In many different industries, nitrogen is used in liquid form; in this state it has the greatest cooling capacity. However, in order to remain liquid, the cryogenic liquid must be stored at -196°C. If the temperature rises, it will lose its liquid state. Liquid nitrogen is an important part of a wide range of industries, especially in scientific research, medical applications and food preservation. Proper storage of liquid nitrogen is essential to ensure safety and efficiency. Let’s learn about liquid nitrogen storage solutions and equipment, with a focus on liquid nitrogen storage products.

Key Features of High Quality Liquid Nitrogen Tanks

Consider the following features when choosing a liquid nitrogen tank for your laboratory:
Vacuum Insulation: ensures minimal heat transfer to maintain the low temperatures required for liquid nitrogen storage.
Durable construction: made of high-strength materials such as stainless steel or aluminum to withstand the rigors of cryogenic storage.
Safety Valve: Equipped with a pressure relief valve to safely release any excessive pressure.
User-friendly design: Handles, wheels and ergonomic design for easy transportation and handling in the lab.
Multiple Sizes: Available in a variety of sizes to meet different laboratory needs, from small portable Dewar’s bottles to large stationary tanks.

How to handle liquid nitrogen safely?

Safety is critical when handling liquid nitrogen. Follow the tips below to ensure a safe environment:
Wear personal protective equipment (PPE): Always use cryogenic gloves, face masks and lab coats to prevent frostbite and frostbite.
Ensure proper ventilation: Prevent the buildup of nitrogen, which can displace oxygen and pose an asphyxiation hazard.
Handle with care: Use proper lifting techniques and equipment when moving liquid nitrogen tanks to avoid accidents.
Correct Storage: Store the tank upright in a cool, dry place away from heat sources and direct sunlight.
Training: Ensure that all personnel handling liquid nitrogen are trained in the safe use of liquid nitrogen and emergency procedures.

The importance of safe liquid nitrogen storage

As with all other liquefied gases, safe storage is essential for the production, preservation and application of liquid nitrogen. The following are the main reasons why liquid nitrogen users invest in cryogenic vacuum insulated storage tanks and associated vacuum insulated cryogenic infrastructure:
There are several safety risks associated with liquid nitrogen storage:

1. Pressure build-up in the tank or vessel which can lead to an explosion. If a cryogenic liquid warms up due to poor insulation, it can become gaseous. 1 liter of liquid nitrogen expands approximately 694 times in volume when it becomes gaseous at room temperature and atmospheric pressure. If tanks or closed containers are used to store liquid nitrogen, they are not large enough to contain the gas. Therefore, the gas must be vented to prevent overpressurization and possible explosion.
2. Economic losses: Leaking or poorly insulated liquid nitrogen storage tanks or dewars are not only dangerous but also costly. If the infrastructure is leaking or insufficiently insulated, losses of liquid nitrogen can be as high as tens of liters per day. If the tanks are large, losses may not be significant, but when smaller containers are used, there will soon be no surplus.

Conclusion

Scitek specializes in the development of advanced liquid nitrogen cryogenic infrastructures and is committed to other fields. All of our systems are designed to meet the specific needs of industries as diverse as healthcare, the food industry and scientific research. At Scitek, we are not only committed to meeting the needs of our customers, but also to raising the bar in cryogenics. It’s all about cryogenics!