Nitrogen (N2)
Nitrogen is a non-corrosive, inert gas and is compatible with most common metals, provided it is used with equipment suitable for high-pressure applications.
Characteristics:
- Odorless and colorless, non-toxic, does not support combustion
- In high concentrations, it can cause asphyxiation
- Inert, dry, and slightly soluble
Applications:
- Cleaning, protection, inerting (reactors and storage tanks), dilution of unwanted gases or vapors
- Cooling and freezing of food, modified atmosphere packaging, food storage (controlled atmosphere), food inerting
- Chemical and petroleum industry
- Food industry
- Pipeline cleaning
- Rocket propulsion
- Liquid transfer
- Auxiliary gas for laser cutting of stainless steel, aluminum, and non-metallic materials
- Thermal processing to protect against reactive metals
- Electrochemical analysis
- Maintenance of dry and inert atmosphere concerning chemicals during storage, reaction, and processing
- Extension of the lifespan of rubber
- Expansion-contraction of metals.
Liquid nitrogen (-196 °C) reduces the physical dimensions of a material placed in it, allowing it to be connected to other materials and sealed when it returns to normal temperatures and expands
Storage of medical or research samples, such as blood, plasma, and sperm.
