Excimer is a contraction of “Excited Dimer,”a description of a diatomic molecule in which the component atoms are bound in the excited state, but not in the ground state. The important gas molecules are rare gas halides including argon fluoride, krypton fluoride, and xenon chloride.
Neon is a rare atmospheric gas which is odourless, colourless, tasteless, nontoxic, monatomic and chemically inert. The concentration of Neon in the atmosphere, by volume percent, is 1.8 x 10-3.
Neon is principally shipped and used in gaseous form for excimer lasers, plasma displays, light bulbs, neon signs and R & D laboratory research
Purity Specification (Maximum impurity levels) *
| Contaminant | Research Grade (99.999%) |
UHP Grade (99.996%) |
Volume | Valve |
|---|---|---|---|---|
| Carbon Dioxide (CO2) | 0.5 ppm | 1.0 ppm | ||
| Carbon Monoxide (CO) | 0.5 ppm | 1.0 ppm | ||
| Helium (He) | 8.0 ppm | 35.0 ppm | ||
| Methane (CH4) | 0.5 ppm | 1.0 ppm | 25 Liters – 7500 Liters) | CGA 580 |
| Nitrogen (N2) | 1.0 ppm | 4.0 ppm | ||
| Oxygen (02) | 0.5 ppm | 1.0 ppm | ||
| Water (H20) | 0.5 ppm m | 1.0 ppm |
Xenon gas is odourless, colourless, tasteless, nontoxic, monatomic and chemically inert. The concentration of Xenon gas in the atmosphere, by volume percent, is 8.7 x 10-6.
Xenon gas is principally shipped and used in gaseous form for excimer lasers, light bulbs, window insulation, ion propulsion, medical applications and Research and Development laboratory research.
Purity Specification (Maximum impurity levels) *
| Contaminant | Research Grade (99.999%) |
UHP Grade (99.995%) |
Volume | Valve |
|---|---|---|---|---|
| Argon (Ar) | 1.0 ppm | 10.0 ppm | ||
| Carbon Dioxide (CO2) | 1.0 ppm | 2.0 ppm | ||
| Carbon Tetrafluoride (CF4) | 0.5 ppm | 2.0 ppm | ||
| Hydrogen (H2) | 2.0 ppm | 5.0 ppm | ||
| Krypton (Kr) | 5.0 ppm | 25.0 ppm | 12 Liters – 5000Liters) | CGA 580 |
| Nitrogen (N2) | 2.0 ppm | 5.0 ppm | ||
| Oxygen (02) | 0.5 ppm | 1.0 ppm | ||
| Oxygen (02) | 0.5 ppm | 1.0 ppm | ||
| Water (H20) | 0.5 ppm | 1.0 ppm | ||
| Total Hydrocarbons (THC) | 0.5 ppm | 1.0 ppm |
Krypton is a rare atmospheric gas which is odourless, colourless, tasteless, nontoxic, monatomic and chemically inert. The concentration of Krypton in the atmosphere by volume percent is 1.1 x 10-4.
Krypton is principally shipped and used in gaseous form for excimer lasers, light bulbs, window insulation and R & D laboratory research.
Purity Specification (Maximum impurity levels) *
| Contaminant | Research Grade (99.999%) |
UHP Grade (99.995%) |
Volume | Valve |
|---|---|---|---|---|
| Argon (Ar) | 2.0 ppm | 2.0 ppm | ||
| Carbon Dioxide (CO2) | 0.5 ppm | 1.0 ppm | ||
| Carbon Monoxide (CO) | 1.0 ppm | N/A | ||
| Carbon Tetrafluoride (CF4) | 0.5 ppm | 1.0 ppm | ||
| Hydrogen (H2) | 0.5 ppm | 2.0 ppm | 25 Liters – 10,000 Liters) | CGA 580 |
| Nitrogen (N2) | 2.0 ppm | 5.0 ppm | ||
| Oxygen (02) | 0.5 ppm | 1.0 ppm | ||
| Water (H20) | 0.5 ppm | 1.0 ppm | ||
| Xenon (Xe) | 5.0 ppm | 25.0 ppm | ||
| Total Hydrocarbons (THC) | 0.5 ppm | N/A |
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