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A cooling bath or ice bath, in laboratory chemistry practice, is a liquid mixture which is used to maintain low temperatures, typically between 13 C and −196 C.These low temperatures are used to collect liquids after distillation, to remove solvents using a rotary evaporator, or to perform a chemical reaction below room temperature (see Kinetic control).
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Coulson Richardson's Chemical Engineering Vol.6 Chemical Engineering Design 4th Edition
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Destructive distillation is a chemical process in which decomposition of unprocessed material is achieved by heating it to a high temperature; the term generally applies to processing of organic material in the absence of air or in the presence of limited amounts of oxygen or other reagents, catalysts, or solvents, such as steam or phenols.It is an application of pyrolysis.
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Jan 11, 2022 After the reaction, a 6.5 mL of the reaction liquid was added into the flask, and water as solvent was removed by rotary evaporator. The left products were mixed with 0.5 mL of …
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Jan 25, 2014 About 0.2 mmol/L solution of DPPH • in methanol was prepared, and 500 L of this solution was added to different concentrations of the extracts (50-250 g/mL). The mixture was shaken vigorously and allowed to stand for 30 min at room temperature.
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Jul 09, 2020 A 50 mL conical tube containing 0.1 g of the sample extract and 50 mL methanol was extracted by ultrasonication at 50 C for 20 min. The extracted sample was cooled down at room temperature and filtered through a Minisart syringe filter (0.45 μm, regenerated cellulose).
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Mar 30, 2022 Step 4: Evaporate the Methanol. Gently heat the mixture overnight to evaporate the methanol. As the methanol evaporates, 5-MeO-DMT “oil slicks” form on the surface of the liquid. Step 5: Purify the 5-MeO-DMT. Now that the 5-MeO-DMT is created, it needs to be separated from the rest of the elements in the mixture.
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Methanol (CH3OH) Application Specific Methanol. Additional Application Specific Methanol; ... Rotary Evaporator; Drying Chambers and Towers; Freeze Dryers; Histology & Cytology. Autopsy Equipment. ... Temperature Monitors; Moisture Meters; Water Purification System.
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Nov 08, 2013 The filtered solutions containing plant compounds were dried by rotary evaporator (Rotavapor -R 210/R215; BUCHIL Labortechnik AG). ... (13.5 mm) was noted for Staphylococcus aureus by methanol (room temperature) extracted samples when applied at 12 μg concentration followed by methanol ...
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