×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Can 35% H2O2 be used in rocket engines?

Can 35% H2O2 be used in rocket engines?

Can 35% H2O2 be used in rocket engines?

(OP)
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

RE: Can 35% H2O2 be used in rocket engines?

Isn't it diluted with WATER?

TTFN



RE: Can 35% H2O2 be used in rocket engines?

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.

RE: Can 35% H2O2 be used in rocket engines?

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.

RE: Can 35% H2O2 be used in rocket engines?

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

RE: Can 35% H2O2 be used in rocket engines?

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

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources