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2. Freeze-casting - Wikipedia

   en.wikipedia.org/wiki/Freeze-casting

   Freeze-cast alumina that has been partially sintered. The freezing direction in the image is up. Freeze-casting, also frequently referred to as ice-templating, freeze casting, or freeze alignment, is a technique that exploits the highly anisotropic solidification behavior of a solvent (generally water) in a well-dispersed solution or slurry to controllably template directionally porous ...

3. Dry ice - Wikipedia

   en.wikipedia.org/wiki/Dry_ice

   Dry ice colloquially means the solid form of carbon dioxide. It is commonly used for temporary refrigeration as CO 2 does not have a liquid state at normal atmospheric pressure and sublimes directly from the solid state to the gas state. It is used primarily as a cooling agent, but is also used in fog machines at theatres for dramatic effects.

4. Flash freezing - Wikipedia

   en.wikipedia.org/wiki/Flash_freezing

   Flash freezing. In physics and chemistry, flash freezing is the process whereby objects are rapidly frozen. [ 1] This is done by subjecting them to cryogenic temperatures, or it can be done through direct contact with liquid nitrogen at −196 °C (−320.8 °F). It is commonly used in the food industry .

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8. Freeze drying - Wikipedia

   en.wikipedia.org/wiki/Freeze_drying

   Freeze drying. Freeze-dried strawberries. Freeze drying, also known as lyophilization or cryodesiccation, is a low temperature dehydration process [ 1] that involves freezing the product and lowering pressure, thereby removing the ice by sublimation. [ 2] This is in contrast to dehydration by most conventional methods that evaporate water using ...

9. Cooling bath - Wikipedia

   en.wikipedia.org/wiki/Cooling_bath

   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 ...