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Nitrogen Gas | What is Nitrogen? | N2
Sepehr Gas Kavian: +982146835980, +982146837072 and +989022734708
Nitrogen is a chemical element with the symbol N and atomic number 7. It forms a diatomic nonmetal, colorless, odorless, and tasteless gas (N2),
which makes up about 78% of Earth’s atmosphere.
N2 gas is classified as an inert gas because it does not readily react with other elements. This property makes it useful in a variety of applications. For example, nitrogen gas is used to purge oxygen from tanks and pipelines to prevent fires and explosions. It is also used to preserve food by preventing spoilage caused by bacteria.
It also can be liquefied by cooling it to very low temperatures. Liquid nitrogen is a cryogenic liquid, which means that it is extremely cold. It is used in a variety of applications, such as freezing food and preserving biological samples
Nitrogen is essential for life and is found in amino acids, the building blocks of proteins, and in nucleic acids, such as DNA and RNA. It is also an important industrial gas, used in the production of fertilizers, explosives, and plastics.
Properties
Here are some of the key properties of nitrogen:
- Symbol: N
- Atomic number: 7
- Atomic weight: 14.0067 u
- molecular formula: N2
- Melting point: -210.01 °C (-345.6 °F)
- Boiling point: -195.79 °C (-320.8 °F)
- Density: 1.25 g/L
Uses
N2, a colorless, odorless gas, is essential for life and industry. Here are some of its important uses:
- Food Industry: N2 gas is used to package food because it prevents spoilage by oxidation, mold, or insects. It also helps to maintain freshness by slowing down the growth of bacteria.
- Fertilizers: N2 is a major component of fertilizers, which are essential for plant growth.
- Medicine: Liquid N2 is used for cryogenic surgery to freeze and destroy abnormal tissues. It is also used to preserve blood, bone marrow, tissue, sperm, and eggs.
- Electronics Industry: N2 gas is used to create an inert atmosphere during the production of transistors and other electronic components. This prevents oxidation and contamination.
- Metal Industry: N2 gas is used to prevent oxidation during welding, soldering, and brazing.
- Chemical Industry: Nitrogen is used in the production of a variety of chemicals, including ammonia, nitric acid, nylon, and explosives.
- Plastics and Rubber Industry: N2 gas is used as a blowing agent to create foams in plastics and rubber.
- Safety: N2 gas is used to inert flammable materials and prevent explosions. For example, it is used to purge pipelines before maintenance.
Hazards and safety of Nitrogen
N2 itself is not inherently toxic, but it can cause harm through several mechanisms:
- Asphyxiation: N2 gas is non-toxic, but it can displace Oxygen in the air. If you breathe in air with a low oxygen content, you can suffocate. This is a particular hazard in confined spaces where liquid nitrogen is used, as the nitrogen gas can quickly displace all the oxygen in the air.
- Cold Burns: Liquid nitrogen is extremely cold (-195.79 °C), and contact with it can cause severe cold burns or frostbite.
- Rapid Expansion: Liquid nitrogen expands greatly (by about 695 times) when it vaporizes. This rapid expansion can cause a pressure buildup that can rupture containers or cause them to explode.
Here are some safety precautions to take when working with N2:
- Ensure adequate ventilation: When working with liquid N2, always ensure that there is adequate ventilation in the area. This will help to prevent the buildup of nitrogen gas and reduce the risk of asphyxiation.
- Wear appropriate Personal Protective Equipment (PPE): Wear appropriate personal protective equipment (PPE) when working with liquid N2. This includes gloves, safety glasses, and a face shield.
- Be aware of your surroundings: Be aware of your surroundings and the people around you when working with liquid N2. Let others know what you are doing and the potential hazards involved.
- Never store liquid nitrogen in a closed container: Liquid N2 should always be stored in a vented container to prevent pressure buildup.
- Training: Workers who handle nitrogen should be properly trained on the hazards of nitrogen and safe handling procedures.
By following these safety precautions, you can help to prevent accidents and injuries when working with N2.
Provide and supply
N2 gas is one of the most abundant elements on Earth, making up about 78% of the atmosphere. It’s a colorless, odorless, and inert gas, meaning it doesn’t readily react with other elements. Because of these properties, nitrogen gas is used in a wide variety of industrial and commercial applications.
Here are some of the common ways N2 gas is supplied:
- Cylinders:Nitrogen gas can be purchased in compressed gas cylinders in various sizes. This is a popular option for small-scale applications or when a continuous supply of gas is not required.
- Bulk tanks:For larger-scale applications, nitrogen gas can be supplied in bulk tanks. These tanks are typically filled by a supplier and delivered to the customer’s location.
- On-site generation:Some businesses may choose to generate their own nitrogen gas on-site using an air separation unit (ASU). ASUs separate the components of air (N2, oxygen, and argon) using a process of cryogenic distillation. This can be a cost-effective option for businesses that use a large amount of nitrogen gas.
The type of nitrogen gas supply that is right for you will depend on your specific needs, such as the volume of gas you require, the purity of the gas, and your budget.
Sepehr Gas Kavian Company – with ISO17025 certificate and standard department reference laboratory – provides the highest quality of this gas in various volumes and grades for customers. This company sells nitrogen gas in the following volumes and grades in carbon steel cylinders:
10 liters in grades 4.5, 5.2 and 5.5 with a pressure of 60-70 bar
20 liters in 4.5, 5.2 and 5.5 grades with 100 bar pressure
40 liters in grades 4.5, 5.2 and 5.5 with a pressure of 10+140 bar
50 liters in grades 4.5, 5.2, 5.5 and 6 with a pressure of 10+180 bar
To buy nitrogen gas and other gases such as argon, helium, Hydrogen, etc., please contact the sales experts via the following numbers:
+982146835980, +982146837072 and +989022734708
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