常用特种气体的性质，常用特种气体的性质，包括特气的名称、分子式、特种气体密度、温度、特气临界压力、特种气体相对密度、熔点、沸点、液体密度
| 气体名称 | 分子式 | 气体密度kg/m3 | 临界温度 ℃ | 临界压力 mpa | 相对密度kg/m3 | 熔点℃ | 沸点℃ | 液体密度kg/m3 |
|
空气 |
air |
1.2931 |
140.6 |
3.769 |
--- |
--- |
-194.35 |
876.21 |
|
氮气 |
n2 |
1.2474 |
-146.9 |
3.4 |
0.967 |
-210.0 |
-195.8 |
869.5 |
|
氟气 |
f2 |
1.554 |
-128.8 |
5.215 |
1.312 |
-219.62 |
-188.1 |
1507 |
|
氢气 |
h2 |
0.0899 |
-239.9 |
1.297 |
0.0695 |
-259.2 |
-252.8 |
70.973 |
|
氧气 |
o2 |
1.4289 |
-118.5 |
5.043 |
1.105 |
-218.8 |
-183 |
1141 |
|
一氧化碳 |
co |
1.2504 |
-140.2 |
3.499 |
0.967 |
-205.1 |
-191.5 |
789 |
|
二氧化碳 |
co2 |
1.977 |
31 |
7.3815 |
1.53 |
-56.6 |
-78.5 |
929.5 |
|
笑气 |
n2o |
1.977 |
36.4 |
7.254 |
1.53 |
-90.8 |
-88.5 |
1281.5 |
|
一氧化氮 |
no |
1.34 |
-92.9 |
6.55 |
1.34 |
-163.6 |
-151.8 |
1300 |
|
二氧化氮 |
no2 |
3.4 |
158.2 |
1.0132 |
2.62 |
-11.2 |
21.2 |
1443 |
|
二氧化硫 |
so2 |
3.049 |
157.6 |
7.884 |
2.263 |
-75.5 |
-10 |
1458 |
|
he |
0.1785 |
-268 |
0.229 |
0.138 |
-272.1 |
-268.94 |
125.2 |
|
|
氖气 |
ne |
0.9 |
-228.7 |
2.72 |
0.696 |
-248.6 |
-246.1 |
1207 |
|
氩气 |
ar |
1.7841 |
-122.4 |
4.864 |
1.38 |
-189.2 |
-185.9 |
1416.6 |
|
氪气 |
kr |
3.74 |
-63.8 |
5.49 |
2.89 |
-157.4 |
-153.4 |
2413 |
|
xe |
5.887 |
16.6 |
5.838 |
4.553 |
-102.8 |
-108.1 |
3057 |
|
|
三氟化硼 |
bf3 |
2.867 |
-12.2 |
4.985 |
2.38 |
-127.1 |
-99.8 |
1589 |
|
sf6 |
6.52 |
45.5 |
3.759 |
5.114 |
-50.8 |
-63.7 |
1880 |
|
|
硅烷 |
sih4 |
1.42 |
-3.4 |
4.843 |
1.114 |
-185 |
-111.5 |
711 |
|
氨气 |
nh3 |
0.7708 |
132.4 |
11.277 |
0.597 |
-77.7 |
-33.4 |
729 |
|
磷烷 |
ph3 |
1.531 |
51.6 |
6.535 |
1.184 |
-133.8 |
-87.7 |
740 |
|
砷烷 |
ash3 |
4.93 |
99.9 |
6.6875 |
2.69 |
-113.5 |
-62.5 |
1634 |
|
氟化氢 |
hf |
0.922 |
188 |
6.485 |
0.713 |
-83.4 |
19.5 |
968 |
|
硫化氢 |
h2s |
1.539 |
100.4 |
9.01 |
1.188 |
-85.5 |
-60.3 |
914.9 |
|
氯化氢 |
hcl |
1.5 |
51.4 |
8.258 |
1.267 |
-114.2 |
-85 |
1191 |
|
四氯化碳 |
ccl4 |
6.9015 |
283.2 |
4.5596 |
5.35 |
-23.77 |
76.6 |
1470 |
|
溴甲烷 |
ch3br |
3.97 |
194 |
5.22 |
3.355 |
-93.6 |
3.56 |
1721.2 |
|
氯乙烷 |
c2h5cl |
2.642 |
187.2 |
5.2689 |
2.23 |
-136.4 |
12.3 |
877.2 |
|
甲烷 |
ch4 |
0.7163 |
-82.1 |
4.64 |
0.555 |
-182.6 |
-161.5 |
422.62 |
|
乙烯 |
c2h4 |
1.261 |
9.9 |
5.12 |
0.975 |
-169.2 |
-103.7 |
567.2 |
|
正丁烷 |
正c4h10 |
2.544 |
152 |
3.7966 |
2.11 |
-138.4 |
-0.5 |
601.4 |
|
环氧乙烷 |
c2h4o |
1.795 |
195.8 |
7190 |
1.49 |
-112.5 |
10.5 |
887 |
|
异丁烷 |
异c4h10 |
2.487 |
135 |
3.65 |
2.064 |
-159.6 |
-11.7 |
593.4 |
|
丙烷 |
c3h8 |
2.005 |
96.8 |
4.266 |
1.55 |
-187.7 |
-42.1 |
582.5 |
|
乙炔 |
c2h2 |
1.1747 |
35.2 |
6.19 |
0.908 |
-80.55 |
-75 |
610 |
|
丙稀 |
c3h6 |
1.7855 |
91.8 |
4.6 |
1.48 |
-185.2 |
-47 |
613.9 |
