Can 35% H2O2 be used in rocket engines?

[indy1687]

hey,

I have read in Rocket Propulsion Elements by Sutton and Biblarz that hydrogen peroxide is used as a oxidiser in rocket engines much like liquid oxygen, but it says that concentrations of 70% and upwards are used. My qustion is can food grade 35% H2O2 be used in a rocket engine setup? Is the concentration high enough? Will the overall result be just a lower thrust form the engine?

Thanks for your time.
Indy1687

 

[IRstuff]

Isn't it diluted with WATER?

TTFN

 

[kenvlach]

IRstuff is right -- you'd have a steam-powered rocket!

The concentrated hydrogen peroxide sold to the average user, both reagent & technical grades, is 48-50 wt%, balance water. There's some danger of spontaneous decomposition, so stricter safety rules apply for above 50% wt%. A stabilizer is often added, as well.

 

[vti]

You may want to check out the General Kinematics website,

http://www.gkllc.com/.

They have a lot of info on hydrogen peroxide use in propulsion.

 

[indy1687]

Thanks for all your input and help. It has been very useful.

 

[MadSplinter]

H2O2 in low percentage is not hypergolic.
Furthermore, it is extremely difficult to ignite, and to obtain a stable combustion from it

Everything should be made as easy as possible, but not easier

Albert Einstein