Flammability limits of isobutane and its mixtures with various gases.
Flammability limits of isobutane and five kinds of binary mixtures of isobutane were measured by the ASHRAE method. Propane, nitrogen, carbon dioxide, chloroform, and HFC-125 (1,1,1,2,2-pentafluoroethane) were used as the counter part gases in the mixtures. The observed data were analyzed using the equations based on Le Chatelier's formula. The flammability limits of mixtures with propane were well explained by the original Le Chatelier's formula. The flammability limits of mixtures with nitrogen and the ones with carbon dioxide were adequately analyzed by the extended Le Chatelier's formula. It was found that the extended Le Chatelier's formula is also applicable to the flammability limits of mixtures with chloroform and HFC-125.
Kondo
Shigeo
S
National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. s.kondo@aist.go.jp
Takizawa
Kenji
K
Takahashi
Akifumi
A
Tokuhashi
Kazuaki
K
Sekiya
Akira
A
D002073:Butanes / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry; D002725:Chloroform / Q000737:chemistry; D005107:Explosions / Q000517:prevention & control*; D005390:Fires / Q000517:prevention & control*; D005466:Fluorocarbons / Q000737:chemistry; D005740:Gases / Q000737:chemistry*; D008422:Materials Testing; D009584:Nitrogen / Q000737:chemistry; D014835:Volatilization
D002073:Butanes; D005466:Fluorocarbons; D005740:Gases; D002245:Carbon Dioxide; C078256:pentafluoroethane; D002725:Chloroform; D009584:Nitrogen