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2. Air-free technique - Wikipedia

   en.wikipedia.org/wiki/Air-free_technique

   Two procedures for degassing are common. The first is known as freeze-pump-thaw — the solvent is frozen under liquid nitrogen, and a vacuum is applied. Thereafter, the stopcock is closed and the solvent is thawed in warm water, allowing trapped bubbles of gas to escape. [4] The second procedure is to simply subject the solvent to a vacuum.

3. Ice pack - Wikipedia

   en.wikipedia.org/wiki/Ice_pack

   An instant cold pack is a single-use device that consists of two bags; one containing water, inside a bag containing ammonium nitrate, calcium ammonium nitrate or urea. When the inner bag of water is broken by squeezing the package, it dissolves the solid in an endothermic process. This process absorbs heat from the surroundings, quickly ...

4. Cold trap - Wikipedia

   en.wikipedia.org/wiki/Cold_trap

   When performed on a larger scale, this technique is called freeze-drying, and the cold trap is referred to as the condenser. Cold traps are also used in cryopump systems to generate hard vacua by condensing the major constituents of the atmosphere (nitrogen, oxygen, carbon dioxide and water) into their liquid or solid forms.

5. Pumpable ice technology - Wikipedia

   en.wikipedia.org/wiki/Pumpable_ice_technology

   Pumpable ice can be produced in one of two ways: either by mixing crushed ice with a liquid or by freezing water within a liquid. The primary way is to manufacture commonly used forms of crystal solid ice, such as plate, tube, shell or flake ice, by crushing and mixing it with water. This mixture of different ice concentrations and particle

6. Hot Water Instantly Freezes When Shot From Water Gun ... - AOL

   www.aol.com/news/hot-water-instantly-freezes...

   Science fanatic Jason Zackowski decided to enjoy the negative temperatures in Red Deer, Alberta, on January 14, by performing an outdoor experiment using hot H2O and a water gun.Zackowski has ...

7. How to Make Ice Marbles By Freezing Water Balloons with Food ...

   www.aol.com/ice-marbles-freezing-water-balloons...

   The color of the water balloons doesn’t matter, but the color of the food dye that you drip inside does. Grab whatever color dye you want your marbles to be, and add a few drops to the inside of ...

8. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   A water dispenser with refill water bottles. A water dispenser, sometimes referred to as a water cooler (if used for cooling only), is a machine that dispenses and often also cools or heats up water with a refrigeration unit. It is commonly located near the restroom due to closer access to plumbing.

9. Boiling Water Instantly Freezes as Temperatures Dip in ... - AOL

   www.aol.com/news/boiling-water-instantly-freezes...

   A wind chill warning remained in effect until 9 am on February 16 for parts of South Dakota as “dangerously” cold wind chills as low as 40 below zero were forecast for the area.The National ...