How Food-Grade Nitrogen Helps Package The Foods At Your Table

Proper packaging enables food to be bagged and transported long distances without spoiling. Often, food packaging is reliant on nitrogen for preservation purposes. Many foods are packaged with nitrogen inside, including dried fruits and chips. Whether you’re a curious consumer or starting a food packaging business, here’s what you need to know about food-grade nitrogen.

What Is the Benefit of Using Food Grade Nitrogen in Food Packaging?

Bacteria will grow and thrive on organic material when exposed to oxygen. When food is exposed for a long time to oxygen, it will deteriorate quickly. Its color, flavor, scent, and structural integrity will all begin to break down when exposed to oxygen. This means that any piece of food will spoil quickly if it is sealed into a package with oxygen.

When oxygen is eliminated from the package, the growth of bacteria slows down dramatically. To protect the food from spoilage, oxygen is replaced with nitrogen.

What Is Nitrogen Flushing?

Nitrogen flushing is a technique where nitrogen is blasted into a package containing food and oxygen. The nitrogen displaces the oxygen, then the package is sealed with the nitrogen inside.

Is Nitrogen Flushing Safe?

Nitrogen flushing is completely safe. Many foods are packaged this way. Nitrogen is a non-toxic gas that’s already found in the earth’s atmosphere. Nearly 80% of the air that we breathe is nitrogen. This odorless gas does not harm food, is safe to breathe once the package is opened, and prevents food from spoiling when it’s sealed in the bag.

Nitrogen Helps Protect Food In More Ways Than One

In addition to stopping food from going bad, nitrogen does one more thing to protect food when it’s sealed in the package. Delicate foods like chips are easily crushed in transit, but nitrogen creates a pillow inside the package to stop chips from being pulverized.

How to Produce Nitrogen Food Packaging

Generally speaking, there are two ways for food packaging companies to obtain nitrogen. They can either deliver their nitrogen through an outside source (often in cylinders) or generate their nitrogen with an on-site nitrogen generator.

Nitrogen cylinders have many disadvantages over nitrogen generators. Cylinders must be delivered regularly to keep up with production. When supply chain problems occur, cylinders may not be delivered according to the schedule. This can lead to a halt in production, resulting in lost profits. Cylinders can also take up a lot of space. In addition, pressurized cylinders can be dangerous when not properly handled.

Nitrogen generators, by contrast, produce a nearly limitless supply of nitrogen without any of the supply chain considerations that can occur with cylinder delivery. Nitrogen generators take up less space and, unlike pressurized cylinders, do not have the associated risks.

Benefits of an On-Site Nitrogen Generator for Food Packaging

There are many benefits of packaging food with nitrogen from a generator. Here’s what you should consider as you’re trying to decide whether to purchase a nitrogen generator for your food packaging business:

  • Cost-effective. Once the small initial investment is made for purchase and installation, nitrogen generators have very few associated costs. This is very different from nitrogen cylinders, which represent an ongoing cost. In fact, as the business increases production, the amount spent on cylinders also increases, naturally limiting business growth and taking a chunk from the profits that would otherwise be made.
  • Reliable. Compared to nitrogen cylinder delivery, a nitrogen generator is a reliable nitrogen source. Any time your business is dependent upon a third-party provider, you’re subject to whatever problems may affect that third-party provider. In the event that a cylinder delivery is delayed or even canceled, your business will be left searching for a new nitrogen source. By comparison, a nitrogen generator is always available and, if properly maintained, a consistent nitrogen source.
  • Energy-efficient and sustainable. Whereas nitrogen delivery from a third-party provider depends upon fossil fuels to deliver, a nitrogen generator is a clean and energy-efficient way to produce the nitrogen needed on-site.

Need Nitrogen for Your Food Packaging Company? Contact On Site Gas

On Site Gas is a trusted name in nitrogen generation. We provide quality nitrogen generators to businesses in food packaging, medical and chemical industries, and more. To learn more about obtaining a nitrogen generator for your food packaging company, contact us today.

Nitrogen Tank Blanketing: What Is It And What Is The Purpose Of N2 Blanketing?

Nitrogen blanketing is a common manufacturing process that creates safe storage for certain liquids. Depending on what’s being stored in the container, nitrogen blanketing can prevent the stored item from degrading or deteriorating over time. Nitrogen blanketing is often used for storage tanks, and therefore, is sometimes called tank blanketing or tank padding.

What is Nitrogen Blanketing?

Nitrogen blanketing is the process of filling a storage tank with nitrogen to stop the storage material (usually a liquid) from coming into contact with oxygen. It can potentially mitigate the explosive condition created by having oxygen in the tank, and also extends the product life of the storage material.

Where is Nitrogen Blanketing Used?

Nitrogen blanketing is used in many industries, including:

Why Is Nitrogen Blanketing Important?

Nitrogen maintains stable conditions for the product being stored in the container. Whether it’s preventing discoloration, explosion, polymerization, or another unwanted change, nitrogen stops the stored product from interacting with nitrogen. Other benefits of nitrogen blanketing include:

  • Reduced potential for an explosion
  • Less chance of corrosion, which can lead to improved equipment life
  • Less chance of degradation of the stored item
  • Increased service life for the storage container itself, which could otherwise degrade due to the presence of liquid and oxygen
  • Increased safety due to the reduction of oxygen in the storage tank

What Size Storage Tanks Are Eligible?

Storage tanks of all sizes, from very large to very small, can be used for nitrogen blanketing.

What Is the Nitrogen Blanketing Procedure?

There are multiple ways of making nitrogen blanketing work. Most businesses that require this kind of work to be done have a nitrogen blanketing system. One way is through the use of a blanketing regulator, which helps control the pressure inside the tank.

With this system, the valve is mounted on top of the storage tank, and gas is pushed into the tank until the pressure inside the tank reaches a pre-determined point. When the pressure inside the tank is correct, the regulator stops the gas from entering the tank. Ultimately, the nitrogen blanket is created by decreasing the concentration of oxygen in the tank and increasing the amount of nitrogen.

What’s the Best Way to Get Nitrogen for Nitrogen Blanketing?

Nitrogen blanketing is an important storage practice in a variety of industries. If your business uses nitrogen blanketing as a method of storing chemicals, food products, or something else, your business will need a regular supply of nitrogen. There are multiple ways to acquire nitrogen for nitrogen blanketing.

Nitrogen Storage Tanks

Nitrogen storage tanks are a common source of nitrogen for businesses that use nitrogen periodically. While nitrogen storage tanks are serviceable for businesses that only need a small, infrequent nitrogen supply, there are many downsides to using nitrogen storage tanks for a constant and regular supply of nitrogen.

Namely, nitrogen storage tanks are subject to problems with supply and delivery. They require a lot of space to store, and shipments of tanks can sometimes be delayed due to weather, supply chain issues, and more. Maintaining a regular supply of nitrogen storage tanks can be administratively and logistically challenging. In addition, nitrogen storage tanks represent an ongoing cost that can add up over time.

Nitrogen Generator

A nitrogen generator is a good solution for a business that requires a regular supply of nitrogen for its operations. While a nitrogen generator does represent an upfront one-time cost, this cost is far less than the ongoing costs of nitrogen storage tanks. In addition, the nitrogen generator is always available to supply nitrogen, whereas nitrogen tanks are subject to availability.

Once the generator is purchased, the only ongoing costs associated with the generator are the maintenance and power to run the generator. This can save your business money over time. With a nitrogen generator on hand, your business will enjoy a steady supply of nitrogen for its business purposes year-round.

Need a Nitrogen Generator? Get Yours from a Reputable Manufacturer

A well-constructed, well-designed nitrogen generator can help your business save money and can also keep your business functioning. To purchase your nitrogen generator, contact On Site Gas. We design and build nitrogen generators that provide safe, continuous nitrogen gas for a variety of applications including nitrogen blanketing. Our reliable generators are designed to last.

To learn more about nitrogen generators for your business, see our FAQ page or contact us.

Buying Nitrogen Gas? Make Your Own N2 Gas With On Site Gas Systems

If your company purchases nitrogen gas for industrial or manufacturing purposes, then you’re probably already aware of the downsides of buying nitrogen gas. Sometimes, suppliers run out. Other times, deliveries are delayed. It is also expensive. Whether buying your nitrogen gas in bulk or in a cylinder, you’re probably familiar with these problems. You may find yourself wondering where to buy nitrogen gas and what you can do to save time, effort, and money in the process. Luckily, there’s a solution.

The Downsides of Buying Nitrogen Gas

To examine the downsides of buying nitrogen gas, we must consider the different forms nitrogen gas can take.

Bulk Tank

Bull tanks are one method that laboratories and manufacturers purchase nitrogen gas to be delivered to their locations. They are used for bulk gas supply. The gas the bulk tank contains is piped in, which requires a sophisticated and expensive piping infrastructure to be installed.


Cylinders provide pressurized nitrogen gas to facilities that need them. Cylinders are widely used by food and beverage companies, pharmaceutical companies, glass and plastics manufacturers, metal fabrication businesses, aerospace companies, and more. However, cylinders do not provide the safest means of obtaining nitrogen.

We know today that there is a better, more efficient way to obtain nitrogen on-site.

What’s the Alternative?

Nitrogen generators are an on-site solution for companies in need of nitrogen gas. These machines offer many benefits for businesses. For a business seeking a reliable supply of nitrogen, nitrogen generators are the preferred product.

What are the benefits of a gas generator?

Gas generators have many benefits that cylinders and bulk tanks lack. Below are some of the benefits you can expect when you install a nitrogen gas generator on site.


Gas cylinders are inconvenient if your demand for cylinders fluctuates. Ordering and obtaining cylinders quickly can be challenging, and sometimes obtaining cylinders at the last minute isn’t possible. In addition, the administrative work required to keep gas cylinders on hand as needed can be ongoing and challenging. Sometimes, just finding space for your cylinders can be tough.

Consistent Purity

Gas generators provide a consistent gas purity that can be relied upon. If your manufacturing or industrialization process requires a consistent purity of nitrogen gas, then a nitrogen gas generator can produce results without incurring waste. This stands in contrast to nitrogen gas cylinders, where the last 10% plus of nitrogen gas is wasted, as you can only use the amount of nitrogen in a cylinder above your process pressure.

Reduced Cost

Gas cylinders and bulk tanks represent an ongoing cost for the business, unlike a nitrogen gas generator. Costs associated with cylinder and bulk tank usage include transportation, delivery, and rental fees. In addition, the cost of gas can fluctuate based on supply and demand. Gas generators only incur a one-time charge for the purchase and then maintenance costs, which are minimal. This one-time cost of purchase, when spread out over time, is far more affordable than the cylinder cost.


Cylinders and bulk tanks store gas under pressure. In the event of a leak, the environment where the cylinders or bulk tanks are stored could change dramatically, in ways that could potentially be unhealthy. In addition, cylinders can be difficult to move safely. Anyone tasked with moving nitrogen cylinders must be trained to do so properly. Finally, any time gas is stored under pressure, it can be a potential safety issue. Nitrogen generators don’t have any of these concerns, because they only produce nitrogen on demand.


Cylinders and bulk tanks take up a lot of space, depending on the needs of the business. A nitrogen gas generator, on the other hand, may take up less space. Once installed, it only takes up as much space as the footprint of the machine.

Eliminate the Need for Nitrogen Gas Cylinders

Installing a nitrogen generator can improve your business processes and will also result in cost savings over time. On Site Gas manufactures nitrogen gas generators. To learn more about how nitrogen gas generators can impact your business, or to get a price quote, contact On Site Gas for more information.

Nitrogen Gas Tanks vs. On-Site Nitrogen Generators

Nitrogen is an essential ingredient in a variety of manufacturing processes. Many businesses get their supply of nitrogen from N2 gas tank deliveries, but there are many downsides to getting a steady supply of nitrogen this way. In fact, nitrogen gas tank rentals are inefficient in many ways. Nitrogen gas tanks purchased this way are costly and require a lot of space for storage. They can also be susceptible to supply chain problems.

There is a solution to this problem. If your business relies on N2 gas tanks for your manufacturing process, it’s crucial to learn the benefits of on-site nitrogen generators. Nitrogen generators solve many of the problems made by nitrogen gas tanks. Here’s what you need to know.

On-Site Nitrogen Generation Vs. Bottled Nitrogen

On-site nitrogen is nitrogen created from a generator. Nitrogen generators are a reliable source of nitrogen that can deliver 24 hours per day and seven days per week. Below are some ways that nitrogen generators are better than nitrogen gas tanks.

  • Less waste. Sometimes it’s difficult to get all the nitrogen out of the bottles, but when you create your own nitrogen on site, you produce less waste overall.
  • Control purity. When you have a nitrogen generator, you can set the purity level. Purity control makes manufacturing processes easier.
  • Cost-efficient. Although there’s an up-front cost associated with purchasing a nitrogen generator, there are significant cost savings over time. Once the equipment is purchased, the only associated costs come from maintaining the machine.
  • Any time you’re working with a high-pressure cylinder, there’s a risk. Getting your nitrogen from an on-site generator is safer.
  • Sustainability. Generating your nitrogen on site has a lower environmental impact than receiving nitrogen tank deliveries.

Other Benefits of Generating My Nitrogen On Site

In addition to the benefits named above, there are many other benefits of generating nitrogen on site.

  • No more worries about supply chain problems. Nitrogen cylinders can be challenging to get a hold of, and it only sometimes arrives when you need it. Relying on nitrogen gas deliveries for your manufacturing process can be dangerous– weather, shortages, and other problems can get in the way of your deliveries. Having a nitrogen generator on site ensures that you’ll have a steady supply of nitrogen, where you want it when you want it.
  • You’ll start making money back sooner than you think. Many businesses take less than two years before they cover the initial cost of the nitrogen generator. Over time, they save up to 80% on the cost of nitrogen compared to purchasing bulk or bottled nitrogen.
  • You’ll save space. Nitrogen tanks can take up a lot of space, depending on how much nitrogen you need to make or package your product. Nitrogen generators take up less space and do not need gas bottles in your workshop.
  • You’ll save administrative time. Finding new suppliers of nitrogen can take time. Using a nitrogen generator fixes that by ensuring that you have a consistent supply of nitrogen on hand without ordering new tanks every week, month, or how often you need them.

Buying a Nitrogen Generator System? How to Choose the Right Manufacturer

When you’re looking for a nitrogen generator system, it’s important to find a manufacturer that makes dependable products that they support. Do your research when you’re choosing between multiple manufacturers: how long have they been in business? Do they support their products?

On Site Gas is a well-respected name in the industry. We make nitrogen generators that last, and they’re backed by a warranty that offers full protection. We offer service and system support for customers who buy our generators.

To learn more about nitrogen generators from On Site Gas, contact us for a quote.

Nitro-Infused Shoes: What Are Nitrogen-Injected Sneakers?

Nitrogen injection is popular in a range of products throughout the food and beverage industry. But did you know that nitrogen injection is also becoming prevalent in other industries, like footwear? That’s right, nitro-infused shoes exist, and they’re incredibly comfortable!

Brooks, one of the most respected names in athletic footwear, has recently invented a type of nitrogen-injected shoe – the DNA Loft v3. This new advancement in footwear technology uses nitrogen injection to create a soft cushioned sole for runners seeking a new experience with their athletic footwear. Let’s take a closer look at nitro-infused shoes.

Overview of Nitro-Infused Shoes

Brooks set out to create a “whole new world of softness” with its new nitro-infused shoes. The difference between their standard foam and the nitrogen-injected foam is the size of the cell structure. The larger cell structure in the cushion provides the wearer with a greater sense of cushion.

When did Brooks start to experiment with nitrogen-infused shoes?

Brooks has been working with nitrogen injection for approximately three and a half years. They discovered that nitrogen injection enhanced the effect of the foam cushion, creating a softer, lighter, and more responsive feel.

What made Brooks experiment with nitrogen?

The decision to experiment with nitrogen came after listening to what their customers wanted. People who buy Brooks shoes want supportive soles without being too squishy. Runners also care about the aesthetics of the shoe itself.

Ultimately, the decision to do anything with Brooks shoe designs always comes down to customer needs. Every iteration of every shoe is tried out on potential customers, who then critique the shoe and provide feedback that guides the design. The nitrogen infusion gave clients exactly what they were seeking in a shoe.

How does this work?

Softer and lighter are the words that Brooks uses to describe their nitrogen-infused soles – but also more responsive. In other words, the runner wearing the shoe sinks gently into the sole but then bounces back quickly for an easy, comfortable run.

The responsiveness comes in part from the shoe’s sole design. The foam is split into two parts, including the heel and forefoot. This allows the runner’s foot to have a soft, springy landing that bounces back easily. This facilitates the natural movement of the foot. The wearer gets a pleasant sinking feeling followed by a snapback that propels them forward.

How is the shoe made?

The foam is made through a supercritical fluid foaming process. Brooks starts with base proprietary foam and then applies heat, pressure, and nitrogen. The mixture is injected into the foam and held there for a while. Eventually, the heat is turned down and the soles become what they are.

What makes the Brooks shoe different?

Nitrogen-based cushioning systems are not brand new, but the Brooks shoe stands out because the nitrogen is fused directly with the midsole’s foam. Which enables the sole of the shoe to be overall more responsive to the movement of the foot.

Experimenting with Nitrogen? Get Your Nitrogen Supply from the Right Source

Nitrogen infusion is changing industries across the board and can benefit your business too. It can be injected into a variety of products, often with amazing results.

On Site Gas offers reliable nitrogen gas generators for these purposes. As one of the most respected names in the industry, we can provide you with the tools you need to infuse your products with nitrogen. Contact us today to get a quote.

Looking For Nitrogen Gas Cylinders? Here’s A Cost-Effective Alternative

Businesses in need of nitrogen gas have many options for delivery and production. From food and beverage processing to gas and laser cutting, nitrogen is required in many manufacturing and industrial processes. There are many ways to deliver a steady supply of nitrogen to your industrial facility. The most efficient and cost-effective method is to generate nitrogen on-site. Understanding the advantages of on-site nitrogen can help keep your business functioning optimally.

Nitrogen Production Systems

If you’re hoping to produce nitrogen on-site, On Site Gas has two options:

Let’s look at what these options offer and which is best for your business’s needs.

Membrane Nitrogen Generators

Membrane nitrogen generators use selective permeabilities of different gases applied across a semipermeable membrane. The nitrogen gas is extremely dry, with atmospheric dew points typically below 40°F. The membranes act like a filter with no moving parts and continuously generate nitrogen at selected flow and purity.

PSA Nitrogen Generation Systems

This generator system passes a gaseous mixture through a specialized absorbent material, and then the individual gases are separated based on their molecular characteristics. Adsorption is the physical process of separating molecules. Our Pressure Swing Adsorption (PSA) systems generate nitrogen, by separating it from the oxygen in ordinary air.

Nitrogen System Alternatives

In addition to the nitrogen system alternatives listed above, you may opt to have nitrogen delivered to your facility by external suppliers. While many businesses use gas cylinders or other methods, these are less efficient than generating your own nitrogen.

Nitrogen Cylinders

Nitrogen cylinders can be costly, and often don’t meet every business’ need. Nitrogen gas cylinder sizes and volumes vary, allowing your business to choose the size that meets your business needs.

Unfortunately, nitrogen gas cylinders don’t meet every business’ needs. In addition to the ongoing costs associated with cylinders, cylinders also have associated safety hazards and gas wastage.

The safety hazards of cylinders occur because the transportation, handling, and storage of pressurized gas always carry some risk. Gas wastage occurs because there’s always a certain amount of residual gas in the cylinders, even when they’re determined to be empty.

Finally, supply chain problems can also impact nitrogen cylinders. If your supplier cannot deliver nitrogen as needed, your business may experience production delays on time.

Nitrogen Dewars

A dewar is a large tank that can quickly deliver a large volume of gas. However, dewars have similar problems to nitrogen cylinders: safety hazards, gas wastage, and the potential for supply chain problems.

Nitrogen Bulk Tanks

A nitrogen bulk tank is a structure installed on-site to provide a constant gas supply, but they come with some disadvantages. Maintenance and rental costs can be high, and off-gassing can also lead to losses that add to the cost of the bulk tank.

Benefits of On-site Nitrogen Systems from On Site Gas

Many businesses turn to on-site nitrogen generation for their nitrogen needs. At On Site Gas, we offer PSA nitrogen generation systems and membrane nitrogen generators for companies needing a steady supply of nitrogen gas at their industrial facilities. There are various reasons that On Site Gas nitrogen generators are preferred to cylinders, dewars, and nitrogen bulk tanks.

Easy Installation

On Site Gas offers training to show businesses how to install and maintain their nitrogen generators. All On Site Gas nitrogen generators are easy to install and, once on site, never need to be reinstalled.

Cost Effective

Nitrogen generators involve more upfront costs for the consumer, but in little time, an On Site Gas nitrogen generator will become more cost-effective than cylinders, dewars, or bulk tanks. Provided that your nitrogen generator is well-maintained, it will incur few ongoing costs and save your business money over time.

Reliable Nitrogen Supply

Nitrogen gas cylinders aren’t a reliable way to keep nitrogen on hand. Nitrogen deliveries can be interrupted for any reason, whether because of supply chain problems, vehicle mechanical problems, or staffing issues. Nitrogen generators from On Site Gas aren’t subject to these problems. Once installed on your property, your nitrogen generator will provide a reliable nitrogen supply that you can rely on.


Whereas cylinders and other pressurized nitrogen containers can be dangerous, On Site Gas nitrogen generators are designed for safety. In addition, no nitrogen is stored in the use of a nitrogen generator. This makes nitrogen generators far safer than cylinders.

In Need of Reliable Nitrogen Supply? Contact On Site Gas

At On Site Gas, we happily provide customer service and support to clients who purchase our nitrogen generators for their facility. Contact us for a quote to learn more about obtaining a nitrogen generator for your facility.

Nitrogen-Infused Cola: What is NITRO PEPSI™?

Nitrogen-infused drinks are more popular than ever – and for a good reason. Consumers enjoy the texture, appearance, and flavor nitrogen brings to their favorite drinks. The most recent addition to the nitrogen-infused beverages sold in stores may come as a surprise – it’s Pepsi!

The NITRO PEPSI™ drink looks like other nitrogen-infused drinks, similar to Guinness and Nitro Coldbrew from Starbucks. The nitrogen craze should not be ignored if you’re a beverage maker. In this article, we’ll discuss nitrogen-infused beverages and the newest product from Pepsi.

What Is a Nitrogen Infused Soda?

As you might imagine, a nitrogen-infused beverage is a drink infused with nitrogen gas. Some consumers prefer nitrogen-infused beverages because adding nitrogen to any drink produces a silky texture with a thick, creamy foam head. If you’ve ever had a glass of Guinness Stout, you know exactly what that perfection looks like.

Why Nitrogen Works in Drinks

First, a word about carbon dioxide: for decades, carbon dioxide (CO2) has been the gas of choice for beverages like sodas, sparkling waters, and more. CO2 is highly soluble in beverages, so it dissolves well and comes out relatively slowly in large, appealing bubbles that tickle as they go down. It also creates a fizzy texture and an aroma.

How does nitrogen differ from carbon dioxide? Nitrogen is far less soluble than carbon dioxide. Nitrogen gas comes out of beverages more quickly, forming much smaller bubbles and a much creamier head than carbon dioxide. This creates a smooth, thick texture and a velvety head.

Nitrogen even adds sweetness to the beverage, which can influence the taste. This distinctive difference makes nitrogen-infused drinks seem entirely different from their carbon dioxide-infused beverages.

One more thing that makes nitrogen-infused drinks more appealing than CO2-infused drinks: the aesthetics. You can see how this manifests on the NITRO PEPSI™ website, where you can see small swirling bubbles in the dark brown nitrogen-infused soda.

How NITRO PEPSI™ Appeals to Consumers

NITRO PEPSI™ may be the first of its kind from a major soda producer. What’s making NITRO PEPSI™ successful? Let’s take a look.

  • Capitalizing on a craze. Pepsi is one of several beverage-producing businesses that have jumped on the nitrogen-infused bandwagon. In addition to Guinness and Starbucks, other well-known businesses (like Dunkin Donuts and Sam Addams) have been riding (and building) a wave of enthusiasm for nitrogen-infused drinks.
  • Creamy, attractive beverage. Nitrogen adds character and charisma to beverages. This infusion makes a completely drinkable, aesthetically appealing beverage in a Pepsi.
  • Smart marketing. Take a look at Pepsi’s website to see how the company is marketing its new product to consumers, and you’ll see one more example of how Pepsi is doing nitrogen work for its customers.

Want to Take Advantage of Nitrogen Infused Drink Craze?

Whether you’re producing local beverages from a small commercial operation or a significant beverage producer in search of the next big thing, if you want to create a nitrogen-infused soda or another type of drink, you will need a steady supply of nitrogen.

A nitrogen generator is an eco-friendly way of obtaining a reliable (and unending) supply of nitrogen.

For a steady supply of nitrogen contact On Site Gas. As a reputable supplier of nitrogen gas generators, we can help you get the generator that will serve your purposes for your business. Contact us today to get a quote.

What is the Density of Nitrogen Gas?

At 78.084 percent by volume, nitrogen gas is the principal component of the Earth’s atmosphere. This odorless, tasteless, colorless gas is known for being relatively inert. What does that mean? It doesn’t usually react with most substances and does not support combustion.

The Density of Nitrogen Gas

At 32 degrees Fahrenheit and one atmosphere of pressure, nitrogen gas has a density of 0.07807 lb/cubic foot (0.0012506 grams/cubic centimeter). Nitrogen gas in one atmosphere of pressure boils at -320.4 degrees Fahrenheit.

Importance in Nature

Nitrogen is a required element in the synthesis of many organic compounds. While many organisms cannot consume nitrogen, they can get a supply through a nitrogen fixation process. During this process, some bacteria synthesize nitrogen molecules from atmospheric nitrogen gas.

In addition, nitrogen in the air dissolves into the body’s tissues when a person breathes air under pressure. When removed from the pressure, the nitrogen gas comes out of the solution. This situation is known as decompression sickness but is also called “the bends.” This condition can be life-threatening and is also painful.

Industrial Uses for Nitrogen Gas

Approximately two-thirds of nitrogen sold and produced is in its gaseous form – the rest is a liquid. This non-reactive gas can also be used to prevent combustible dust explosions. Below are the common uses of nitrogen.

Food Industry

Because nitrogen gas is so non-reactive, it can be used as a preservative to prevent oxidation, preventing foods from turning colors and delaying rancidity. This gas can preserve freshness in packaged and bulk foods.

Stainless Steel Manufacturing

Did you know that nitrogen is used during steel making? Nitrogen helps improve steel’s mechanical and corrosion properties, and when added to austenitic steel, it can improve strength, wear, work hardening rate, and corrosion resistance.

Electronics Manufacturing

Nitrogen is a versatile gas used in many electronics manufacturing applications. For example, high-purity nitrogen gas is used in lead-free solder applications. Its benefits include reduced dross on solder pots and surface tension. It can also be used for surface mount technologies (SMT), semiconductors, and more.

Chemical Production

In the chemical industry, nitrogen is in the production of fertilizers, nylon, dyes, nitric acid, and explosives. Nitrogen is also used during sample preparation to reduce the volume of liquid samples.

Fire Suppression Systems

Nitrogen can be used in fire suppression systems because these systems must reduce oxygen concentration. Reducing oxygen concentration in the air enables the fire to extinguish. Nitrogen is a safe gas because it’s safe for human exposure for a short period.

Pressurized Drinks

Nitrogen replaces carbon dioxide in drinks, especially in British ales. The gas is preferred in certain drinks because it produces smaller bubbles for a creamy, headier drink.

Need More Information About On Site Gas Nitrogen Generators?

On Site Gas is a trusted supplier of nitrogen gas generators for commercial purposes. Whether you need nitrogen gas for food packaging or filling tires, On Site Gas can help with this.

We sell our nitrogen generators to customers with a variety of needs. Buying a nitrogen generator is more cost-effective and environmentally friendly than purchasing nitrogen in canisters. Contact us to learn more, we’d be happy to answer any of your questions!

What is the Importance of Nitrogen to Manufacturing and N2 Technology?

Nitrogen is one of the most accessible and prevalent inert gases. It has become known as one of the most dependable resources in manufacturing across numerous industries. Nitrogen has many uses and benefits. Here is everything you need to know about the importance of nitrogen gas, especially when it comes to manufacturing and technology.

The Characteristics of Nitrogen

Nitrogen is a common pure element that comprises 78% of the atmosphere. This inert gas is made up of two nitrogen atoms (N2), which are fastened together in a three-way covalent bond. This covalent bond is stabilized and substantially strong.

This gas occurs completely naturally. This kind of molecular bond makes the probability of nitrogen reacting with any other element unlikely and unexpected. This, combined with the fact that nitrogen is colorless, tasteless, and odorless, makes it the gas of choice for nitrogen generation solutions in manufacturing applications.

Nitrogen is used for a variety of applications in numerous industries. These include, but aren’t limited to:

  • Food packaging and storage
  • Health and beauty aids
  • Electronics
  • Oil, gas, and mining
  • Meat and heat treating
  • Chemicals and plastics
  • Automotive and aircraft
  • Labs and pharmaceuticals
  • Medical
  • Industrial nitrogen
  • Biofuels and military nitrogen

Why Is Nitrogen Important to Many Different Industries?

Nitrogen has a few substantial characteristics that benefit and enable critical applications and processes in manufacturing, such as:

  • Prohibiting the oxidation of materials and products
  • Inhibiting the growth of harmful bacteria
  • Reducing or eradicating the risk of explosion, combustion, or fire
  • Producing a needed dry atmosphere

N2 Technology with Benefits Across Multiple Industries

Nitrogen is widely used in the food and beverage industry through a process known as Modified Atmosphere Packaging (MAP). It is injected into packaging and pushes the oxygen out of the air. The dry inert nitrogen replaces the oxygen, thereby eradicating any oxidation, prohibiting spoilage, and significantly extending the shelf life of the food or beverage product.

Likewise, the oil and gas industry leverages the inertness of nitrogen to create a safe atmosphere that is negative to combustion for tank and pipeline blanketing. For example, using pressurized nitrogen gas during the drilling process enables it to propel lighter drilling fluids. This allows for the removal of rubble, lubrication, and cooling of the drilling bit. Additionally, nitrogen lifting is a process that pushes nitrogen into the oil-bearing formation, which increases the productivity of an oil well throughout its life cycle.

While industries that use adhesives and paints need oxygen to harden and dry them, at some point, the oxygen must be removed to eradicate any unwanted oxidation (which can actually become harmful). Nitrogen blanketing is a process that is used to saturate the atmosphere surrounding the surface of a product within a storage tank. This stops the oxygen-initiated curing process. The result of nitrogen blanketing maintains the quality of a product and eliminates undesirable oxidation.

These are a few of the many examples of how applying nitrogen to the manufacturing process demonstrates the remarkable success and importance of N2 technology systems, nitrogen generation, and nitrogen generators.

On Site Gas Systems Are the Nitrogen Generator Pros

Consult with the experts at On Site Gas Systems for a reliable and efficient nitrogen generation system for your manufacturing process. Our nitrogen generator systems have provided customers around the world with top-notch solutions in hundreds of applications across a plethora of industries. We design and build high-performance nitrogen generators for any on-site plant location.

The Types of Nitrogen Purging Systems


Impurities, oxidation, and unwanted vapors (or gases) can occur within many industrial manufacturing systems. The presence of these gases runs the risk of creating a hazardous or explosive environment within the system. Nitrogen purging is the safest method for eradicating any potentially damaging or threatening ambiance by using a technique that implements an inert nitrogen atmosphere.

Industries such as pharmaceuticals, oil and gas, and chemicals integrate the process of nitrogen purging as an essential part of their daily operation. Where the presence and the contamination of threatening gases are likely, a nitrogen purge system is an absolute requisite.

The Method of the Nitrogen Purge

Nitrogen purging is a method of successful displacement of any dangerous gas, harmful vapor, damaging oxygen, or unwanted moisture to ensure the environment within the equipment or a system is dry.

Purging is a well-established and long recognized use of nitrogen gas. For example, tanks that are full of hydrocarbon liquids have vapor space that exists at the top of the tank where hydrocarbon vapors gather. When emptying an atmospheric tank, the air is drained and can become subject to friction or static electricity, which can easily ignite or explode. A nitrogen purging system, however, functions to eradicate the vapor space with nitrogen gas, thwarting the hazard of explosion.

A nitrogen purging system is ideal for substances that attract water by either absorption or adsorption. Substances like this include ethanol, glycerin, methanol, and concentrations of sulfuric acid, lye, or honey.

The Merits of a Nitrogen Purging System

The main objective of a nitrogen purging system is to purify pipes and other components in a manufacturing process that can house various contaminants. Nitrogen is a reliable inert gas that is both economical and safe. The benefit of a nitrogen purge is that it eradicates the risks associated with unsafe elements, including oxygen. It creates a more stable, dry, and safe environment. Depending on the method of nitrogen purging used, the nitrogen may flow at either low or high pressures.

What are the Different Kinds of Nitrogen Purging Systems?

There are four main processes for a nitrogen purge, each of which requires different equipment. The four processes involved include:

  • Displacement purging
  • Dilution purging
  • Pressure transfer of liquids
  • Pressure hold vacuum process

Displacement purging

Manufacturing equipment that is designed with a basic cross-section (such as pipelines) is ideal for displacement purging. This functions by using a scraping piston (or pig) which is thrust by the pressure of the nitrogen. As the scraping piston propels through the line, it purges the unwanted matter. The volume of the pipeline determines the amount of nitrogen that is needed to perform this task. There is no mixing involved (as in the dilution method) and it is possible to separate nitrogen and additional material with an inert fluid.

Dilution purging

Systems that are more complex than a straightforward pipeline, and equipment that includes cross-sections, are ideal for dilution purging. An example of this includes columns, reactors, or kilns. The nitrogen is mixed with the specific gas needed to be purged in the system. The mixture is purged from the entry point to the exit point. Emphasis is placed on the location(s) of these two points. Diluting combined with displacing the unwanted matter results in the creation of a more inert atmosphere.

Pressure transfer of liquids

In some instances, the objective is to move liquids without the use of a pump. Nitrogen is the perfect choice to pressurize the headspace inside the container or system in order to do so. This is particularly useful where space is constricted or where materials that influence pump efficiency are present. By using the pressure transfer of liquids, the chance of oxidation is significantly reduced.

The pressure-hold vacuum process

There may be conditions present that prevent the nitrogen from sweeping away harmful substances. In this case, the container is instead pressurized with nitrogen. This creates the conditions for dilution to occur and the material is then vented. The pressure hold vacuum process is then repeated. This is an effective method for containers that have only one opening. The amount of nitrogen needed for this process is based on how many times pressurized purges are needed to reduce the unwanted contaminant to the desired level.

On Site Gas is the Leader in Nitrogen Purging Systems

On Site Gas is best-in-class when it comes to matching nitrogen purging systems to your needs. To learn more about which nitrogen purging system is best for you, consult with a member of our customer care team today. Our experts are here to help you choose the nitrogen purging solution that works for you.