附录 A 常用可燃气体、蒸汽特性 表A 常用可燃气体、蒸汽特性表序号物质名称引燃温度（℃）/组别沸点（℃）闪点（℃）爆炸浓度（V％）火灾危险性分类蒸气密度kg/m3备注下限上限1甲烷540/T1-161.5气体5.015.0甲0.77液化后为甲A2乙烷515/T1-88.9气体3.015.5甲1.34液化后为甲A3丙烷466/T1-42.1气体2.19.5甲2.07液化后为甲A4丁烷405/T2-0.5气体1.98.5甲2.59液化后为甲A5戊烷260/T336.07<-40.01.47.8甲B3.22 6己烷225/T368.9-22.81.17.5甲B3.88 7庚烷215/T398.3-3.91.16.7甲B4.53 8辛烷220/T3125.6713.31.06.5甲B5.09 9壬烷205/T3150.7731.00.75.6乙A5.73 10环丙烷500/T1-33.9气体2.410.4甲1.94液化后为甲A11环戊烷380/T2469.4<-6.71.4 甲B3.10 12异丁烷460/T1-11.7气体1.88.4甲2.59液化后为甲A13环己烷245/T381.7-20.01.38.0甲B3.75 14异戊烷420/T227.8<-51.11.47.6甲B3.21 15异辛烷410/T299.24-12.01.06.0甲B5.09 16乙基环丁烷210/T371.1<-15.61.27.7甲B3.75 17乙基环戊烷260/T3103.3<211.16.7甲B4.40 18乙基环己烷262/T3131.7350.96.6乙A5.04 19甲基环己烷250/T3101.1-3.91.26.7甲B4.40 20乙烯425/T2-103.7气体2.736甲1.29液化后为甲A续表A 常用可燃气体、蒸汽特性表序号物质名称引燃温度（℃）/组别沸点（℃）闪点（℃）爆炸浓度（V％）火灾危险性分类蒸气密度kg/m3备注下限上限21丙烯460/T1-47.2气体2.011.1甲1.94液化后为甲A221—丁烯385/T2-6.1气体1.610.0甲2.46液化后为甲A232—丁烯(顺)325/T23.7气体1.79.0甲2.46液化后为甲A242—丁烯(反)324/T21.1气体1.89.7甲2.46液化后为甲A25丁二烯420/T2-4.44气体2.012甲2.42液化后为甲A26异丁烯465/T1-6.7气体1.89.6甲2.46液化后为甲A27乙炔305/T2-84气体2.5100甲1.16液化后为甲A28丙炔/T1-2.3气体1.7 甲1.81液化后为甲A29苯560/T180.1-11.11.37.1甲B3.62 30甲苯480/T1110.64.41.27.1甲B4.01 31乙苯430/T2136.2151.06.7甲B4.73 32邻—二甲苯465/T1144.4171.06.0甲B4.78 33间—二甲苯530/T1138.9251.17.0甲B4.78 34对—二甲苯530/T1138.3251.17.0甲B4.78 35苯乙烯490/T1146.1321.16.1乙A4.64 36环氧乙烷429/T210.56<-17.83.6100甲A1.94 37环氧丙烷430/T233.9-37.22.837甲B2.59 38甲基醚350/T2-23.9气体3.427甲2.07液化后为甲A39乙醚170/T435-451.936甲B3.36 40乙基甲基醚190/T410.6-37.22.010.1甲A2.72 41二甲醚240/T3-23.7气体3.427甲2.06液化后为甲A42二丁醚194/T4141.1251.57.6甲B5.82 43甲醇385/T263.9116.736甲B1.42 44乙醇422/T278.312.83.319甲B2.06 45丙醇440/T297.2252.113.5甲B2.72 46丁醇365/T2117.028.91.411.2乙A3.36 47戊醇300/T3138.032.71.210乙A3.88 48异丙醇399/T282.811.72.012甲B2.72 49异丁醇426/T2108.031.61.719.0乙A3.30 50甲醛430/T2-19.4气体7.073甲1.29液化后为甲A51乙醛175/T421.1-37.84.060甲B1.94 52丙醛207/T348.9-9.4～7.22.917甲B2.59 53丙烯醛235/T351.7-26.12.831甲B2.46 54丙酮465/T156.7-17.82.612.8甲B2.59 55丁醛230/T376-6.72.512.5甲B3.23 56甲乙酮515/T179.6-6.11.810甲B3.23 57环已酮420/T2156.143.91.18.1乙A4.40 58乙酸465/T118.342.85.416乙A2.72 59甲酸甲酯465/T132.2-18.95.023甲B2.72 60甲酸乙酯45554.4-202.816甲B3.37 61醋酸甲酯501/T60-103.116甲B3.62 62醋酸乙酯427/T277.2-4.42.211.0甲B3.88 63醋酸丙酯450/T101.714.42.03.0甲B4.53 64醋酸丁酯425/T2127221.77.3甲B5.17 65醋酸丁烯酯427/T2717.77.02.6 甲B3.88 66丙烯酸甲酯415/T279.7-2.92.825甲B3.88 67呋喃390/T31.1<02.314.3甲B2.97 68四氢呋喃321/T266.1-14.42.011.8甲B3.23 69氯代甲烷623/T1-23.9气体10.717.4甲2.33液化后为甲A70氯乙烷519/T12.2-503.815.4甲A2.84 71溴乙烷511/T137.8<-206.711.3甲B4.91 72氯丙烷520/T246.1<-17.82.611.1甲B3.49 73氯丁烷245/T276.6-9.41.810.1甲4.14液化后为甲A74溴丁烷265/T210218.92.66.6甲B6.08 75氯乙烯413/T2-13.9气体3.633甲2.84液化后为甲A76烯丙基氯485/T145-322.911.1甲B3.36 77氯苯640/T1132.228.91.37.1乙A5.04 781，2—二氯乙烷412/T283.913.36.216甲B4.40 791，1—二氯乙烯570/T137.2-17.87.316甲B4.40 80硫化氢260/T3-60.4气体4.345.5甲1.54 81二硫化碳90/T646.2-301.35.0甲B3.36 82乙硫醇300/T335.0<26.72.810.0甲B2.72 83乙腈524/T181.65.64.416.0甲B1.81 84丙烯腈481/T177.203.017.0甲B2.33 85硝基甲烷418/T2101.135.07.363乙A2.72 86硝基乙烷414/T2113.827.83.45.0甲B3.36 87亚硝酸乙酯90/T617.2-353.050甲B3.36 88氰化氢538/T126.1-17.85.640甲B1.16 89甲胺430/T2-6.5气体4.920.1甲2.72液化后为甲A90二甲胺400/T27.2气体2.814.4甲2.07 91吡。