气体名称 | 化学式 | 纯度(%) | 杂质(ppm) |
氮气 | N2 | 99.999% | O2≤3, H2≤1, CO≤1, CO2≤1, CH4≤1, H2O≤3 |
99.9999% | H2O≤0.2, O2≤0.2, H2≤0.1, CO2≤0.1, CO≤0.1, CH4≤0.2 | ||
氢气 | H2 | 99.999% | O2≤1, N2≤5, CO≤1, CO2≤1, CH4≤1, H2O≤3 |
99.9999% | H2O≤1, O2≤0.2, N2≤0.4, CO2≤0.1, CO≤0.1, CH4≤0.2 | ||
氧气 | O2 | 99.999% | H2≤0.5, Ar≤2, N2≤5, CO2≤0.5, total hydrocarbon≤0.5, H2O≤2 |
99.9999% | H2≤0.1, Ar≤0.2, N2≤0.1, CO2≤0.1, total hydrocarbon≤0.1, H2O≤0.5 | ||
氩气 | Ar | 99.999% | H2≤0.5, O2≤1.5, N2≤4, CH4+CO+CO2≤1, H2O≤3 |
99.9999% | H2O≤0.2, O2≤0.2, H2≤0.1, CO2≤0.1, CO≤0.1, CH4≤0.2, N2≤0.5 | ||
氦气 | He | 99.999% | O2≤1, H2O≤2, H2≤1, 总烃≤3 |
99.9999% | H2O≤0.2, O2≤0.2, H2≤0.1, CO2≤0.1, CO≤0.1, CH4≤0.2, N2≤0.5 | ||
二氧化碳 | CO2 | 99.999% | O2≤1, H2O≤2, N2≤5, CO≤1, HC≤1 |
一氧化碳 | CO | 99.5% | H2≤3180,N2≤1350, O2≤60, H2O≤50 |
99.95% | N2≤350, O2≤50, H2O≤5 | ||
二氧化硫 | SO2 | 99.9% | O2+N2≤100, H2O≤10, 其他≤200 |
硫化氢 | H2S | 99.9% | SO2<100,CO2<300,H2O<5 |
一氧化氮 | NO | 99.5% | N2O≤4000, NO2≤2000, N2≤300, CO≤500 |
二氧化氮 | NO2 | 99.9% | N2≤20, O2≤5, H2O≤50 |
氧化亚氮(笑气) | N2O | 99.99% | CO2 <0.5, CO<0.1, total hydrocarbon<0.1, N2<90, O2<5, H2<2,Ar<0.5, H2O<1.0 |
包装:2-40(升)瓶装,还可提供其他无机高纯气体:如一氧化氮、二氧化氮、笑气(氧化亚氮)、氧硫化碳等。