Purity |
≥99.999% (5.0 grade) or higher, with minimal impurities (O₂, H₂O, N₂ ≤ 1 ppm) |
Applications |
– Welding/Metalworking: Shielding gas for TIG welding and laser cutting |
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– Semiconductors: Carrier gas in CVD processes and etching |
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– Healthcare: Cryotherapy (e.g., removing warts) and MRI cooling |
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– Research: Spectroscopy, particle accelerators, and cryogenics |
Key Properties |
– Colorless, odorless, non-flammable |
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– High thermal conductivity and chemical inertness |
Safety |
– Asphyxiation risk in poorly ventilated areas (displaces oxygen) |
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– Avoid direct contact with skin/eyes (cryogenic liquid form) |
Storage |
– Compressed gas cylinders (e.g., 50L, 100L) at 150–200 bar pressure |
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– Store upright in cool, dry environments away from flammable materials |
Certifications |
Compliance with ISO 14175. ASTM G108. and medical device regulations |