enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Sublimation (phase transition) - Wikipedia

   en.wikipedia.org/wiki/Sublimation_(phase_transition)

   Notable examples include sublimation of dry ice at room temperature and atmospheric pressure, and that of solid iodine with heating. The reverse process of sublimation is deposition (also called desublimation), in which a substance passes directly from a gas to a solid phase, without passing through the liquid state. [4]

3. Dye-sublimation printing - Wikipedia

   en.wikipedia.org/wiki/Dye-sublimation_printing

   Dye-sublimation printing (or dye-sub printing) is a term that covers several distinct digital computer printing techniques that involve using heat to transfer dye onto a substrate. The sublimation name was first applied because the dye was thought to make the transition between the solid and gas states without going through a liquid stage.

4. Sublimatory - Wikipedia

   en.wikipedia.org/wiki/Sublimatory

   A sublimatory [1] [2] or sublimation apparatus is equipment, commonly laboratory glassware, for purification of compounds by selective sublimation. In principle, the operation resembles purification by distillation , except that the products do not pass through a liquid phase .

5. Freeze drying - Wikipedia

   en.wikipedia.org/wiki/Freeze_drying

   Contact freeze dryers use contact (conduction) of the food with the heating element to supply the sublimation energy. This type of freeze dryer is a basic model that is simple to set up for sample analysis. One of the major ways contact freeze dryers heat is with shelf-like platforms contacting the samples.

6. List of purification methods in chemistry - Wikipedia

   en.wikipedia.org/wiki/List_of_purification...

   Sublimation is the process of changing of any substance (usually on heating) from a solid to a gas (or from gas to a solid) without passing through liquid phase. In terms of purification - material is heated, often under vacuum, and the vapors of the material are then condensed back to a solid on a cooler surface.

7. Dry ice - Wikipedia

   en.wikipedia.org/wiki/Dry_ice

   Sublimation Dry ice in water. It is frequently used to package items that must remain cold or frozen, such as ice cream or biological samples, in the absence of availability or practicality of mechanical cooling. Dry ice is critical in the deployment of some vaccines, which require storage at ultra-cold temperatures along their supply line. [17]