Liquid and gaseous nitrogen N2
- Nitrogen gas, liquid nitrogen
Nitrogen gas, or Nitrogen, in English, and Azote, in French, is one of the elements in the periodic table of elements, which is known by the chemical symbol N and atomic number 7. Nitrogen is a gas, nonmetal, colorless, odorless, tasteless, two atoms that occupies about four fifths of the earth’s atmosphere, which is about 78%. This element is one of the main elements in living tissues and important compounds such as ammonia, nitric acid and cyanides are made from this element.
- What is liquid nitrogen?
Liquid nitrogen, abbreviated as LN2, is the liquid form of pure nitrogen gas. Liquid nitrogen is made from the distillation of air and is typically made in companies and factories that produce CO2 and O2 gases. Liquid nitrogen is 20% lighter than water by volume.
- What is nitrogen gas?
Almost most people know the definition of nitrogen gas. Nitrogen is a non-metallic element in the 15th group of the periodic table. This gas is one of the inactive gases that has 5 electrons in the atmosphere. And it is known as a gas that hardly dissolves in water because it does not ignite and cannot interact with other gases or elements. It is also one of the groups of non-metallic gases. The atomic number of this element is 7 and it has an atomic weight of 14. The melting temperature of this element is about -209.degrees Celsius and its boiling point is -195.8 degrees Celsius.
- The cost of nitrogen gas
The price of each nitrogen gas in various industrial and laboratory types depends on the amount of volume of the cylinder or capsule, the type of nitrogen used, the method of transportation, the method of delivering nitrogen gas, its purity, its quality and other things.
What is the use of nitrogen gas?
Nitrogen in food storage
With the help of carbon dioxide, nitrogen gas can create atmospheric atmosphere around food items that are less in contact with oxygen than before and increase their shelf life and thus make them stay fresh.
Nitrogen in diving
Some breathing gases, which are made from a combination of oxygen and nitrogen, can be used for diving in shallow water. For deep water, instead of nitrogen, they use a combination of helium gas with oxygen.
Nitrogen in pharmaceuticals
Nitrogen is widely used in the pharmaceutical industry. Basically, this substance is used in most medicinal substances.
Application of nitrogen in the construction industry
Liquid nitrogen is used to build tunnels and freeze wet lands. Nitrogen cooling feature is also used to make connections.
Application of nitrogen in electronic industries
Nitrogen is used in computer processors to prevent them from overheating and being damaged. Nitrogen is used for fire extinguishing system in technology equipment. They also use nitrogen gas to detect X-rays.
Application of nitrogen in steel industries
Nitrogen is also used in the steel industry. Nitrogen is used as a cleaning gas in this industry. Other different uses of this gas in the industry are oxidation prevention and protective gas in welding. This gas is used to create an inert atmosphere in the casting of steel and other molten metals.
What is the use of nitrogen gas?
Nitrogen gas is used in small quantities to fill some different lamps, and in incandescent lamps, argon is used as a cheaper alternative to nitrogen.
- Nitrogen is used to store explosives and flammable petroleum products.
- Nitrogen gas is used in making various catalysts.
- Nitrogen gas is used to transport polymer powders.
- Nitrogen gas is used in exhausts.
- The heat generated by fluidized bed reactors is controlled by nitrogen gas.
- Nitrogen gas is used in chemicals, liquid nitrogen is used in storage so that raw materials or final products are protected from problems such as peroxides and environmental pollution by oxygen.
Read more: Nitrogen applications in gas and liquid form
Application of liquid nitrogen in industry
Liquid nitrogen is one of the most useful gases used in the world. In the following text, we mention some of the uses of this product:
- Aviation and aerospace industry
- Energy
- Drinks and snacks
- Health and medicine
- Produce metals
- Oil and gas industry
- Pharmaceuticals and biotechnology
- Purification of
- Welding and making metals
- The price of liquid nitrogen depends on what factors?
Liquid nitrogen comes in a variety of tanks and you should consider what you want to use it for before purchasing. In order to determine the tank you need, you must determine the purpose of buying this product, because choosing the volume of the tank depending on your purpose has a high impact on the price of liquid nitrogen gas. The volume of these tanks is from half a liter to 300 liters and they are used in various industries. As it is clear, the larger the tank, the higher the price of liquid nitrogen gas. In addition to the volume of the tank, the diameter of the opening of the tank also affects the price of this product, because the tanks with a larger opening need to be filled faster and therefore have low prices. Along with other features, the use of the tank has a great impact on its price, and depending on the use and purpose you have, different prices may be offered to you.
- The cost of nitrogen gas
The price of each nitrogen gas in various industrial and laboratory types depends on the amount of volume of the cylinder or capsule, the type of nitrogen used, the method of transportation, the method of delivering nitrogen gas, its purity, its quality and other things.
What is the use of liquid nitrogen?
Liquid nitrogen has many and varied applications, which are due to its cold temperature and low reactivity. Among the most important uses of liquid nitrogen, the following can be mentioned:
- Freezing and using in the transportation of different food items
- Freezing biological samples, such as eggs, sperm and genetic samples of different animals
- Application of cooling in superconductors, vacuum pumps, and other materials and various tools
- Treatment of skin problems by cold therapy
- Protecting materials exposed to liquid oxygen.
- It is used as a source of very dry nitrogen gas.
- Molecular gastronomy preparation of unusual foods and drinks
- Cooling of materials for easy machining or breaking
- Educational projects, such as making liquid nitrogen ice cream, creating nitrogen fog, and the like
- The power of liquid nitrogen
The power of liquid nitrogen is very high and if you do not follow the precautions, you may cause a lot of damage and injury. For example, because it boils quickly, when the liquid phase is transferred to gas, you can quickly create a high pressure. Also, you should not put nitrogen in closed containers because it may burst or explode. Also, by adding a large amount of nitrogen to the air, the amount of oxygen in the air decreases and may cause suffocation and eventually death. Use this type of gas in well-ventilated areas.
Applications of liquid nitrogen in medicine
Liquid nitrogen has many applications in medicine and it is very important. Among these applications, the following can be briefly mentioned:
- To take pictures of body tissues at temperatures below zero degrees to minus 50 degrees Celsius
- To remove warts by rapid injection of liquid nitrogen with painless, fast and no side effects
- To keep sperm and different genes at negative temperatures of 100 degrees Celsius
- To eliminate the presence of oxygen and the possibility of reaction in the environment of detection laboratories
- Nitrous oxide is used as an anesthetic.
- Keeping all kinds of biological samples, genetic samples of animals, keeping egg, sperm and blood samples for many years in a healthy and unchanged manner.
Read more: Nitrogen applications in gas and liquid form
- How is liquid nitrogen produced?
Liquid nitrogen is produced in large volumes by compressing, cooling and expanding air. This process takes the heat in the air and repeats it until the air turns into a liquid, and after that, liquid nitrogen is produced from the compressed gases in the air through distillation.
- Where to buy liquid nitrogen?
You can buy liquid nitrogen from factories, companies that produce liquid nitrogen, which Parsiagaz is one of the best of these companies, in person, by phone, or by placing an order on the website in the quantity you want. Also, when buying liquid nitrogen, be sure to get additional equipment such as cryogenic gloves.
Other uses of nitrogen gas
Nitrogen is an essential component in the aerospace and aviation industry. In this industry, nitrogen is used in wind tunnels, heat furnaces, and autoclaves to help create strong but lightweight materials. Nitrogen is also used as an auxiliary gas in laser cutting.
Due to the ability of nitrogen to create the atmosphere necessary to create sufficient welds on any type of material, nitrogen is used in machine assembly factories along with other welding gases to weld automatic parts, frames and frames, silencers and Other parts are used. In addition, nitrogen is an important safety component in airbags.
Nitrogen is used as a pressurized gas and can help liquids move through pipelines. In addition, nitrogen is used to protect oxygen-sensitive substances and remove volatile organic substances during chemical processes. Since nitrogen is an inert gas, it is used as a covering component to separate products and sensitive process environments from air. In addition, nitrogen is used as a purifying component and to prevent contamination in pipelines and other equipment.
Nitrogen NF is used as a cryogenic mixture to freeze and preserve blood, tissue and other biological samples. In addition, nitrogen is also used during surgeries to remove damaged tissue. Nitrogen is also used as an energy source in medical devices.
Nitrogen is the main cryogenic agent for cooling and freezing food. Because liquid nitrogen has a very low temperature, it is the fastest known freezing method for the production of quick frozen foods (IQF). Nitrogen also plays a key role in reducing spoilage and discoloration and is used in food packaging.
Nitrogen is a carrier and purifying gas in steel production, which is used to prevent oxidation in this process. In addition, nitrogen is a key component in thermal processes.
Nitrogen is an industrial gas that is used as a coating for storage tanks and as a purifier for pipelines. In addition, nitrogen can remove volatile organic compounds (VOC) from chemical processes and wastewater and reduce their emissions.
In the welding of stainless steel pipes, nitrogen is used as a purifying gas. It is also used as an auxiliary gas in laser cutting and improves plasma cutting.