Many of the Zoos have them, but often they are only with a few of the animals. The Zoo has done alot of updating their site and park trying to compete with some of the larger Zoos. From what I could find out this Zoo also claims to be the oldest formal Zoo in the US.
What this means is that toluene will ignite with a lower amount of vapour in the air. So the upshot is that Hexane is more flammable but requires slightly more vapour in the air to ignite than does toluene. Edited to correct the flash point as the MSDS I looked for hexane quoted in Fahrenheit not Celsius. I have now converted the data.
The ignition temperature is affected by the chemical properties of the flammable liquid. When a flammable liquid is in its liquid state, it will not ignite. It will only burn when in its gaseous state.In addition to ignition temperature, other properties associated with the flammability of a liquid are its flash point, flammable range, and vapor density.The flash point is the temperature at which a flammable liquid vaporizes and is therefore able to ignite.Liquids with a flash point under 40 Â°C are considered combustible liquids. Gasoline has a flash point of about -45 Â°C.he ignition temperature is affected by the chemical properties of the flammable liquid. When a flammable liquid is in its liquid state, it will not ignite. It will only burn when in its gaseous state.