1800 STARGAS (1800 782 742)
Reviewed by Richard Fowles, MSc (Eng) Welding Engineering, Metallurgy and Materials Engineering
Fellow of the Institute of Engineers Australia
Nitrogen – Nitrogen Gas – Nitrogen Gas Bottle – What is Nitrogen – Nitrogen Gas in Tyres
Nitrogen (nitrogen gas) is an odourless, tasteless and colourless gas at standard temperature and pressure.
Nitrogen is the most abundant element in our atmosphere, making up about 78% of the air we breathe.
Nitrogen is one of the fundamental building blocks of life, as it is a key component of essential biological molecules like proteins and DNA.
Nitrogen atoms typically bond with another nitrogen atom forming the N2 nitrogen molecule.
You find nitrogen in many explosives because of the strength of this molecular bond.
At standard temperature and pressure, nitrogen exists as a stable N₂ diatomic gas, with a strong triple bond between its atoms.
Dinitrogen is a diatomic gas, with 2 trivalent-bonded nitrogen atoms and a molecular formula of N2.
Nitrogen symbol is N2. Nitrogen atomic number is 7.
Nitrogen gas is also very versatile.
Nitrogen, supplied in a nitrogen gas bottle, can be used to inflate tyres, replace oxygen in food packaging and purge dangerous gas from enclosed spaces whilst liquid nitrogen can fast freeze food and is even used in some medical procedures.
Nitrogen gas (N2) is supplied in G2 and E2 nitrogen cylinder sizes.
Nitrogen Uses – What is Nitrogen Gas Used For – Industrial Nitrogen Gas Bottles
Nitrogen (nitrogen gas) is a multipurpose gas supplied in a handy nitrogen gas bottle.
Applications include tyre filling, food packaging, gas purging and winemaking.
Nitrogen gas bottle come in industrial grade and food grade purity options.
In the food industry, nitrogen is used in MAP – modified atmosphere packaging – to extend shelf life by displacing oxygen.
Nitrogen is used in various cryogenic processes including preserving biological samples, like human embryos and sperm.
Nitrogen has safety applications including inflation of aircraft tires and in fire suppression systems.
Nitrogen is also used to purge gas in aircraft fuel systems.
Industrial nitrogen gas bottle is used for nitrogen in tyres.
Nitrogen applications in industrial processes includes purging, blanketing, and cooling in manufacturing, electronics, and metal fabrication.
Industrial nitrogen uses also include the production of ammonia (NH3), a colorless gas used in making fertilizers.
Ammonia is also used as a disinfectant.
Laser Welding Machine – Laser Cutting Machine – Laser Cleaning Machine
100% Nitrogen gas or Argon gas are widely used for hand-held laser welding machine, laser cutting machine or laser cleaning machine systems.
The choice between the two gases is dependent on the advice of the equipment supplier and the material being processed.
Nitrogen Gas in Tyres
Industrial nitrogen gas in tyres (tires) is used to fill tyres, in lieu of air. It aids in longer lifer by reducing oxidation.
Pressure retention is also superior, providing better wear and petrol mileage.
Nitrogen (nitrogen gas) in tyres is supplied in G2 and E2 nitrogen gas cylinder sizes.
Industrial Nitrogen is Used for Purging – What is Nitrogen Purging
Nitrogen (nitrogen gas) purging is an industrial procedure used to replace unwanted or hazardous gases with an inert dry gas – nitrogen.
Industrial nitrogen for purging is supplied in G2 and E2 nitrogen gas cylinder sizes.
Nitrogen gas can be used to purge air (oxygen) to reduce oxidation.
It can also be used to purge things like LPG tanks, to make them safe from any possible explosion.
Is Nitrogen Gas Flammable
Nitrogen (nitrogen gas) is not flammable.
Nitrogen will not burn by itself nor support combustion.
Nitrogen, when combined with oxygen as air, will support combustion.
Nitrogen is flammable with oxygen or air, and has a flammable range of from 4.1% to 74.2%, by volume in air.
A mixture of 10% to 65% hydrogen by volume in air will explode if ignited.
Hydrogen will combine with nitrogen, under the proper conditions, to form ammonia.
Density of Nitrogen at STP
Density of nitrogen gas is 1.2506 g/L at 0°C (32°F) at 1 atm.
Nitrogen Properties – Industrial Nitrogen Facts
The following are some of the more important nitrogen properties and industrial nitrogen gas facts:
- Nitrogen melting point is −210.00°C (−346.00 °F)
- Boiling point of nitrogen is −195.795°C (−320.431°F)
- Condensation temperature of nitrogen is −195.795°C (−320.431°F)
- Nitrogen (nitrogen gas) can also be compressed into a liquid without reducing the temperature.
- Nitrogen becomes a frozen solid at -210°C (-346.00°F).
- Nitrogen expansion ratio of nitrogen liquid to gas is 1:694 at 20°C
- Nitrogen gas makes up 78.1% of our atmosphere.
- Nitrogen gas is odourless and colourless
- Nitrogen gas is inert
- Industrial nitrogen is supplied in G2 and E2 nitrogen gas cylinder sizes.
Is Nitrogen Explosive
Nitrogen (nitrogen gas) is not explosive or flammable.
Nitrogen gas is inert and extremely stable.
Where to Buy Nitrogen Gas
This is where to buy a nitrogen gas bottle. We have free next day delivery and great nitrogen gas bottle prices.
Just ring us toll free on 1800 782 742 and order your gas today.
Nitrogen Gas Bottle Sizes – Nitrogen Gas Cylinder Sizes
The smallest nitrogen gas bottle we offer at Stargas is an E2 nitrogen gas bottle sizes which contains ≈ 4.5m3 at (20000 kPa) and a weight of 24.5kg.
In comparison, a G2 nitrogen bottle sizes contain ≈ 9.1m3 at (20,000 kPa) and a weight of 54kg.
Nitrogen bottle sizes (nitrogen cylinder sizes) are steel vessels for storing the compressed nitrogen gas.
The gas contents of nitrogen gas bottle sizes (nitrogen cylinder sizes) are measured in cubic metres (m3).
The nitrogen gas bottle size outlet connection is AS 2473 Type 50.
Larger commercial users have bulk nitrogen (nitrogen gas) tanks.
- G2 nitrogen gas bottle sizes contain ≅ 9.1m3 at (20,000kPa)
- E2 nitrogen gas bottle sizes contain ≅ 4.5m3 at (20000kPa)
Stargas New Customer Offer
$50 Off First Order
Quote offer SG50 when placing your first gas order
Valid 1 November 2025, expiring 31 October 2028
Nitrogen Cylinder Sizes – Nitrogen Gas Cylinder Sizes – Nitrogen Gas Bottle Sizes
Nitrogen gas cylinders are supplied in two nitrogen gas cylinder sizes to meet your needs.
Nitrogen gas cylinder sizes (nitrogen gas bottle sizes) include G2 and E2 nitrogen cylinder sizes.
Nitrogen (nitrogen gas) is inert to virtually all substances at ambient temperatures and conditions.
Nitrogen gas bottle sizes include welding gas cylinder sizes – welding bottle sizes, cylinder capacity & gas bottle dimensions.
| Nitrogen Cylinder Sizes – Nitrogen Gas Cylinder Sizes – Nitrogen Gas Bottle Sizes | ||||
| Size | Height | Diameter | Tare Weight | Nitrogen Cylinder Capacity |
| G2 | 1460 | 230 | 54 kg | 10.2 m3 |
| E2 | 780 | 204 | 24.5 kg | 4.1 m3 |
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Actual nitrogen gas cylinder sizes (nitrogen gas bottle sizes), capacity, dimensions and tare weights may vary by nitrogen gas cylinder manufacturers. Copyright © 2019. Elgas Ltd. |
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Nitrogen Price – Nitrogen Gas Bottle Price – Nitrogen Cylinder Price
Nitrogen gas bottle price or nitrogen gas cylinder price can vary by volume and location. Please contact us for a Fast Online Nitrogen Price Quotation.
Nitrogen Gas Cylinder Sizes – Industrial Nitrogen Gas Bottle Size Hire & Refill
Nitrogen gas cylinder sizes include G2 and E2 sizes (nitrogen gas bottle sizes).
G2 nitrogen gas cylinder sizes contain ≈ 9.1m3 at (20,000kPa).
E2 nitrogen gas cylinder sizes contain ≈ 4.5m3 at (20000kPa).
Get industrial nitrogen gas cylinder sizes (nitrogen gas bottle sizes) hire and nitrogen gas refill in all nitrogen gas cylinder sizes.
Is Nitrogen Poisonous
Nitrogen (nitrogen gas) is not poisonous. Whilst not poisonous, pure nitrogen is an asphyxiant, due to the lack of oxygen.
Contact with liquid nitrogen can cause cold burns and frostbite.
Chemical Equation for Nitrogen Gas – Is Nitrogen Gas a Compound
The chemical formula and elemental symbol of the Nitrogen is N.
The molecular formula for Nitrogen gas is N2.
So, nitrogen (nitrogen gas) is a single element and not a compound.
Nitrogen Composition in Air
Nitrogen composition in air is 78.1% of our atmosphere.
Nitrogen (nitrogen gas) is the most common gas in air, followed by oxygen at 20.95%.
The rest are all less than 1%, with argon at 0.93%, carbon dioxide at 0.04% and just small traces of other gases.
Where Do We Get Industrial Nitrogen From – Air Separation Unit (ASU)
We get industrial nitrogen from the air around us.
Air separation plants use cryogenic distillation to isolate the nitrogen (nitrogen gas).
The process that chills the air to extremely low temperatures so the component gases (nitrogen, oxygen, argon, xenon, neon and krypton) can be separated.
An air separation unit (ASU) is a major industrial plant for producing large commercial quantities of nitrogen (see accompanying image).
There are other processes that can be used including membrane based generators and pressure swing absorption (PSA) generators.
Both of these techniques use fairly small sized equipment that can be used as on-site nitrogen generators.
Industrial Nitrogen Gas Bottle Suppliers
Get industrial nitrogen gas bottle supply for tyre inflation, purging, food packaging, blanketing, winemaking, and many other applications that require inert gas.
Our food grade quality nitrogen gas, in convenient nitrogen gas bottle sizes, is also used to mix with Carbon Dioxide for beer dispensing.
Nitrogen Gas Cylinder Pressure Bar or kPa – Nitrogen Regulator
Nitrogen gas cylinder pressure in bar is 163 bar – 200 bar.
The gauge pressure: 16,300kPa – 20,000kPa.
A nitrogen (nitrogen gas) regulator is used to reduce the nitrogen gas cylinder pressure bar to make it practical and safe to use
Food Applications for Nitrogen:
Nitrogen (nitrogen gas) is mixed with Carbon Dioxide for beer dispensing.
Certain foods packages are filled with nitrogen gas to prevent oxidation.
Industrial Nitrogen Gas Bottle Applications:
Industrial nitrogen gas bottles are used for blanketing and purging applications to displace or dilute all unwanted gas or vapour.
Industrial nitrogen gas bottle is also widely used for reasons of safety and the prevention of product degradation in the chemicals and petroleum industry.
Other applications for an industrial nitrogen gas bottle include:
- Inerting reactors and storage tanks with industrial nitrogen (nitrogen gas)
- Purging vessels and pipelines with industrial nitrogen gas
- Sparging
- Pressure transfer of liquids
- Shielding or assist gas for plasma cutting aluminium and stainless steel, and as an assist gas for laser cutting
- Pressurising accumulators for batch-testing applications
- Industrial nitrogen gas bottle tyre inflation: helps to extend tyre life and prevent tyre bursts
Nitrogen is a gas
Nitrogen is a gas at standard temperature and pressure, with a boiling point of -195.795°C, being the most abundant gas in our atmosphere constituting about 78% of the Earth’s atmosphere.
It is a colourless, odourless, and tasteless gas, but can also be found in liquid or solid forms when at very low temperatures.
State of matter: Nitrogen is a gas under normal conditions, except when cooled to extremely low temperatures, it can be a liquid or a solid.
Nitrogen is a non-reactive gas, unlike the highly reactive oxygen that is also in the atmosphere.
What is nitrogen?
Nitrogen (N) is a colourless, odourless, and tasteless element that makes up about 78% of Earth’s atmosphere and is essential for life, forming key components of proteins and nucleic acids.
It is a non-reactive gas at standard conditions but can be converted into other forms like liquid nitrogen for cooling or through compounds in fertilizers for plant growth.
Nitrogen gas (N2) is the primary component of Earth’s atmosphere.
It is a relatively unreactive gas at room temperature, which makes it useful for creating inert environments in commercial processes.
Nitrogen is a fundamental building block for all living organisms, found in DNA, RNA, and proteins.
It has an atomic number of 7 and nitrogen can exist as a gas, a liquid (liquid nitrogen), and a solid.
It is used to create inert atmospheres for processes like food packaging, welding, electronics manufacturing, fire suppression, and to pressurize aircraft tires.
Nitrogen is essential for plant growth, and it is a key component of fertilizers to help crops grow.
Liquid nitrogen is used as a cryogenic refrigerant to freeze and preserve biological samples, in cryotherapy, and in reproductive technologies.
Nitrogen in tyres
Nitrogen-inflated tyres have the advantage that nitrogen gas does not support moisture or combustion.
Nitrogen improves tyre pressure stability, reduces moisture-induced variability and corrosion, and slows rubber aging.
Nitrogen-filled tyres are less prone to blowouts and punctures.
The stable tyre pressure reduces the likelihood of sudden loss of pressure, ensuring a safer driving experience, especially at high speeds or during extreme weather conditions.
Compared to ambient air, which contains approximately 78% nitrogen, 21% oxygen, plus miscellaneous trace gases, pure nitrogen is a non-flammable inert gas.
Nitrogen Gas Formula
The chemical formula for nitrogen gas is N₂.
This indicates that a molecule of nitrogen gas consists of two nitrogen atoms covalently bonded together by a strong triple bond.
Molecular Composition: Two nitrogen atoms (N) bonded together with a strong triple bond
Nitrogen Colour - Colour of Nitrogen Cylinder - Nitrogen Bottle Colour - Nitrogen Gas Cylinder Colour - Nitrogen Cylinder Colour Code - Nitrogen Gas Colour Code - What Colour is Nitrogen Cylinder
Nitrogen is a colourless odorless, and tasteless gas at standard temperature and pressure.
Nitrogen becomes a liquid when it is cooled to a temperature below its boiling point, which is approximately −196 °C (-321 °F) at normal atmospheric pressure.
Nitrogen becomes a solid when its temperature is lowered below its freezing point, which is -210 °C (-346 °F) at standard atmospheric pressure.
While colourless under normal conditions, solid nitrogen can appear white at low temperatures, when a solid.
In Australia, nitrogen gas cylinders are Pewter coloured, as shown.
Nitrogen Cylinder Sizes Chart - Nitrogen Gas Cylinder Sizes and Volumes - Nitrogen Tank Size Chart - Nitrogen Gas Cylinder Size Chart
Nitrogen Bottle Sizes Chart – Nitrogen Cylinder Sizes Chart
| Nitrogen Bottle Sizes Chart – Nitrogen Cylinder Sizes Chart – Nitrogen Bottle | ||||
| Size | Height | Diameter | Tare Weight | Nitrogen Cylinder Capacity |
| G2 size nitrogen bottle | 1460 | 230 | 54 kg | 10.2 m3 |
| E2 size nitrogen bottle | 780 | 204 | 24.5 kg | 4.1 m3 |
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Actual nitrogen bottle sizes (nitrogen gas bottle sizes), nitrogen bottle capacity, nitrogen cylinder dimensions and tare weights may vary by nitrogen bottle manufacturers.
For reference, our compressed gas cylinder sizes letter codes are the same as BOC gas bottle sizes codes (BOC cylinder sizes codes).
Copyright © 2019. Elgas Ltd.
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