Chemical Forums
Specialty Chemistry Forums => Citizen Chemist => Topic started by: Cupro Chlorous on April 27, 2006, 09:50:41 PM
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Well, this is not exactly chemistry related, but is there any temperature "limit" on a gas stove? The combustion of Natural Gas, which is primarily methane (CH4) produces heat energy. So, If I am attempting to fire clay on my home stove, is it possible? I need the clay to reach a temperature of at least 750o C.
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Wow, that seems hot! Do you mean in the oven or on the stove?
Edit: Well OK so you have changed the temperature, still seems high though. What about my question?
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Methane has a heat of combustion of around 900 kJ/mol I believe. I don't know how you could work out at what temperature it would burn at, say at sea level. Just crank stove up as high as it goes and see if it goes high enough. ;)
My guess is it probably won't. If it doesn't try building one. Create the kiln in your backyard. Just use high temperature bricks and mortar. You may want to double layer it and leave a place to put a burner where it will get O2. Maybe propane burners would work. Note how burners is plural.
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Hmm, the object is rather small, only about 3 in x 3 in , so I will try this out. 900 kJ/Mole is a HUGE amount of energy. A mole is 22.4 L so... still less(or about) 1 Cf of Gas.
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The art center where I live conducts pottery classes. I believe they use cone 6 when I submit my stoneware pottery for bisque firing. The temperature is even higher when I later ask for glaze firing. They run the process overnight with a ramp up and a ramp down.
http://www.miniworlddolls.com/evenheat/ConeInfo.htm
http://www.madehow.com/Volume-4/Pottery.html
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I have to correct myself.
We bisque fire at about cone 06 (zero six).
We glaze fire at about cone 6 (six).
That translates to about 1800 F for bisque firing and 2200 F for glaze firing.