What is oxygen (O2)?

Oxygen (O2) is a diatomic molecule composed of two oxygen atoms. It is a colorless, odorless, and tasteless gas essential for life, combustion, and industrial processes. As the third-most abundant element in the universe, oxygen constitutes approximately 21% of Earth’s atmosphere and is critical in both biological and industrial systems.

What are the key physical properties of oxygen?

• Density: 1.429 g/L at 0°C (slightly denser than air).

• Melting/Boiling Points: -218.8°C (melting) and -183°C (boiling).

• Solubility: Moderately soluble in water (9 mg/L at 20°C), crucial for aquatic life.

• Reactivity: Supports combustion but is non-flammable; reacts with metals and organic compounds.

  
  

How is oxygen concentration measured, and what purity grades exist?

• Atmospheric Concentration: ~21% in natural air.

• Industrial Grades: Ranges from 90% (welding) to 99.999% (ultra-high purity for electronics/pharma).

• Medical Oxygen: ≥99.5% purity, compliant with USP/EP standards for respiratory support.

What are the primary industrial and medical uses of oxygen?

1. Healthcare: Life-saving respiratory support in hospitals, ambulances, and home care.

2. Manufacturing: Steelmaking (basic oxygen furnaces), glass production, and chemical synthesis.

3. Aerospace: Rocket propellant oxidizer and cabin pressurization systems.

4. Water Treatment: Aeration processes for wastewater purification.

5. Energy: Enhances combustion efficiency in power plants and metal cutting.

How is oxygen transported internationally?

Classified as UN1073, Class 2.2 (non-flammable gas), oxygen transport requires:

• Cylinders & Tanks: DOT/ISO-compliant high-pressure steel cylinders or cryogenic tanks for bulk liquid O2.

• Regulatory Compliance: Proper labeling, MSDS, and adherence to IMDG/IATA/ADR regulations.

• Safety Measures: Avoid contact with oil/grease (explosion risk), secure cylinders upright, and prevent overheating (>52°C).

  
  

What are best practices for oxygen storage?

• Environment: Store in well-ventilated, fire-resistant areas away from flammables.

• Cylinder Handling: Maintain valve caps, inspect for leaks monthly, and keep liquid O2 tanks at -183°C.

• Purity Control: Use dedicated lines to prevent cross-contamination (e.g., with acetylene).

Why Choose Zibo Dijia special gas Co,.LTD.?

As a global leader in gas solutions, we deliver:

• Certified Oxygen Supply: Medical, industrial, and aerospace grades with guaranteed purity.

• End-to-End Logistics: Safe transport, 24/7 emergency support, and customs documentation.

• Sustainability Focus: Efficient recovery systems and eco-friendly packaging.

  
  

Visit www.dijiagases.com for tailored oxygen solutions and request a quote now!