What's flame temp. of isopropyl alcohol!

[ironizer]

I've searched all over the place, and i can't find it. So does anyone know what the flame temperature of isopropyl (rubbing) alcohol is?

 

P.S. Doesn't matter if it's 70%, 99%, or 100%

[RyanJ]

Here is the quation for the reactioN:

 

[ce]2C3H7OH + 13O2 -> 6CO2 + 8H2O[/ce]

 

Work out the [math]\Delta H[/math] and you have your answer

 

Cheers,

 

Ryan Jones

[ironizer]

I was looking for an answer in degrees, because i suck at chem. forumula calculation stuff

[Darkblade48]

Wouldn't the flame temperature be dependent on the portion of the flame you are measuring (i.e. base of flame vs. tip of flame) and the amount of air/fuel ratio you have as well (i.e. lots of oxygen for a little bit of alcohol vs. minimal oxygen for a large volume of alcohol)?

[ironizer]

just spraying some and burning it in regular air. I just wanna have a general idea, don't need anything exact. I just want to know if it's chemically possible to melt something with it, so a variation of +/- 50-100 degrees C won't do any harm.

[Immunologist]

At 99%, it is 53 celsius deg

http://www.sigmaaldrich.com/cgi-bin/hsrun/Suite7/Suite/HAHTpage/Suite.HsSigmaAdvancedSearch.formAction'>http://www.sigmaaldrich.com/cgi-bin/hsrun/Suite7/Suite/HAHTpage/Suite.HsSigmaAdvancedSearch.formAction

 

When looking for such info, look at the MSDS of the product, it is the Material Safety Data Sheet, delivered by producers of the product. Sigma-Aldrich produces almost anything (http://www.sigmaaldrich.com)

 

Good Luck!

[woelen]

You cannot simply tell the flame temperature of any burning chemical. If you simply light some liquid, or when it is sprayed out into the air from a burner, there can be quite different temperatures. A nice example is the gas stove. The blue flames have a totally different temperature than the orange flames. So, it depends on how it is burnt.

 

However, in any case, the temperature will be at least a few hundreds of degrees Centigrade.

[YT2095]

the only really accurate thing you could determine with this alc would be with a bomb calorimeter to find the energy value of combustion.

[ironizer]

well, i saw those stats. that say for example gasoline can burn at 2400 degrees max, and natural gas like 3000 or something, because every flamable thing has a limit on high the temperature can get, i mean you can't make a 5000 degree fire with wood for example. I'm aware that the temp. depends on a lot of things like oxygen etc. but if isopropyl burns at around 50 C, dang, that's not even enough to make you say ouch