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轻质碳氢化合物之物质表
  丙 烷
Propane		 n-丁 烷
n-Butane		 异丁烷
Isobutane		 丙 烷
Propylene
分子式
Molecular formula		 C3H8 nC4H10 iC4H10 C3H6
分子量
Molecular weight		 44.097 58.124 58.124 42.081
气体密度(Kg/m3)
Gas density(15.6℃ 1atm)		 1.8954 2.5379 2.5303 1.8044
液体密度Kg/l
Liquid density		 15℃ 0.5076 0.5847 0.5633 0.5226
20℃ 0.5005 0.5788 0.6672 0.5139
25℃ 0.4928 0.5730 0.5510 0.5053
气体比热25℃定压
Vapor specific heat at constant pressure 25℃ kcal/kg℃		 0.3985 0.3963 0.3981 0.3629
液体比热25℃定压
Liuqid specific heat at constant pressure 25℃ kcal/kg℃　		 0.6023 0.5748 0.5824 0.6110
沸点 1 atm ℃
Boiling point		 -42.04 -0.50 11.72 -47.72
融点 1 atm ℃
Melting point		 -187.60 -138.36 -159.60 -185.25
临界温度℃
Critical temperature		 96.67 152.03 134.99 91.60
临界压力(1 atm)
Critical pressure		 41.94 37.47 36.00 45.50
热膨胀系数(l/c)15.6℃
Expansion coefficient		 0.00274 0.00211 0.00214 0.00340
蒸发潜热
沸点 1atm kcal/kg℃
Latent heat of vaporization		 101.76 92.09 87.58 104.62
蒸气压 1 atm ℃
Vapor pressure		 -42.1 -0.5 -0.5 -47.7
爆炸极限(vol%)
Explosion limit		 上Above 9.5 8.4 8.4 11
下Down 2.1 1.8 1.8 2.4
理论空气量15.6℃
(1 atm Nm3/Nm3)
Theoretic air volume		 23.8 30.9 30.9 21.4
总发热量
Gross heating value
kcal/kg
kcal/Nm3		 12040
24320		 11840
32010		 11820
31530		 11770
22540
净发热量
Net heating value
kcal/kg
kcal/Nm3		 11070
22350		 10920
29510		 10890
29050		 11000
21070