Where to buy liquid nitrogen?

In this brief article, we will answer the question, “Where to buy liquid nitrogen?” and provide information on what is dewar, how to buy and fill tanks with them, tips to use liquid nitrogen as well as its uses.

Where to buy liquid nitrogen?

Liquid nitrogen can be bought online. Local universities might contain them. Apart from this, you can also ask local suppliers or purchase them online too. Liquid nitrogen is distributed by companies like Praxair or Airgas.

You can use store locators to check whether they are available around you. You can also search around the website to obtain more information on liquid nitrogen.

You might even be able to locate liquid nitrogen in the physics or chemistry departments of universities. 

Sometimes, these departments might specifically have phone numbers present to contact them. Apart from this, they might even have an online order form that you can fill up to obtain nitrogen.

You can also enquire about the physics or chemistry department head for more information. If the departments do not have a number, you can contact the main office of the department too. Many departments can have a phone number on their website.

You can also enquire about liquid nitrogen to certain individuals who commonly use it. Some individuals who commonly use liquid nitrogen are doctors, welders, and farmers. They might not directly sell liquid nitrogen to you but they might let you know where you can purchase them.

What is a dewar?

A dewar is a metal container that is used to carry liquid nitrogen. If you do not have a dewar with you, make sure to purchase them.

Dewars are specifically designed to keep liquid nitrogen safe and free from any damage. It can also help to release pressure which can prevent gasses from bursting.

Dewars can hold around 3 to 50 liters. Avoid storing them in fully-sealed containers as liquid nitrogen is likely to burst under pressure.

Where can you buy dewars?

Dewars can be bought from local suppliers. If you have figured out the shops that sell dewars, you can frequent the same shops to buy dewars too. Ask them the size or prices for selling dewars too.

The price of a dewar can vary depending on its size. If you buy liquid nitrogen occasionally, you can rent dewar for a few days. Stores that sell liquid nitrogen might allow you to rent them too.

Apart from this, check whether you can buy a dewar online. Many retailers like Amazon or eBay might sell dewars too. Make sure to check the ratings of dewar online before purchasing them. This can ensure it is of good quality.

If you are planning to transport Dewar, you can check whether there are appropriate means to transport them. You can also ask the local supplier to help deliver them back to your house.

Vehicles can have the ability to store the dewar upright. It can also have sufficient ventilation to ensure that dewars are transported safely.

How to fill a tank with local nitrogen?

Filling a tank with liquid nitrogen is not an easy process. You can ask a professional to do it for you. If you have delivery personnel delivering a dewar to you, they might help in filling the tank for you.

Proper safety and training procedures have to be followed before a tank would be filled with liquid nitrogen. Make sure to handle the dewar safely once it has been filled up by professionals.

If the dewar is being transported after it is filled with liquid nitrogen, it is better to be safe. Transportation has to be done in a well-ventilated vehicle. Apart from this, wear safety goggles and gloves to be extra safe.

What are some tips to keep in mind while handling liquid nitrogen?

  • Wear safety equipment like goggles and gloves while handling liquid nitrogen.
  • Check your local and national laws before you plan to transport liquid nitrogen. This is because liquid nitrogen can be a hazardous material.
  • If Liquid nitrogen is spread in the air, it can make it difficult to breathe. So make sure to keep them in a well-ventilated space.
  • If your skin comes into contact with liquid nitrogen, you might develop burns. It can cause a burning sensation in the eyes too. So be careful while using them.

What are some uses of liquid nitrogen?

Liquid nitrogen is often used to transport foods. It can be used for cryogenic preservation of eggs, genetic samples, or sperms. It can be used as a coolant for vacuum pumps or superconductors.

Liquid nitrogen can help in protecting materials from oxygen exposure. It can be used in many science projects as well.


In this brief article, we have answered the question, “Where to buy liquid nitrogen?” and provided information on what is dewar, how to buy and fill tanks with them, tips to use liquid nitrogen as well as its uses.



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