48 hours‚ antifeedant activity significantly enhanced to 50.53 % at maximum dose (0.1 %) with hexane extract. Antifeedant activity was significantly superior at the higher doses of 0.03%‚ 0.05%‚ 0.07% and 0.1% with methanol extract after 48 hours. Like in
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Biotechnology‚ WhiteHouse Institute of Science and Technology‚ Purbanchal University‚ Lalitpur‚ Nepal. e-mail: prabinkoirala122@gmail.com Abstract The study focused on phytochemical and biological analysis of Paris polyphylla (PP). Crude Chloroform/Methanol (1:1) extraction performed on the rhizomes of Paris polyphylla collected from himalayan region of Nepal was followed by fractionaion process using petroleum ether and acetone for the separation of extract based on their polarity. The extract was
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Solvents used were water‚ methanol‚ n-butanol‚ ethylene glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane. Then added to the vials was 0.5 mL of isooctane in each one. The vials were then swirled and observed to determine solubility. In part two of the experiment
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In this experiment‚ we used methyl benzoate from the last experiment with HNO3 and H2SO4 to synthesize methyl 3-nitrobenzoate. First we added methyl benzoate to 12 mL cooled conc. Sulfuric acid in a flask. In a separate flask‚ we made a solution of 4 mL conc. Sulfuric acid and 4 mL nitric acid and then added dropwise to the solution of methyl benzoate in an ice bath on a stir plate while maintaining the temperature of reaction between 5-15 °C. After the addition was complete we took the flask out
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fat fruit emulsion with mango puré‚ rapeseed oil and lecithin‚ using simple blending equipment. The purélike products were evaluated for emulsion stability by a storage test‚ oil droplet size by a light microscope and light scattering device‚ viscosity by a viscometer‚ sensory properties by Flavoring profiling. Furthermore the nutritional values were calculated. Successful emulsions were created using up to 50 g/100g rapeseed oil with adequate emulsion stability without lecithin. The energy
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Regulator Freeze Protection MICHAEL W. GILLIS P. ENG GROUP LEADER‚ MEASUREMENT AND PROCESS CONTROL ENGINEERING ATCO PIPELINES Introduction In the transportation of natural gas from wellhead to consumer‚ service conditions will be encountered which may cause the gas and equipment used to regulate and control pressure to experience freezing conditions. Ignoring these design considerations will result in reduced facility reliability and increased operating and maintenance costs. Regulator
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