|Aug10-12, 05:18 AM||#1|
Potassium Nitrate Products
The combination of potassium nitrate and sorbitol and commonly used by hobbyists as a propellant for rocket motors.
The combustion equation is given below:
I have a few very simple questions based on the chemistry of such a reaction.
Firstly, many people do not use stoichiometric quantities of each reagent. Why is this? I thought the idea was to get the 'exact' amounts as to optimize the reaction? Or is this simply optimizing the efficiency of the utilization of the reagents into products?
Secondly, there is an oxygen term there; does this need to be available as a gas? For example, a lot of people seem to add Iron Oxide to this mix, probably to give this oxygen component. My question is, why iron oxide - can anything with an oxygen work?
Thanks for reading,
|Aug10-12, 03:07 PM||#2|
Yes, standard combustion uses gaseous oxygen. I'm not sure about the iron oxide chemistry. It may act as a catalyst, or alter the actual reaction mechanism.
I doubt iron oxide is the oxygen source, because that would require a large amount, and require some sort of splitting reaction.
|Similar Threads for: Potassium Nitrate Products|
|Potassium nitrate for orbit?||Astrophysics||3|
|Oxidizing power of potassium chlorate vs. nitrate||Chemistry||8|
|Sulfur Extraction and Potassium Nitrate||Chemistry||1|
|Questions concerning cross products, dot products, and polar coordinates||Introductory Physics Homework||1|