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| Category | Details |
|---|---|
| Composition | – Nitrogen (N₂): Balance gas (typically 60–90% by volume) |
| – Carbon Monoxide (CO): 1–5000 ppm (toxic, combustion byproduct) | |
| – Helium (He): 1–20% (inert carrier, cryogenic cooling) | |
| – Oxygen (O₂): 1–10% (oxidizing agent, medical use) | |
| Key Applications | – Environmental Science: Air quality monitoring (CO emissions) |
| – Medical Research: Respiratory physiology and hyperbaric chambers | |
| – Industrial Safety: Calibrating multi-gas detectors (CO/O₂/flammables) | |
| – Welding: Shielding gas mixtures (e.g., He/O₂ for titanium) | |
| Physical Properties | – Toxicity: CO is odorless, tasteless, and lethal at high concentrations |
| – Flammability: O₂-enriched atmospheres increase fire risks | |
| – Helium: Lightest gas (0.1785 g/L), non-flammable | |
| Safety Precautions | – CO Exposure: Use in ventilated areas; monitor with real-time detectors (≤25 ppm TWA) |
| – Oxygen Enrichment: Avoid oils/greases (risk of spontaneous combustion) | |
| – Asphyxiation: Ensure O₂ levels ≥19.5% in confined spaces | |
| Storage & Handling | – High-pressure cylinders (e.g., 50L, 100L) at 150–200 bar pressure |
| – Store away from flammables/oxidizers; secure cylinders upright | |
| – Liquid helium requires cryogenic dewars and PPE (gloves, goggles) | |
| Certifications | Compliance with ISO 17025 (calibration), OSHA/EPA regulations, and ASTM D7606 (cryogenic safety) |
| Environmental Impact | – CO contributes to smog and ground-level ozone |
| – Helium is a non-renewable resource; prioritize recycling | |
| Shelf Life | 12–24 months when stored under recommended conditions (temperature: 15–25°C) |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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