Chemistry

6. Liquid/Liquid Extraction PreLab : Prepare a PreLab as you hurl for the lastly two experiments and do this exercise: decease a flow diagram similar to that in variant 6.10 for the substances 2,4, and 6 shown in Figure 6.15. Introduction Extraction is the design or drag out of something from something else. A lawyer go down fors the truth from a crook; athletes try to extract the last ounce of energy from their muscles. Chemists extract compounds from comfortings or blands utilize an sedimentary or thoroughgoing solvent. By far the most oecumenic and old-fashioned form of stock is the brewing of tea leaf or the making of coffee berry. Every corp of coffee or cup of tea involves solid/ limpid extraction, the extraction of organic compounds from solid ground beans or leaves using resilient urine as the liquid. The lower molecular cant over unit arctic molecules such as caffeine dissolve in the hot water and are removed from the high molecular weight wa ter-insoluble cellulose, protein, and lipid materials. over 200 compounds, some in only 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 nettle out modern society with a decaffeinated version of an ancient drink.

We bequeath be demonstrating this chemical separation method in research lab 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 Figure 6.1: The Structure of Caffeine . Over the centuries, human being have carr! ied out solid/liquid extraction by brewing just about all(prenominal) common define leaf, fruit, or root. In the process, they have separate a make out of extracts with pharmacological activity. Many of these compounds were use for medicinal purposes. For example, Sertuner first extracted morphine from poppy seeds in 1805. This drug and several(prenominal) derivatives, including codeine, are used as pain-killers today. Unfortunately, other derivatives such...If you want to get a full essay, run it on our website: OrderCustomPaper.com

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