气体名称 | 化学式 | 纯度(%) | 杂质(ppm) |
甲烷 | CH4 | 99.9% | O2+Ar＜50 ,H2＜50, N2＜250 ,C2H6＜600, H2O＜50 |
99.99% | O2+Ar＜10,H2＜10, N2＜35 ,C2H6＜25, H2O＜15 |
99.999% | O2+Ar＜1,H2＜0.5, N2＜4 ,C2H6＜25, H2O＜3，CO2＜0.5，H2O＜0.1 |
乙烷 | C2H6 | 99.9% | O2≤50, N2≤40 ,HC≤1000 |
99.99% | O2≤2 ,HC≤100, N2≤5, H2O≤5 ,CO2≤5 |
乙烯 | C2H4 | 99.95% | O2≤5 ,CH4,+C2H6≤500, C2+C3≤10，H2O≤5,,H2≤5，CO2≤5，CO≤1，C2H2≤3 |
丙烷 | C3H8 | 99.95% | O2≤10, HC≤400 ,N2≤40, H2O≤5 ,CO2≤10 |
丙烯 | C3H6 | 99.5% | HC≤1000, C3H8≤4000 |
99.99% | N2≤10 ,C3H8≤100, C4H6-1.3≤5 ,CH4≤5 ,C4H10≤5, C2H6≤50, C4H8≤5 |
丙二烯 | C3H4 | 98% | 丙炔≤20000 |
丙炔 | C3H4 | 98% | 丙二烯≤20000 |
正丁烷 | C4H10 | 99.5% | O2≤15 ,H2O≤12 ,HC≤5000, CO+CO2≤10 |
异丁烷 | C4H10 | 99.5% | O2≤15 ,C3H8≤4000, C4(uns.)≤100, H2O≤15 ,n-C4H10≤2500, CO+CO2≤10 |
99.99% | O2≤10 ,C3H8≤10 ,C4(uns.)≤50, H2O≤5, n-C4H10≤50, CO+CO2≤10 |
丁烯-1 | C4H8 | 99.9% | H2O≤10 ,HC≤1000 |
顺-2-丁烯 | C4H8 | 99.4% | HC≤6000 |
反-2-丁烯 | C4H8 | 99.4% | HC≤6000 |
异丁烯 | C4H8 | 99.99% | H2O≤5, HC≤100 |
1.3-丁二烯 | C4H6 | 99.8% | O2≤5 ,N2≤10, HC≤2000 |
正戊烷 | C5H12 | 99.5% | C5H10＜0.1wt% i-C5H12: 0.4wt% |
异戊烷 | C5H12 | 99.3% | n-C5H12: 0.5% |