[ernest1039401]

Hi, I'm currently a few days away from my coursework deadline, and I need some quick advice. Are there any industrial or practical uses for the decomposition of hydrogen peroxide using either manganese dioxide or potassium iodide? I need a personal engagement factor for my coursework, but I can't find any.

[chenbeier]

Not that I know. Peroxide in combination of acid and/or also iron-II are etching agents.

[Enthalpy]

In Soyuz's RD107 and RD108 engines, high-test peroxide decomposes to produce hot gases that move the turbine to rotate the kerosene and oxygen pumps. The catalyst is permanganate according to Wiki
https://en.wikipedia.org/wiki/RD-107
but I believe to have read MnO₂ elsewhere.
Nice article in Russian, Google can translate:
http://www.lpre.de/energomash/RD-107/index.htm

This pumping cycle was derived from torpedoes. Some may still use it, and submarines maybe too, but I suppose all replaced it with batteries.