economy‚ bringing thrice the price of traditional hard cider. In the slow‚ or natural‚ process‚ vats of cider are allowed to sit open at room temperature. During a period of several months the fruit juices ferment into alcohol and then oxidize into acetic acid. The French Orleans process is also called the continuous method. Fruit juice is periodically added to small batches of vinegar and stored in wooded barrels. As the fresh juice sours it is skimmed of the top. Both the slow and continuous method
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Special Report Methyl ethyl ketone – A techno-commercial profile M ethyl ethyl ketone (MEK or 2-butanone) is an organic compound with the formula CH3C(O)CH2CH3. Its CAS number is 78-93-3. The colorless liquid ketone has a sharp‚ sweet odour of butterscotch and acetone. It is produced industrially on a large scale‚ and also occurs in trace amounts in nature. It is soluble in water and is commonly used as an industrial solvent. With natural and synthetic resins‚ MEK produces solutions with low viscosity
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of 5%. The pH of medium was adjusted to initial pH 4.0‚ and incubated at 30℃ for 10 days; highest yield of cellulose pellicle was obtained. The cellulose pellicle productivity did not increased by adding organic acids‚ but presence of 0.5% and 1% acetic acid could enhance the water capacity of cellulose pellicle
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Lab Partner: Sunny Zhao 20C: Acid-Base Titration Purpose/Objective: 1. To titrate a hydrochloric acid solution of unknown concentration with 0.50M sodium hydroxide‚ and determine the molarity of the hydrochloric acid 2. To titrate an acetic acid solution with 0.50M sodium hydroxide‚ and determine the molarity and percentage composition of the vinegar. Apparatus and Materials: Please refer to P.236 of Health Chemistry Laboratory Experiments. Procedure: Part I Determination of molarity
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of NaOH at 1 M (10 mL per run) • 110 mL of NaOH at 0.5 M (10 mL per run) • 220 mL of Acetic Acid at 50% (10 mL per run). • Vernier Temperature Probe. • Erlenmeyer Flask 200 mL. • Graduated Cylinder 25 mL. • Charged Computer with LoggerPro. Method: I gathered all my materials along with obtaining a lab coat‚ safety glasses‚
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coated tablet. Each test tube was swirled until the greatest amount of each solid was dissolved. Each solution was spotted along a labeled starting line on the silica gel TLC plate. The TLC plate was put into a developing chamber containing 200:1 acetic acid and allowed to developed until the solvent reached almost to the top of the TLC plate‚ which took about 10 minutes. When the TLC plate finished developing‚ I observed the plate under UV light and noticed that the salicylamide was the only
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presence of wax and resin can hinder the efficiency of dye removal using conventional technique. A study was initiated for the recovery of wax and resin using a baffle tank‚ a reboiling technique‚ then further by adding up of hydrochloric acid (HCL) and acetic acid after first boiling of wastewater. The efficiency of removal was studied using single and combined dyes. Studies on the effect of temperature‚ pH‚ cooling time‚ and acid added were done to determine the optimum efficiency on wax removal of both
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Carbon and Its Compounds Carbon: Introduction Atomic Number: 6 Electronic Configuration: 2‚ 4. Valence electrons: 4 Property: Non-metal Abundance:- Carbon is the 4th most abundant substance in universe and 15th most abundant substance in the earth’s crust. Compounds having carbon atoms among the components are known as carbon compounds. Previously‚ carbon compounds could only be obtained from a living source; hence they are also known as organic compounds. Bonding In Carbon:- The Covalent
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Waste Utilization in Horticultural Crops Dr.(Mrs.) Neelima Garg Central Institute for Subtropical Horticulture‚ Lucknow Email: neelimagargg@rediffmail.com India has become one of the largest producer of fruits and vegetables in the world producing approximately 30 million tonnes of fruits and 60 million tonnes of vegetables annually. In recent years‚ there has been a shift from conventional farming of food grains to horticulture which include fruits‚ vegetables‚ ornamental crops‚ medicinal
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catalyst. The percent yield of the product was sub-par. It was found to be 54.4%‚ which may have been due to the formation of other byproducts during the experiment. For example‚ the benzoin and copper(II) acetate mixed with ammonium nitrate and acetic acid could have caused the copper(II) acetate to not fully react with the benzoin. This side-reaction led to less benzoin intermediate which in turn led to a less yield of benzil product. Additionally‚ the melting points found were similar to that
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