Propane

Formula                  : C₃H₈ 
Physical Properties  : Appearance : colourless odourless gas (a small amount of an unpleasant-smelling 
                                    gas such as a thiol may be added to provide warning in the event of a leak.) 
                                 Melting point : -188 C 
                                 Boiling point : -44.5 C 
                                 Critical temperature : 96.67 C  
                                 Critical pressure : 41.94 atm 
                                 Vapour density : 1.55 
                                 Flash point : -104 C (open cup)  
                                 Explosion limits: 2.4% - 9.5 % 
                                 Autoignition temperature: 468 C

Toxicological Properties :
           • Breathing high concentrations causes a narcotic effect; however, the major property
                 is the exclusion of an adequate supply of oxygen to the lungs.
           • Hydrogen is not listed in the IARC, NTP or by OSHA as a carcinogen or potential
                carcinogen.
           • Frostbite effects are change in color of the skin to gray or white possibly followed by
                 blistering.
Reactivity Data    :  Stability : Stable
                              Incompatibility (Materials to Avoid) : Oxidizers
                              Hazardous Decomposition Products : None
                              Hazardous Polymerization : Will not occur
                              Conditions to Avoid : None