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Neon is the second lightest noble gas, after helium. Neon is a very typical gas, very difficult to turn into a liquid or a solid. Neon is a very inert element that rarely mixes with other elements. It is one of the noble gases.
| Ne | >99.999% | >99.999% | ||||||||
| H2O | <2.0 ppm | <2.0 ppm | ||||||||
| O2+Ar | <1.0 ppm | <0.02ppm+<0.01ppm | ||||||||
| N2 | <2.0 ppm | 1.269 ppm | ||||||||
| H2 | <1.0 ppm | <0.05 ppm | ||||||||
| CO | <0.2 ppm | <0.03 ppm | ||||||||
| He | <6.0 ppm | <0.05 ppm | ||||||||
| CO2 | <0.2 ppm | <0.03 ppm | ||||||||
| CH4 | <0.1 ppm | <0.02 ppm | ||||||||
| Total impurities | <10 ppm | <10 ppm | ||||||||
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