Carbonic Apps - Airgas.com

Dry Ice/ CO2
Airgas Carbonic
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Beverage Carbonation
The characteristic tingle and fizz of carbonated beverages results from the interaction of CO2 and H2O molecules in beverage solutions.

Fire Protection
CO2 is widely used in fire extinguishers for both hand held and fixed systems. It is also used in "blanketing" to displace oxygen to prevent combustion. A major advantage of CO2 is its cleanliness.

Enhanced Recovery of Petroleum Products
CO2 is used in various processes of oil and natural gas well stimulation to enhance productivity.

Molded Product Deflashing
Molded products, especially rubber compounds, often have undesirable flashings where mold sections were joined. CO2 is used to cool and embrittle the flashings in preparation of mechanical removal, saving the high cost of hand trimming and buffing.

pH Control of Waste Water
One of the critical aspects of effluent disposal is its degree of alkalinity. CO2 is one of the safest, cleanest and most economical means of reducing the pH of waste water.

Foam Expansion
The use of CO2 as an expanding agent in polyurethane foams eliminates the use of volatile organic compounds and chlorofluorocarbons to provide a safe, low cost alternative to these harmful chemicals.

Shielded Arc Welding
CO2 vapor is used to displace oxygen at the point of contact in arc welding. Speed, efficiency, quality and cost factors have stimulated wide use of this application in the Welding Industry.

Low Temperature Grinding
CO2 is added to heat sensitive materials in grinding operations for heat removal to prevent product softening or melting.

Aerosol Propellant
CO2 is a cost effective alternative pressure medium in many non-water based aerosol products, eliminating the use of hazardous solvents and chlorofluorocarbons.

Recarbonation of Potable Water
As a result of typical municipal potable water softening operations, the pH level of the water is raised which results in a chemically unstable water condition. The application of CO2 (recarbonation) establishes a chemical balance and minimizes mineral deposits in the water distribution system.

Purging and Inerting
Fuel tanks, pipelines and other containers with explosive or combustible vapors must be purged prior to some types of maintenance and/or change in usage. CO2 is an effective method for purging vessels of many unwanted vapors.

Foundry Core Hardening
As an alternative to the conventional process of baking foundry cores, CO2 is used in conjunction with a treated (silica) sand to form high quality cores resulting in time and energy savings.

Chemical Reactant
CO2 is used in the production of various carbonate compounds, in controlling pH and in many other processes involving chemical reactions.

IQF Freezing
Cooling and freezing operations are integrated into high speed production lines with CO2 tunnel and spiral freezers. Advantages include reduction of cold storage space, bacteria retardation, greater refrigeration efficiency, enhanced product quality and more efficient space utilization.

Shrink Fitting
Machined metal products such as bushings, collars and seats which require a "tight fit" can be easily assembled by cooling with dry ice.

Refrigeration in Mixing & Blending
CO2 injection reduces heat buildup induced by blade friction in mixing and blending of meat products and firms it in preparation of the forming process. Semi-automatic operation reduces manpower and minimizes space requirements.

Low Temperature Testing
CO2 is used as a refrigerant for testing products by simulating ambient temperatures down to -109.8 r;F. CO2 is easily stored, readily available and can be piped for automatic operation.

Pest Control in Stored Grain
Fumigating coffee, tea, tobacco and grains with CO2 has been successful in controlling insects in storage. CO2 provides a safe, clean alternative to environmentally hazardous fumigants.

Greenhouse Atmosphere Enrichment
CO2 is an essential raw material used by green plants in photosynthesis. Increasing the amount of CO2 available to plants can greatly increase plant growth and yields.

In-Transit Refrigeration of Processed Foods
Perishable processed foods can be refrigerated with CO2 during processing, enabling direct loading onto trucks and sustained safe temperatures during mechanical refrigeration temperature pull-down. Valuable freezer space is conserved and risk of spoilage is minimized. CO2 can also be used in limited applications as the sole refrigerant.

In-Flight Food Refrigeration
CO2 in its solid form (Dry Ice) is used to refrigerate In-flight Modules by the Airline Industry. Alternative methods are not as reliable or cost effective.

Non-Destructive Cleaning
CO2 cleaning utilizes dry ice to remove contaminants from most surfaces, greatly reducing waste products and the need for chemical solvents, sand, water and other media.

Modified Atmosphere Packaging
Packaging perishable food products with CO2 greatly extends the product shelf life by limiting the growth of aerobic microorganisms. Other benefits include reduced development of rancidity and odors, and better color retention.