Overview
Oxygen is a diatomic gas (O₂) constituting 21% of Earth's atmosphere. It is vital for respiration and combustion processes. Liquid oxygen (LOX) is produced by fractional distillation of air and stored at cryogenic temperatures (-183°C). Industrial oxygen production reached over 100 million metric tons annually, with major applications in healthcare (respiratory support), metal fabrication (oxy-fuel cutting), and rocketry (oxidizer for spacecraft propulsion). LOX offers higher storage density than gaseous oxygen, making it ideal for large-scale or mobile applications.
Physical and Chemical Properties
Gaseous oxygen is paramagnetic and slightly denser than air. It becomes pale blue liquid when cooled below -183°C, with a density 800 times greater than its gaseous form. LOX has strong oxidizing properties and reacts violently with organic materials. Notably, oxygen exhibits all three common states of matter: solid (below -218.79°C), liquid (-218.79°C to -182.95°C), and gas (above -182.95°C). Its solubility in water decreases with temperature, affecting aquatic life and industrial aeration processes.
Main Applications
Medical: Oxygen therapy for COPD and COVID-19 treatment, comprising ~20% of global medical gas demand. Steelmaking: Basic oxygen furnaces use 99.5% pure O₂ to remove carbon impurities, accounting for ~55% of industrial usage. Aerospace: LOX serves as the oxidizer in liquid-fueled rockets like SpaceX's Falcon 9. Environmental: Oxygen injection improves wastewater treatment efficiency by 30-50% compared to air. Emerging applications include oxy-combustion for carbon capture and oxygen-enriched combustion in glass manufacturing.
Safety and Storage
Oxygen requires strict handling protocols: storage areas must be fireproof, well-ventilated, and free from hydrocarbons. LOX containers should use vacuum-insulated designs to minimize boil-off (typically 0.3-0.5% daily loss). Safety equipment includes oxygen monitors (alarms at >23.5% concentration) and cryogenic PPE for LOX handling. Transport regulations differ for gaseous (DOT 3A/3AA cylinders) versus liquid (ASME-approved cryogenic trailers) forms, with road transport limited to 20,000 liters per vehicle in most jurisdictions.
B2B Procurement Guide
Key specifications include purity (medical 99.5-99.99%, industrial 90-99%), delivery method (cylinders, bulk liquid, or on-site generation), and flow rate requirements. On-site oxygen generators offer 10-30% cost savings for continuous users exceeding 500 m³/day. Supplier evaluation should assess ISO 13485 certification for medical oxygen, cryogenic storage capacity for LOX, and emergency response capabilities. Contracts often include take-or-pay clauses for bulk LOX, with price adjustments based on energy costs (electricity constitutes ~60% of production expenses).
Related Manufacturers
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：[]
- 主营：液氩、液氮、氩气、液氧、氧气、氮气
- 主营：气化器、汽化器、调压阀、液氧气化装置、液氧、液氧储罐、工业高纯液氧气体、液态氧气、瓶装液态氧气、减压阀组、燃气设备、汽化减压撬、低温气化设备、燃气减压装置、压力调节阀组、天然气散冷设备、调压装置减压阀、液氮、液氩、二氧化碳、液体二氧化碳、液氮储罐、液氮气体、高纯液氮气体、工业液氮气体
- 主营：氮气液氮、氩气液氩、二氧化碳、氧气液氧、乙炔、甲烷、乙烯、六氟化硫、准分子激光混合气、同位素气体、氖气、氪气、氘气、氢气、一氧化氮、硅烷、氦气、食品级二氧化碳、激光混合气体、液氦、高纯氦气、食品级氮气、高纯二氧化碳、高纯氮气
- 主营：储液罐、调压阀、真空管、氧气瓶、储存罐、存储罐、气化器、供气管、液氮管、制氮机、输送管、速冻机、节能管、汽化器、气化设备、供氮设备、精密仪器、低温容器、液体管道、低温储罐、电子元件、气体管道、液氮储罐、低温管道、燃气设备
- 主营：液氮储罐、二氧化碳罐、液氩储罐、液态氧气罐、液体氧气储罐、液体液氧储罐、液氧液体储罐、氧气罐、5立方液氧储罐、二氧化碳气瓶、液化天然气储罐、低温绝热气瓶、低温贮罐、液氮液体储罐、低温储罐、液氮罐、杜瓦瓶、液态二氧化碳储存罐、低温气体储罐、快易冷低温储罐、杜瓦罐、氩气储罐
- 主营：氩气、二氧化碳、氮气、氧气、混合气、氦气、甲烷、乙炔、乙烯、氢气、六氟化硫
- 主营：工业气体、二氧化碳、干空气、氧气、液氧、混合气、标准气、同位素、超高纯气体、食品级二氧化碳、电子气体、高纯氮气、高纯氩气、液氩、高纯氦气、液氮
- 主营：氮气、氩气、氦气、氧气、甲烷、二氧化碳、乙炔、氢气、混合气、氖气、氪气
- 主营：液氮储罐、二氧化碳储罐、液氩储罐、液氧储罐、天然气储罐、LNG储罐、压力容器、低温液体储罐、大型平底贮槽、储气罐、调压装置
- 主营：瓶装气体、高纯气体、食品级气体、氧气、液氧、乙炔、氮气、氩气、氢气、氦气、液氦、二氧化碳、甲烷、氨气、液氮、标准气、混合气、氢氮混合气、氢氩混合气、液氩、丙烷、食品级氮气、食品级二氧化碳、食品级液氮
- 主营：工业气体、液态氩气、高浓度氮气、高纯氧气、二氧化碳储罐、液态气体储罐
- 主营：氮气、氩气、二氧化碳、氧气、附近工业氧气供应站、工业氧气、混合气、液氮气体、工业气体供应站、工业气体储罐、工业气体、氩气购买、液氮、二氧化碳气体
- 主营：二氧化碳、保温液氮、生物样本、氧气、多功能液氮、疫苗冷链存储、气体模具清洗、快速制冷液氮、液氮、氦气、六氟化硫
- 主营：高纯氦气、高纯氮气、液氮、高纯氧气、氧气、液氧、高纯氩气、特种气体、液氩、二氧化碳、甲烷、氩气、标准气体、高纯氢气、六氟化硫、丙烷、混合气体、超纯氮气
- 主营：lng储罐、杜瓦瓶、液氮罐、氧气瓶、液氧储罐、lng储槽、lng气瓶、长管车、cng长管、钢瓶车、气储罐、罐车lng、液氮瓶、液氩罐、lng罐箱、lng低温、车载瓶、lng贮罐、汽车lng、储罐低温、液氮储罐