In construction and maintenance of public works, liquid nitrogen is used to temporarily freeze a section of pipe and thus prevent its contents from spilling out when opening it to carry out some work.
It is also used for manufacturing electronic components and as a shielding gas in welding processes.
In laboratories for various fields, it is used to remove solvents or water in a gaseous state using by cold traps.
In medicine, it is used in cryosurgery, subjecting abnormal tissues like tumors or warts to extreme cold for removal. Liquid nitrogen is also essential for the cryopreservation of cell samples, tissues, and organs, both for research and transplantation.
Liquid nitrogen is used to conserve and store semen, both animal and human. This technology is crucial for sperm banks that are used in artificial insemination.
In the food industry, it is used in deep-freezing processes for vegetables and animal products, which enables preservation and transportation. It is also commonly used for making ice cream and cocktails.