KRYPTON 99.999%

CAS NO. 7439-90-9

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Product Name	Krypton Gas (Kr) (5N Grade / Window Grade / Laser Grade)
CAS NO.	7439-90-9
Purity Specification (5N)	Assay: ≥ 99.999% • H₂O (Moisture): ≤ 2.0 ppm • O₂ + Ar: ≤ 1.5 ppm • N₂ (Nitrogen): ≤ 2.0 ppm • CO + CO₂: ≤ 0.5 ppm • THC (Hydrocarbons): ≤ 0.5 ppm • Xe (Xenon): ≤ 0.1 ppm Strict impurity control ensures stability in KrF laser discharge.
Key Applications	A versatile noble gas for energy efficiency and high-tech manufacturing: Insulated Windows (Energy Efficiency): Used as a filler gas in double/triple-pane windows. Krypton's low thermal conductivity (significantly lower than Argon) maximizes insulation in thinner glass units. Semiconductor Lithography: The active component in KrF Excimer Lasers (248nm), essential for manufacturing microchips at mature technology nodes. Satellite Propulsion: An emerging cost-effective propellant for Hall Effect Thrusters (Starlink satellites, etc.), offering a balance between performance and cost compared to Xenon. Lighting: Used in incandescent bulbs to reduce filament evaporation and increase brightness/lifetime. Also key for high-speed photographic flashes.
Cylinder Packaging	Standard Sizes: 40L / 50L Cylinder (~10,000L gas) Valve Connection: CGA 580 / DIN 6 / JIS (Customizable) Material: High-pressure Steel.