Oxygen – Messer Canada

Oxygen (O₂) High Purity Gas

Messer’s high-purity oxygen supports both medical and industrial applications with the highest standards of quality and reliability. In healthcare, it is essential for respiratory care, anesthesia, and life support, ensuring patient safety and precision. In industry, oxygen improves combustion, cutting, and process efficiency in sectors such as metal fabrication and electronics manufacturing. Offered in multiple purity levels and delivery formats, including cylinders, tanks, and bulk supply, Messer provides dependable oxygen solutions tailored to the needs of hospitals, manufacturers, and research facilities across Canada.

Technical Specifications

Boiling point:

-183.0°C

Gas density @21°C, 1 atm:

1.331 g/L

Conversion liquid to gas @15°C, 1 atm:

1L to 861 L

TC classification:

2.2

For detailed application information, please refer to the technical data/specification sheets in the catalogue.

Most Commonly Purchased Oxygen Gases

Messer supplies gases in a range of purity levels and formats to meet industrial, research, and precision needs. With delivery options including cylinders, dewars, bulk storage, and on-site generation, we ensure consistent quality, performance, and efficiency.

OXYGEN GR4.5 300SZ

Oxygen is used for many applications including chemical synthesis, oxidation reactions and as a calibration gas.
Part Number: 24001826
MFR # 0367

Oxygen Medical Grade USP

Applications include use in clinical practice to provide a basis for anaesthetic techniques as well as pre- and post-operative management. Also used to restore the tissue oxygen tension towards normal by improving oxygen availability in a wide range of conditions.

Gourmet O 100% Oxygen Gas

Modified Atmosphere Packaging gas (MAP) is a packaging technique used to extend the shelf life of fresh food. It works by surrounding the food with gases that stop, or at least slow down the growth of bacteria, yeasts and moulds that spoil food.

Oxygen Industrial Grade

Messer's cylinder oxygen is produced from vaporized liquid oxygen. Its minimum guaranteed purity is 99.5 percent.

Browse our full line of Oxygen Gases on Messer WebShop

Gas Grades & Formats

Oxygen / R-732

Oxygen/ R-732 / O₂
CGA: 540
CAS: 7782-44-7
Shelf Life: 60 months

Oxygen Liquid

Oxygen Liquid
CAS: 7782-44-7

Related Equipment

Regulator MESSER M2S Dual Stage, Stainless Steel

Messer M2S dual stage stainless steel regulators are intended for primary pressure control of ultra-high purity or corrosive gases for applications requiring constant pressure control and delivery regardless of supply pressure variations.

Regulator MESSER M2B Dual Stage, Brass

Messer M2B dual stage brass regulators are intended for primary pressure control of non-corrosive, high purity or liquefied gases for applications requiring constant pressure control and delivery regardless of supply pressure variations.

Line Regulator MESSER MLB Single-Stage, Brass

Messer MLB brass line regulators are intended for secondary pressure control of non-corrosive, high purity or liquefied gases or as point of use pressure control in high purity gas distribution systems.

Data Sheets & Resources

View technical data sheets and other safety information in our resource library.

Oxygen (O2)

Oxygen (O2) High Purity Gas

Technical Specifications

Most Commonly Purchased Oxygen Gases

OXYGEN GR4.5 300SZ

Oxygen is used for many applications including chemical synthesis, oxidation reactions and as a calibration gas. Part Number: 24001826 MFR # 0367

Oxygen Medical Grade USP

Applications include use in clinical practice to provide a basis for anaesthetic techniques as well as pre- and post-operative management. Also used to restore the tissue oxygen tension towards normal by improving oxygen availability in a wide range of conditions.

Gourmet O 100% Oxygen Gas

Modified Atmosphere Packaging gas (MAP) is a packaging technique used to extend the shelf life of fresh food. It works by surrounding the food with gases that stop, or at least slow down the growth of bacteria, yeasts and moulds that spoil food.

Oxygen Industrial Grade

Messer's cylinder oxygen is produced from vaporized liquid oxygen. Its minimum guaranteed purity is 99.5 percent.

Gas Grades & Formats

Related Equipment

Regulator MESSER M2S Dual Stage, Stainless Steel

Messer M2S dual stage stainless steel regulators are intended for primary pressure control of ultra-high purity or corrosive gases for applications requiring constant pressure control and delivery regardless of supply pressure variations.

Regulator MESSER M2B Dual Stage, Brass

Messer M2B dual stage brass regulators are intended for primary pressure control of non-corrosive, high purity or liquefied gases for applications requiring constant pressure control and delivery regardless of supply pressure variations.

Line Regulator MESSER MLB Single-Stage, Brass

Messer MLB brass line regulators are intended for secondary pressure control of non-corrosive, high purity or liquefied gases or as point of use pressure control in high purity gas distribution systems.

Data Sheets & Resources

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Oxygen (O₂)

Oxygen (O₂) High Purity Gas

Oxygen is used for many applications including chemical synthesis, oxidation reactions and as a calibration gas.
Part Number: 24001826
MFR # 0367