Liquid Nitrogen Tank

Liquid Nitrogen Tank

Exploring the Versatility of Liquid Nitrogen Tanks: A Comprehensive Guide


Liquid nitrogen, a colorless and odorless substance, has gained significant popularity across various industries due to its extremely low temperature and unique properties. It finds extensive use in scientific research, medical applications, food preservation, and more. To effectively store and transport this versatile substance, liquid nitrogen tanks play a crucial role. In this article, we will delve into the world of liquid nitrogen tanks, their features, advantages, safety considerations, and frequently asked questions.

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Liquid Nitrogen

Liquid nitrogen is a cryogenic fluid that exists at an incredibly low temperature of -196 degrees Celsius (-321 degrees Fahrenheit). At such temperatures, it becomes a liquid with a variety of useful applications due to its ability to rapidly freeze materials.

Liquid nitrogen is used in a variety of applications, including:

    • Cooling medical equipment
    • Creating fog effects in movies and theater
    • Freezing food
    • Welding
    • Research

Liquid Nitrogen vs. Dry Ice

While both liquid nitrogen and dry ice are popular cryogenic substances, they differ in various aspects. Liquid nitrogen, being a liquid, has the advantage of direct contact cooling and offers a greater cooling capacity. Dry ice, on the other hand, is solid carbon dioxide and is commonly used for transportation and storage of perishable items. Each substance has its unique applications, and the choice depends on the specific requirements.

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Frozen Treats Made with Liquid Nitrogen

One of the most exciting applications of liquid nitrogen is in the culinary world, where it is used to create captivating frozen treats. By rapidly freezing the mixture, liquid nitrogen imparts a smooth and creamy texture to ice creams, sorbets, and other frozen delights. The instant freezing process ensures smaller ice crystals, resulting in a delectable treat with an unparalleled consistency.

Dragon’s Breath

Dragon’s Breath, is a novelty dessert that combines liquid nitrogen and edible ingredients, creating an enchanting experience. Dragon’s Breath produces small puffs of vapor that resemble a dragon’s breath when consumed, creating a visual spectacle. This frozen treat exemplifies the exciting possibilities offered by liquid nitrogen, pushing the boundaries of culinary innovation. From ice cream to frozen cocktails, liquid nitrogen opens up a whole new realm of creativity for those passionate about gastronomy.

Liquid Nitrogen Storage Tanks

Liquid nitrogen storage tanks are specifically designed to safely store and transport liquid nitrogen. These tanks are constructed using high-quality materials that can withstand the extremely low temperatures and pressure associated with liquid nitrogen. They come in different sizes and designs to cater to various needs and storage capacities.

Liquid Nitrogen Tank Sizes

Liquid nitrogen tanks are available in different sizes, ranging from small portable containers to large industrial storage tanks. The selection of tank size depends on the intended use and the volume of liquid nitrogen required. Smaller tanks are ideal for laboratory and medical applications, while larger tanks are suitable for industrial-scale operations.

Features and Advantages of Liquid Nitrogen Tanks

Liquid nitrogen tanks are equipped with several features that enhance their usability and safety. Common features include:

  • Insulation: Tanks are insulated to minimize heat transfer and prevent rapid evaporation of liquid nitrogen.
  • Pressure Relief Valves: These valves ensure safe pressure levels within the tank, preventing any potential risks.
  • Vacuum Sealing: Tanks utilize vacuum insulation technology to maintain the low temperature and minimize heat ingress.
  • Secure Lid and Locking Mechanism: Tanks are designed with secure lids and locking mechanisms to prevent accidental spillage.

Advantages of using Liquid Nitrogen Tanks

  • Efficient Storage: Tanks provide a reliable and efficient means of storing liquid nitrogen for extended periods.
  • Versatility: Tanks allow for easy transport and use of liquid nitrogen across diverse industries and applications.
  • Cost-Effective: Properly insulated tanks minimize liquid nitrogen loss, ensuring optimal utilization and cost-effectiveness.

Common Uses of Liquid Nitrogen

Liquid nitrogen finds a wide range of applications in various fields, such as:

  • Scientific Research: Used in cryopreservation, cell storage, and cryogenic experiments.
  • Medicine: Utilized in cryosurgery, dermatology, and biobanking for preserving tissues and cells.
  • Food and Beverage: Employed in the production of frozen foods, cryogenic grinding, and flash freezing.
  • Manufacturing: Used for shrink fitting, metal treatment, and cooling during industrial processes.
  • Automotive and Aerospace: Applied in testing and research, such as cold flow simulations and engine testing.

Accessories for Liquid Nitrogen Tanks

To enhance the functionality and safety of liquid nitrogen tanks, various accessories are available. These include:

Pressure Build-up Controllers

Regulate the pressure within the tank and prevent over-pressurization.

Level Gauges

Provide a visual indication of the remaining liquid nitrogen volume.

Cryogenic Gloves and Protective Gear

Essential for safe handling and transferring of liquid nitrogen.

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Transfer Vessels

Facilitate the transfer of liquid nitrogen from larger tanks to smaller containers.

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Venting caps

These caps allow you to vent the tank of excess vapor.

Neck plugs

These plugs seal the neck of the tank to prevent evaporation.


These carts make it easier to transport liquid nitrogen tanks.

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These small containers can be used to store liquid nitrogen for short periods of time.

Liquid nitrogen sprayers

These are devices that allow you to spray liquid nitrogen. They are useful for creating fog effects or for quickly freezing objects.

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Things to Consider Before Buying a Liquid Nitrogen Tank

Before purchasing a liquid nitrogen tank, consider the following factors:

  • Capacity: Determine the required volume of liquid nitrogen and choose a tank size accordingly.
  • Material Quality: Ensure the tank is made from high-quality materials suitable for cryogenic applications.
  • Safety Features: Check for pressure relief valves, secure lids, and other safety mechanisms.
  • Mobility: Assess whether portability is necessary and choose a tank with suitable handles or wheels.


Liquid Nitrogen Safety

Liquid nitrogen is a cryogenic liquid that has a boiling point of -196 degrees Celsius (-321 degrees Fahrenheit). It is extremely cold and can cause severe burns if it comes into contact with skin. It can also cause asphyxiation if it is inhaled.

Here are some safety precautions that should be taken when working with liquid nitrogen:

  • Always wear appropriate personal protective equipment (PPE), including:
    • A full face shield or goggles
    • Leather or cryogenic gloves
    • Long-sleeved shirt and pants
    • Safety shoes
  • Handle liquid nitrogen in a well-ventilated area.
  • Do not lower your head into a liquid nitrogen vapor cloud.
  • Never trap liquid nitrogen in a container, tubing, or piping.
  • Do not pour liquid nitrogen directly onto skin or into open containers.
  • Use tongs to withdraw objects from liquid nitrogen.
  • If liquid nitrogen spills, flush the area with water to evaporate the nitrogen.
  • If liquid nitrogen comes into contact with skin, immediately flush the area with water for at least 10 minutes.
  • If liquid nitrogen is inhaled, move the person to fresh air and seek medical attention.

Here are some additional safety tips for working with liquid nitrogen:

  • Do not use liquid nitrogen in an enclosed space.
  • Do not use liquid nitrogen near open flames or other sources of ignition.
  • Do not use liquid nitrogen to cool flammable liquids or materials.
  • Do not use liquid nitrogen to create fog or other effects that could be inhaled.

If you are not familiar with the safe handling of liquid nitrogen, it is important to get training from a qualified professional.


What does a liquid nitrogen tank do?

Liquid nitrogen tanks are designed to store and transport liquid nitrogen safely and efficiently.

How long will liquid nitrogen last in a tank?

The duration depends on various factors, including the tank insulation and frequency of use. Typically, liquid nitrogen can last for days to weeks in a well-insulated tank.

Where should you never use liquid nitrogen?

Liquid nitrogen should never be used in confined spaces or areas without proper ventilation due to the risk of oxygen displacement.

Is it safe to touch liquid nitrogen with bare hands?

No, direct contact with liquid nitrogen can cause severe burns and frostbite. Always use appropriate protective gear when handling liquid nitrogen.

What happens if you pour liquid nitrogen into water?

When liquid nitrogen comes into contact with water, it rapidly evaporates, causing the water to freeze and create a cloud of condensed water vapor.


Liquid nitrogen tanks play a vital role in the storage and transportation of this versatile cryogenic substance. They offer efficient storage, portability, and enhanced safety features. By understanding the various aspects of liquid nitrogen tanks, including their sizes, features, advantages, and accessories, one can make an informed decision when choosing the right tank for their specific needs. Remember to prioritize safety precautions when handling liquid nitrogen and always follow the recommended guidelines to ensure a safe working environment.

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