Carbon Dioxide (CO2)

Buy Liquid Carbon Dioxide or Compressed Carbon Dioxide Gas (CO2)

We offer compressed carbon dioxide gas and liquid carbon dioxide (CO2) in a variety of purities and concentrations including but not limited to beverage grade, food grade and USP. See the chart below and download the spec sheets and safety data sheets for more information on buying liquid carbon dioxide and carbon dioxide gas from Praxair.

Product Name Concentration Safety Data Sheet Spec Sheet
Carbon Dioxide (CO2) >99.9%

Carbon Dioxide (CO2) Safety Data Sheet (188KB)

(use this SDS if your CO2 is stored in a high pressure container)

Refrigerated Liquid Carbon Dioxide (CO2) Safety Data Sheet (66.8KB)

(use this SDS if your CO2 is stored in a low pressure container)
Carbon Dioxide (CO2) Air Mixture 0.5 ppm – 50%

Carbon Dioxide (CO2) Mixture Spec Sheet (208KB)

Carbon Dioxide (CO2) Gas Argon Mixture 0.5 ppm – 50%

Carbon Dioxide (CO2) Mixture Spec Sheet (208KB)

Carbon Dioxide (CO2) Gas Helium Mixture 0.5 ppm – 50%

Carbon Dioxide (CO2) Mixture Spec Sheet (208KB)

Carbon Dioxide (CO2) Gas Hydrogen Mixture 0.5 ppm – 50%

Carbon Dioxide (CO2) Mixture Spec Sheet (208KB)

Carbon Dioxide (CO2) Gas Nitrogen Mixture 0.5 ppm – 50%

Carbon Dioxide (CO2) Mixture Spec Sheet (208KB)

At Praxair, we develop the right grades for the right applications. Give us a call and we'll help you determine the best supply option for your operations.



Uses of Carbon Dioxide (CO2) Gas and Liquid Carbon Dioxide by Industry

Food & Beverage

Carbon dioxide (CO2) is used as a key cryogenic agent in cooling, chilling and freezing applications — protecting the taste and texture of your food products by maintaining proper temperature control. CO2 also reduces the need for preservatives in packaged products, and is an essential ingredient in carbonated beverages.
 
Beverage Carbonation
CO2 Snowing
Flour & Dough Cooling
Freezing & Chilling
Greenhouse Growing
Meat Mixing

Healthcare

Carbon dioxide (CO2) USP is used for insufflation and is often combined with oxygen or air as a respiratory stimulant to promote deep breathing.

Respiratory Therapy & Pulmonary Function Testing

Oil & Gas

It is well known in the oil industry that carbon dioxide can be applied to your reservoir as a tertiary oil recovery method. At Praxair, we can provide CO2 injectivity testing, pilot applications and full-field projects. We also provide CO2 services for energized fluid fracturing (fracing) in conventional reservoirs for both long-reach horizontal and vertical wells.

Enhanced Oil Recovery
Well Hydraulic Fracturing

Pulp & Paper

Carbon dioxide (CO2) is an industrial gas used in the pulp and paper industry to control pH levels, enhance pulp yield, and wash brownstock and bleached stock. 

Screening
Washing

Water & Wastewater Treatment

A safe alternative to mineral acids, carbon dioxide (CO2) replaces chemicals used in pH reduction — lowering costs and improving plant safety and flexibility. 

pH Control

Welding & Metal Fabrication

Carbon dioxide (CO2) is most often mixed with argon as a shielding gas used to prevent atmospheric contamination of molten metal in electric arc welding processes.

Welding Processes

Explore other industries that use carbon dioxide (CO2).

Chemicals
Electronics
Pharmaceutical & Biotechnology

Carbon Dioxide (CO2) Tanks, Cylinders, Canisters, Bottles & Dewars

Cylinders & Liquid Containers

For smaller, more specialized applications, we offer carbon dioxide in high-pressure gas cylinders or liquid carbon dioxide (CO2) dewars in a variety of sizes.

Bulk & Microbulk Delivery

Our bulk liquid delivery system offers a full range of purities and tank sizes, for your liquid CO2 supply needs. We also offer Microbulk carbon dioxide gas delivery as an alternative to cylinders.

Not sure what’s right for you?

At Praxair, our scale and reach lets us supply any gas, for any application, almost anywhere in the world — safely, reliably and cost-effectively. Give us a call and we'll help you determine the best supply option for your operations.