Skip to Main Content
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Careers
  • News & Media
  • Sign in | Register
  • BOC Logo BOC Logo
  • Industrial Gases
    Ireland

  • Home - Industrial Gases
  • Shop
      • Balloon Gas
      • Helium Gas
      • Fuel Gas
      • Welding Gas
      • Purging Gas
      • Refrigerant Gas
      • Speciality Gas
      • Healthcare Gas
      • Food Preservation Gas
      • Equipment & Accessories
      • PPE & Workwear
      • Healthcare
  • Industries
      • Aquaculture
      • Chemicals
      • Construction & Infrastructure
      • Demolition & Dismantling
      • Electronics
      • Emergency Services
      • Energy
      • Environment
      • Food & Beverage
      • Glass
      • Healthcare
      • Hospitality
      • Manufacturing
      • Cryopreservation
      • Metal Production & Treatment
      • Agriculture
      • Pharma & biotechnology
      • Refining
      • Refrigeration & Air Conditioning
      • Plastics & rubber
      • Universities & Research
      • Water & Wastewater Treatment
  • Processes
      • Water & Wastewater Treatment Processes
      • Petrochemical Processing & Refining
      • Pharma & Biotechnology Processes
      • Process Chemistry
      • Manufacturing Processes
      • CRYOCLEAN CO2 Cleaning Solutions
      • Refrigeration & Air Conditioning Processes
      • Food Freezing & Chilling
      • Inerting, Purging & Blanketing
      • Controlled & Modified Atmospheres
      • Double Glazing
      • Glass Processing
      • Heat Treatment
      • Plastic & Rubber Processing
      • Cryobank Cryogenic Biostorage
  • Products & Supply
      • Industrial Gases
      • Bulk Industrial Gases
      • Refrigerant Gases
      • Drinks Dispense Gases
      • Balloon Gas & Equipment
      • Speciality Gases
      • Speciality Gases Equipment
      • Dry Ice
      • Plastic & Rubber Solutions
      • LINDOFLAMM Special Burners
      • Glass Processing Products
      • Sulphur Recovery Burner Technology (SUREburner)
      • Pharmaceutical Products
      • Food Preservation Products
      • Industrial Products
      • Industrial Catalogue
      • Safety Products (PPE)
      • Cryogenic Equipment & Storage Vessels
      • Packaged Chemicals
      • Healthcare Equipment
      • Helium Gas
      • Gas Supply Options
      • Gas Cylinder Innovation
      • Gas cylinder tracking
      • Products and Services A - Z
  • Services
      • Account Services
      • Customer Engineering Services
      • Healthcare Services
      • Whole Body Mobile Cryotherapy
      • On-Site Gas Generation
      • Refrigerant Services
      • Risk Management Services
      • Safety Training
  • Health & Safety
      • Environmental Information
      • Gas Safety
      • Process Safety
      • Product Fact Sheets
      • Putting Safety, Health & the Environment First
      • REACH Legislation
      • Safety Data Sheets
      • Safety Services
      • Workplace Safety
  • How to Buy
      • Buy Gas & Equipment Online
      • BOC Shop Mobile App
      • Placing an Order
      • Store Finder
      • Opening a BOC Account
      • Manage Your Account Online
      • Request a Catalogue
      • BOC Charges and Payment Methods
      • Delivery Options
      • Supply Terms & Conditions
      • Safety Products Catalogue
  • Contact & Support
      • In An Emergency
      • Customer Service Centre
      • Email Us
      • Frequently Asked Questions
      • Feedback
      • Technical Advice & Resources
  • Blog
  •  
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Careers
  • News & Media
  • Sign in | Register
  • Products & Supply
  • Industrial Gases
  • Bulk Industrial Gases
    • Liquid Nitrogen
    • Liquid Oxygen
    • Liquid Argon
    • Liquid Carbon Dioxide
    • Bulk Hydrogen
    • Bulk Liquid Propane (LPG)
  • Refrigerant Gases
  • Drinks Dispense Gases
  • Balloon Gas & Equipment
  • Speciality Gases
  • Speciality Gases Equipment
  • Dry Ice
  • Plastic & Rubber Solutions
  • LINDOFLAMM Special Burners
  • Glass Processing Products
  • Sulphur Recovery Burner Technology (SUREburner)
  • Pharmaceutical Products
  • Food Preservation Products
  • Industrial Products
  • Industrial Catalogue
  • Safety Products (PPE)
  • Cryogenic Equipment & Storage Vessels
  • Packaged Chemicals
  • Healthcare Equipment
  • Helium Gas
  • Gas Supply Options
  • Gas Cylinder Innovation
  • Gas cylinder tracking
  • Products and Services A - Z
  • Products & Supply
  • Bulk Industrial Gases
  • Liquid Nitrogen

Liquid Nitrogen Liquid nitrogen is produced in large quantities at air separation plants which liquefy and distil air into its constituent parts: nitrogen, oxygen and argon.

It is delivered to our customers by cryogenic tankers, into onsite storage, for use in high-volume customer applications.

It is stored as a cryogenic liquid in a vacuum-insulated vessel which can provide several days' supply and be used on demand as either a liquid or gas.

Features

  • Refrigerated liquefied gas
  • Boiling point -196°C
  • Gas/vapour heavier than air
  • Odourless, colourless and non toxic
  • Chemically inert at ambient temperatures

Specification

  • Nitrogen 99.999%
  • Oxygen <5vpm
  • Moisture <2vpm
  • Argon is included in the nitrogen

Application and use

In its liquid form nitrogen is used as a cryogen for many applications where very low temperatures or rapid temperature reduction is required.

The inert property of gaseous nitrogen enables it to be used for applications where a substance needs to be protected from oxidation or combustion by atmospheric air, or from contamination by moisture.

Click here for more information about Medical Liquid Nitrogen

Some common applications where nitrogen is used are:

   
Artificial Insemination Nitrogen is often used for the storage of semen samples for artificial insemination of cattle.
Blanketing and inerting Nitrogen is used to maintain a dry inert atmosphere over chemicals during storage, reaction or processing.
Controlled atmospheres The atmosphere and ambient temperature surrounding naturally respiring products such as fruit is actively controlled to provide optimum conditions for long-term storage
Electronics Used in the inerting of printed circuit board reflow and wave ovens, to prevent oxidation and facilitate the use of weaker fluxes which decompose more easily without leaving a residue
Food freezing/chilling Liquid nitrogen freezes food quickly, producing a higher-quality product compared to to conventional refrigeration
Food inerting Used in brewing, soft drinks and wine-making industries to exclude air from the product and de-aerate water.
Food packaging Used in modified atmosphere packaging, liquid nitrogen can increase the shelf-life without the need for vacuum-packing, artificial preservatives or freezing
Freeze-drying In the freeze-drying process, materials dissolved in water or organic solvents are frozen into particles or droplets. A vacuum is applied to the freezing chamber along with a controlled amount of heat sufficient to drive off moisture by sublimation
Glass Nitrogen and hydrogen are used in the float glass process for manufacturing flat glass. In this process perfectly flat glass with a very high quality is achieved by floating liquid glass on a bath of molten tin
Heat treatment Pure nitrogen is used to protect some of the most reactive metals during heat treatment. These metals readily form a protective oxide surface layer from the small amount of oxygen in the nitrogen and need no further protection
Lasers Nitrogen is used as an assist gas for laser cutting of stainless steel, aluminium and non-metallic materials
Metals Nitrogen is used in iron and steelworks applications for degassing and metal-stirring, purging, cooling, slag splashing, gas knives and as a carrier gas for injecting de-sulphurising compounds. It is also used for aluminium-extrusion inerting
Pipe-freezing Repairs can be made to a pipe containing a liquid by using liquid nitrogen to freeze a plug of liquid on each side of the section of pipe to be opened
Purging Applications include inerting reactors and storage tanks, purging vessels and pipelines of flammable or toxic gases and vapours, and the sparging and pressure transfer of liquids
Shrink-fitting Liquid nitrogen is used to shrink components so they are small enough to be inserted into another component
Sample storage Liquid Nitrogen can be used to store medical or research samples such as blood, plasma and semen – safely
Related Links
  • Liquid nitrogen safety data sheet
  • Liquid nitrogen product fact sheet
  • Supply options

Got a question, want to buy?

Email Us icon Email us
Telephone Us icon Call us on 1890 355 255 (Int: +353 1409 1800)
Safety Products Online

Browse our online catalogue for a wide range of PPE and workplace safety products.

View Safety Products

    • Facebook
    • Twitter
    • Linked in
    • YouTube
    • BOC Blog
    • Terms of Use
    • Legal Notice
    • Privacy Statement
    • Cookies Policy
    • Accessibility
    • Feedback
    • About BOC
    • Brexit Statement
  • © Copyright BOC 2019

BOC websites use cookies. By continuing to use this website, you are agreeing to our use of cookies. Our Cookies Policy provides more information about cookies and how to manage or disable them

You can read our full Cookies Policy by clicking here.

You must check the "I accept cookies from BOC Sites" box to accept.
find out more