Medical uses of nitrogen include:
1. freezing and removing skin lesions
2. freezing blood vessels in surgical procedures
3. cryogenic refrigerators for preservation of tissues, blood, oocytes, sperm, umbilical cord blood, etc.
Refrigeration and Freezing in the Food Industry
Cryogenic technologies provide a deep, rapid freeze that does not harm the appearance and texture of food.
There are various methods for cooling and freezing food:
1. Refrigerated transportation:
Liquid nitrogen can be injected to maintain low temperatures in the distribution truck's cooling tank instead of using conventional cooling technology. The cryogenic system is characterized by low maintenance and depreciation costs, variable cooling output, rapid cooling rate, extended product shelf life, very low noise level and environmentally friendly.
2. Tunnels and Freezers:
Liquid nitrogen provides a continuous solution for cooling and rapid freezing of the product membrane such as ice cream, meat products, etc.
Liquid nitrogen is poured into the mixture containing the base (vegetables, pastas, meat products, etc.) and the sauce to coat the product with the sauce and its immediate freezing, giving the product an aesthetic look.
Preservation in the Food Industry
Gas Nitrogen Nitration provides controlled atmosphere conditions (MAP) for prepared food packages, snacks, coffee, fruits and vegetables, poultry products, etc. Nitrogen expands and releases oxygen, thus preventing oxidation and prolonging the shelf life of the product, without loss of color, freshness and freshness.
Nitrogen Dripping into Bottles
The perfect way to pressurize is by simply adding a drop of liquid Nitrogen in the bottle.The rapidly evaporating liquid nitrogen removes oxygen from the bottle. Once the bottle cap is screwed on, the remaining and still evaporating liquid nitrogen pressurizes the bottle. Thus, thin plastic bottles become strong and able to resist impact, which makes their storage and transportation easier and less expensive.
Cooling concrete with nitrogen slows down its hardening rate (hydration), reduces the temperature gradient and reduces traction. This helps prevent the formation of cracks in concrete. This technology is particularly useful in Israel given the country's hot climate.
Pulling Aluminum (Extrusions)
Gas or liquid nitrogen injection in the extrusion process helps to cool the ring and prevent aluminum oxidation, thus increasing the rate of production, reducing costs and improving the quality of the product.
Metallurgical Treatment Processes
In the process of thermal treatment (impregnation, relaxation and cementation) of metals, nitrogen is used as a carrier gas for the carbon that penetrates the outer layer of the metal, helping to control the strength and rhythm of the charcoal. In addition, nitrogen is used to create positive pressure in the oven and to "rinse" during the process to prevent oxidation.
Nitrogen plays a role in the production of semiconductors and silicon components and allows "wave soldering" without oxygen.
Nitrogen is used in some production processes of drugs requiring an environment without oxygen.
Nitrogen is used for research in an oxygen-free environment to neutralize oxidative effects.
Nitrogen is typically used to power pneumatic surgical equipment during various procedures, and is supplied by high-pressure cylinders.
Security and Defense Equipment
Nitrogen is used for the cryogenic process in night vision devices, aerial photography, and inflating aircraft tires and more.
Non-toxic Pest Control
Nitrogen is used in a pesticide method that creates an oxygen-free space (anoxia). This method of pest control is toxin-free and chemical-free. It allows prolonged treatment and storage without refrigeration. This method is suitable for works of art, books and sensitive raw materials such as flour, spices, dry food, etc.
Using nitrogen to inflate tires extends tire life and contributes to savings and safety. Nitrogen does not accumulate moisture and prevents rusting of the metal fibers in the tire, maintains constant pressure and prevents its warming, preserves the life of the janit and does not ignite.