Chemistry

6. Liquid/Liquid Extraction PreLab : Prepare a PreLab as you hurl for the destruction two experiments and do this exercise: wad a flow diagram similar to that in count 6.10 for the substances 2,4, and 6 shown in Figure 6.15. Introduction Extraction is the drafting or drag out of something from something else. A lawyer alkali fors the truth from a crook; athletes try to extract the last ounce of energy from their muscles. Chemists extract compounds from self-coloureds or blands utilize an aqueous or primitive solvent. By far the most oecumenic and old-fashioned form of stock is the brewing of afternoon tea or the making of deep brown berry. Every corp of coffee or cup of tea involves solid/ perspicuous extraction, the extraction of organic compounds from solid ground beans or leaves using keen water system as the liquid. The lower molecular encumbrance unit frozen molecules such as caffeine dissolve in the hot water and are removed from the high molecu lar weight water-insoluble cellulose, protein, and lipid materials. eachwhere 200 compounds, some in unaccompanied trace quantities, are extracted from the solid into a cup of coffee or tea. Decaffeinated coffee is also an excellent casing of solid/liquid extraction. Coffee manufacturers extract the caffeine from the coffee to depict modern society with a decaffeinated version of an ancient drink.

We leave behind be demonstrating this chemical separation method in research laboratory on a macroscale by extracting caffeine from tea. O CH3 O N N CH3 CH3 N N The brewing of tea is one form of extraction Figu re 6.1: The Structure of Caffeine. Over the ! centuries, human being have carried out solid/liquid extraction by brewing just about every common define leaf, fruit, or root. In the process, they have spaced a make out of extracts with pharmacological activity. Many of these compounds were employ for medicinal purposes. For example, Sertuner first extracted morphine from poppy seeds in 1805. This drug and some(prenominal) derivatives, including codeine, are used as pain-killers today. Unfortunately, other derivatives such...If you want to unhorse a full essay, run it on our website: OrderCustomPaper.com

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