Liquid Nitrogen
Supagas supplies liquid nitrogen (LN₂) in a wide range of formats, from portable Dewars to bulk cryogenic tanks. With its extremely low boiling point of –196°C, liquid nitrogen is ideal for applications requiring cooling, freezing, preservation, or controlled atmospheres.
What Is Liquid Nitrogen?
Liquid nitrogen is nitrogen gas that has been cooled and condensed into a liquid state. It is colourless, odourless and inert, making it suitable for applications requiring extreme cold without chemical reactivity.
Liquid nitrogen is valued for its:
Extremely low temperature
Fast cooling and freezing capability
Inert, non-flammable properties
Clean evaporation with no residue
Liquid Nitrogen Applications
Supagas liquid nitrogen is used across a wide range of industries, including:
Industrial & Manufacturing
Shrink fitting and assembly
Metal treatment and cooling
Inerting and purging
Controlled temperature processes
Food & Beverage
Rapid freezing and chilling
Portion control and cryogenic grinding
Cold chain and transport cooling
Scientific & Laboratory
Sample preservation
Cryogenic storage
Research and testing environments
Medical & Healthcare
Cryotherapy
Cryopreservation
Medical and laboratory support applications
Other Commercial Applications
Cold treatment processes
Specialist cooling applications
Safety and Handling of Liquid Nitrogen
Liquid nitrogen is an extremely cold, inert cryogenic liquid and must be handled with care. When used correctly, it is safe and effective across a wide range of industrial, food, scientific and manufacturing applications. Understanding the risks, and how to manage them, is essential.
Extreme Cold (Cryogenic Hazard)
Liquid nitrogen boils at –196°C, which means direct contact can cause severe cold burns or frostbite almost instantly. Even brief exposure to splashes, vapour or cold surfaces can damage skin and eyes.
Key precautions include:
Wearing appropriate cryogenic PPE, including insulated gloves, face shields or safety goggles, long sleeves and closed footwear
Never allowing liquid nitrogen to contact bare skin
Using approved cryogenic containers and transfer equipment only
Asphyxiation Risk
Nitrogen is colourless, odourless and non-toxic — but it displaces oxygen. In enclosed or poorly ventilated spaces, nitrogen vapour can reduce oxygen levels without warning, creating a serious asphyxiation hazard.
To reduce risk:
Always use liquid nitrogen in well-ventilated areas
Never store or dispense in confined spaces without proper controls
Ensure oxygen monitoring is in place where required
Storage & Transport
Liquid nitrogen must be stored and transported in approved cryogenic dewars or tanks designed to manage extreme cold and gas expansion safely.
Safe storage guidelines:
Store upright on stable surfaces
Keep away from heat sources and ignition points
Clearly label containers and restrict access to trained personnel
Training & Procedures
Anyone handling liquid nitrogen should be properly trained and familiar with safe operating procedures, emergency response actions and first aid for cryogenic exposure.
We recommend:
Site-specific risk assessments
Clear operating procedures and signage
Regular equipment inspections and staff refreshers
Speak to the Liquid Nitrogen Specialists
Whether you require liquid nitrogen for food processing, manufacturing, laboratory use or specialist applications, Supagas can help deliver the right LN₂ solution.
Contact Supagas today to discuss supply formats, storage options and ongoing delivery.
Frequently Asked Questions
Industries We Support
What Our Customers Say
Thank you Supagas Somerton for your support of The Salvation Army Thrift Shop in Craigieburn. Your generosity will help keep our Customers, Staff and Volunteers warm this winter.
Melbourne - Mary
Fantastic service from speaking with the sales representative, speaking with the office staff. Delivery driver called before delivery as requested and was pleasant to deal with. Will be recommending to others.
Austyn — Townsville, QLD
Thank you so much. Lisa and the whole team at Supagas , you all went above and beyond and provided the best customer service I have experienced in years. I would highly recommend Supagas Launceston.
Derick — Launceston, TAS
Thank you Supagas Somerton for your support of The Salvation Army Thrift Shop in Craigieburn. Your generosity will help keep our Customers, Staff and Volunteers warm this winter.
Somerton - Allen
Fantastic service from speaking with the sales representative, speaking with the office staff. Delivery driver called before delivery as requested and was pleasant to deal with. Will be recommending to others.
Townsville - Austyn
Great service. We were stuck needing an LPG gas delivery. Our regular supplier was unable to provide the service. These guys arrived on the same day and assisted us after one phone call. They really went out of their way. Highly recommended!!!
Kempsey - Glenn
Supergas Somerton has supplied our gas for years! From great customer service to an easy, no fuss gas refill, we couldn't be happier with the service. Thank you!!
Somerton - Cara
A quick note to thank you for your support throughout this series of MasterChef Australia. It is wonderful to work with businesses that are passionate about what they do and you have been an immense help to us. In the film industry we rely heavily on dependable service from suppliers like you to help us keep to tight schedules and uphold the high quality of the show. So thank you, we very much appreciate your help and look forward to working together again. It has been a pleasure.
MasterChef Australia
Best service for gas in Hervey Bay, friendly and welcoming staff members. I am very thankful for Robyn’s help and knowledge, she saved my annual Christmas bbq. 10/10 customer service. Thank you Robyn and super gas.
Hervey Bay - Madison
I own and run a guest house and ran out of Gas, in winter with guests arriving! I found Supagas to have a professional call centre, quick and helpful. The driver Corey was prompt and efficient and very courteous. Thank you Corey, thank you SupaGas!
Lismore - Tarek
Thank you so much. Lisa and the whole team at Supagas , you all went above and beyond and provided the best customer service I have experienced in years. I would highly recommend Supagas Launceston.
Launceston - Derick
Congratulations LNS on achieving 25 years in business, in that time Jack Thompson Engineering have received prompt, reliable and friendly service and it is no wonder the business continues to grow. Engineered shrink fits made easy with expert assistance – well done to all”
VIC - Jack Thompson
I was planning to mail you today to acknowledge your great service, and I have just posted the review.
You have such great style in terms of service…your belief and confidence in Supagas is evident.
Congratulations. I am in the service industry also, and I know what it takes to complete a job efficiently and create a happy client. You certainly achieved that yesterday.
Juliana Claridge
Supagas made the supply of medical oxygen to my family home a seamless and personal experience. It is a confronting medical undertaking for the uninitiated. Naomi was particularly knowledgeable and guided me through the systems configuration to make the ordering easier than I could have imagined. I’ll use Supagas again and recommend Naomi.
Vincent