[steiner]

Hi, everyone. I'm currently looking for an suitable exothermic reaction that gives out temperature around 100-150°C for at least 10 min.

I have tried with calcium oxide + water but did not get the result that I wanted for.

I am willing to consider any reaction that can reach the temperature that I wanted for. Any help would be appreciated.

[Corribus]

Chemical reactions give out (or absorb) a specific quantity of heat. The degree of temperature change associated with a chemical reaction is related to the heat absorbed or released, but other factors will be involved, including the amount of reactants, environmental conditions (external temperature, which impacts the reaction rate) their concentration (if in solution), the type of reaction vessel, and the heat capacity of the environment (also very important in solution). Therefore you can't answer this question generally (mix A and B to get temperature T). More parameters have to be defined. Just because a system doesn't give you the desired output under a certain set of conditions doesn't mean it can't work if you change the system appropriately.

[Arkcon]

To say what Corribus: has said in another way, if you need an exothermic reaction, burning the required amount of fuel in air will generate heat.  And if you have enough fuel, and concentrate the heat generated, you will raise the temperature of something else.  If you need to get 100 grams of something from 0 to 100 °C, just get 200 grams of that something, heat it to 200 °C, and let them touch (excluding loss.)

Presumably, those plans won't work for your application, but you'll have to tell us why.

[billnotgatez]

Check our previous discussion on flame less heat

http://www.chemicalforums.com/index.php?topic=78491.msg286333#msg286333