liquid ethanol does not burn (I think because there is no free O2 in the ethanol, but not sure on this one). What burns is a mixture of ethanol vapor and oxygen, with the right concentrations of ethanol vapors and oxygen.johnhopper1957 wrote:Flammable liquids have flash points and boiling points, ethanol has a temperature it needs to reach before ignition can occur.Lunabrille wrote:Sorry, I'm not trying to start anything but this comment brings a question to mind. If a hot surface is all it takes to ignite alcohol vapor, how come the alcohol vapor dosent ignite in or near a column? Certainly a hot surface and a much higher ABV.ExpatLad wrote:Using a microwave to heat a highly flammable liquid is an extremely BAD idea
There are plenty of hot surfaces close to the magnetron would could easily ignite alcohol vapors.
At BEST.... you're creating a nasty fire.... Worse, you'd be creating and heating a air fuel mixture in a confined space AKA a BOMB
This is a major safety issue, definitely something to avoid.
I 'believe' that flash point is the temperature where ethanol of a specific concentration is producing enough vapor to light. I am pretty sure that flash point does not 'mean' that ignition WILL happen. However, there IS an auto ignition temperature.
The first paragraph of this article explains things well. My initial thoughts (last paragraph) were correct. http://en.wikipedia.org/wiki/Flash_point" onclick="window.open(this.href);return false;" rel="nofollow
H.