Oxygen (O₂) is a colorless, odorless oxidizing gas essential for life and industry. Yingyue New Materials supplies full-series O₂ from 99.5% industrial grade to 6N ultra-high purity. Adopting advanced air separation technology, our oxygen features stable quality and low impurities. All products come with complete COA and MSDS, supporting global export and customized solutions
Oxygen (O₂) Gas | Industrial, Medical & Ultra-High Purity Electronic Grade Supplier
Supplier: Wenzhou Yingyue New Materials Co., Ltd.
Oxygen (O₂) is a colorless, odorless oxidizing gas essential for life and industry. Yingyue New Materials supplies full-series O₂ from 99.5% industrial grade to 6N ultra-high purity. Adopting advanced air separation technology, our oxygen features stable quality and low impurities. All products come with complete COA and MSDS, supporting global export and customized solutions.
Parameter | Details |
Product Name | Oxygen (O₂), Compressed Oxygen, Liquid Oxygen |
Chemical Formula | O₂ |
Molecular Weight | 32.00 g/mol |
CAS No. | 7782-44-7 |
EINECS No. | 231-956-9 |
UN No. | UN 1072 (Compressed), UN 1073 (Refrigerated Liquid) |
Hazard Class | 2.2 Non-flammable Gas, 5.1 Oxidizing Substance |
Basic Industrial Grade | 99.5% (GB/T3863-2025) |
Medical Grade | 99.5%+ (Pharmacopoeia Standard) |
Ultra-High Purity Grade | 99.999% (5N), 99.9999% (6N) |
Appearance | Colorless gas; Pale blue liquid at -183℃ |
Boiling Point | -183.0℃ (1 atm) |
Standard Filling | 40L/47L steel cylinder, 13.5±0.5MPa (20℃) |
Standard Valve | QF-2 (CGA540 customizable) |
Purity Grade & Impurity Control
We provide full-gradient purity oxygen to meet diverse industrial, medical and high-end manufacturing needs, with strict batch-by-batch COA certification:
Suitable for metal cutting/welding, steelmaking and general industrial oxidation. Controlled impurities: Argon ≤0.5%, Moisture ≤20ppm, no harmful residues. Compliant with the latest GB/T3863-2025 national standard.
Meets global pharmacopoeia standards for respiratory therapy, anesthesia and emergency care. Strictly controlled: CO₂ ≤0.03%, CO ≤5ppm, Moisture ≤67ppm, ensuring safe medical use.
3. Electronic Grade (99.999%-99.9999%, 5N/6N)
For semiconductor manufacturing and precision electronics. After deep purification: Total hydrocarbons ≤0.1ppm, Moisture ≤0.5ppm, Metal ions ≤1ppb, ideal for wafer oxidation and thin film deposition.
Physical & Chemical Properties
Oxygen is a highly reactive oxidizing gas that supports combustion but is not flammable itself. At standard conditions, it is colorless, odorless and slightly denser than air (1.429g/L). It condenses to a pale blue liquid at -183℃ and solidifies at -218.4℃.
Chemically, oxygen reacts with most elements and compounds, especially at high temperatures. It is slightly soluble in water (30mL/L at 20℃) and more soluble in organic solvents. Liquid oxygen exhibits strong paramagnetic properties.
Packaging & Transportation Solution
We offer standardized packaging for global markets, supporting both small trial orders and bulk supply:
• Global Standard Cylinders: 4L, 10L, 40L, 47L seamless steel cylinders with QF-2 valves. DOT/ISO certified cylinders available for European and American markets.
• Liquid Oxygen Tanks: 200L-5000L cryogenic insulated tanks for large-volume industrial use, with low evaporation loss.
• Bulk Transportation: ISO tank containers and dedicated cryogenic trucks for bulk delivery, ensuring continuous supply for factories.
• Customization: Special valve configurations (CGA540, BS341) and cylinder colors available upon request.
Oxygen is one of the most widely used industrial gases across multiple sectors:
1. Metal Processing: Oxy-fuel cutting/welding, steelmaking, non-ferrous metal smelting
2. Medical & Healthcare: Respiratory therapy, anesthesia, hyperbaric oxygen treatment, emergency rescue
3. Chemical Industry: Oxidation reactions, ethylene oxide production, wastewater treatment
4. Electronics: Semiconductor wafer oxidation, plasma etching, LED manufacturing
5. Aerospace: Rocket propellant, life support systems
6. Scientific Research: Laboratory analysis, combustion studies, material testing
✅ Full Purity Coverage: Complete grades from industrial 99.5% to electronic 6N ultra-high purity
✅ Latest Standard Compliance: Adheres to GB/T3863-2025 and GB/T14599-2025 national standards
✅ Strict Quality Control: Each batch tested for impurities with official COA and MSDS provided
✅ Global Export Ready: DOT/ISO certified packaging, complete customs clearance documents
✅ Stable Supply Capacity: Factory direct supply with sufficient inventory for bulk orders
✅ Professional Support: Technical guidance for safe storage, handling and application
All oxygen products comply with UN 1072/1073 international transportation standards and global safety regulations. We provide comprehensive export documentation including MSDS, COA, and certification of origin.
Safety Notes: Oxygen accelerates combustion; keep away from oil, grease and flammable materials. Use only oxygen-clean equipment. Liquid oxygen can cause severe frostbite; wear appropriate protective gear.
Company Name: WENZHOU YINGYUE NEW MATERIALS CO., LTD
Official Website: www.yycheme.com
Email: info@yycheme.com
WhatsApp: +8618966258719
WENZHOU YINGYUE NEW MATERIALS CO., LTD is a professional Chinese manufacturer and exporter of industrial gases, cryogenic liquids and fine chemical products. With advanced production facilities and strict quality management systems, we provide reliable one-stop procurement solutions for customers worldwide.

Contact: Jiang.S
Phone: +86-19304758719
E-mail: info@yycheme.com
Whatsapp:+86-18966258719
Add: Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, 325604, China