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Cooling bath. A typical experimental setup for an aldol reaction. Both flasks are submerged in a dry ice/acetone cooling bath (−78 °C) the temperature of which is being monitored by a thermocouple (the wire on the left). A cooling bath or ice bath, in laboratory chemistry practice, is a liquid mixture which is used to maintain low ...
Dry ice: Acetonitrile-41 Dry ice: Pyridine-42 Dry ice: Cyclohexanone-46 Dry ice: m-Xylene-47 Dry ice: Diethyl carbitol-52 Dry ice: n-Octane-56 Dry ice: Diisopropyl ether-60 Dry ice: Chloroform-61 Liquid N 2: Chloroform-63 [2] Dry ice: Ethanol-72 Note: without the addition of ethylene glycol, temp is -78 °C. Dry ice: Trichloroethylene-73 Dry ...
Diethyl ether, or simply ether, is an organic compound with the chemical formula (CH3CH2)2O, sometimes abbreviated as Et2O. [a] It is a colourless, highly volatile, sweet-smelling ("ethereal odour"), extremely flammable liquid. It belongs to the ether class of organic compounds. It is a common solvent.
Cold bath: While a soak in a cold-water bath can also be useful, Dr. Kutcher says that it’s more difficult to keep the temperature consistent than it is in a cold shower.
The order of addition of the reagents of the Mitsunobu reaction can be important. Typically, one dissolves the alcohol, the carboxylic acid, and triphenylphosphine in tetrahydrofuran or other suitable solvent (e.g. diethyl ether), cool to 0 °C using an ice-bath, slowly add the DEAD dissolved in THF, then stir at room temperature for several hours.
A Venice ice bath studio played matchmaker to more than 100 singles, inviting them to speed date in cold plunge pools. Did things heat up in the freezing cold?
A rotary evaporator [1] (rotovap) is a device used in chemical laboratories for the efficient and gentle removal of solvents from samples by evaporation.When referenced in the chemistry research literature, description of the use of this technique and equipment may include the phrase "rotary evaporator", though use is often rather signaled by other language (e.g., "the sample was evaporated ...
When dry ice was mixed with diethyl ether, it was called "Thilorier's mixture", [36] [37] presumably since Thilorier had noted in 1835 that a mixture of liquid carbon dioxide and ether produced extreme cold when sprayed on objects. [38] It was subsequently found that under reduced pressure, temperatures as low as −110 °C could be maintained ...