What is the formula for liquid nitrogen
Liquid nitrogen: areas of application
The properties of liquid nitrogen and the possible uses in industry and society.
The chemical element nitrogen is a colorless, odorless and tasteless gas, which belongs to the non-metals. If you expose nitrogen to a low temperature of minus 196 degrees Celsius, it condenses and becomes liquid. The name liquid nitrogen is derived from the English liquid nitrogen and its chemical formula, which is used to identify containers, among other things, is LN or LN2. Liquid nitrogen has a wide range of uses due to its low temperature and low cost of purchase.
Properties of liquid nitrogen and application in industry and society
- Liquid nitrogen has a wide range of applications, especially as a refrigerant. It can maintain temperatures well below the freezing point of water, i.e. liquid nitrogen can quickly freeze objects of all kinds containing water without affecting the structure or taste of an object.
- In this frozen state, objects can be processed in a controlled manner. But even non-water-containing objects that are immersed in liquid nitrogen can reach the state of deep-frozen without changing their structure.
- Liquid nitrogen is used in many areas such as medicine, the food industry, gastronomy, funeral homes, construction metal industry and recycling.
The areas of application of liquid nitrogen
- In medicine, liquid nitrogen is used to store cells and other biological materials at low temperatures. But it can also be used in dermatology for the removal of warts or other skin changes such as scars.
- The food industry makes use of the properties of liquid nitrogen for chopping food while it is ice, shock freezing food for a longer shelf life and for making ice cream.
- In the catering industry, eating with liquid nitrogen in the kitchen is called molecular cuisine.
- A new area of application is the funeral home (currently only exists as a pilot project in Sweden). In a so-called nitrogen burial (promession), the corpse is placed in a bath of liquid nitrogen, frozen and then ground into a small powder.
- The metal construction industry also benefits from liquid nitrogen for cooling hot concrete. In the recycling sector, nitrogen is used to separate stuck materials such as car tires with other substances, but metal is also freed of insulating materials by means of nitrogen cooling, such as in cables.
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