[AR] Re: [AR] RE: [AR] Re: [AR] RE: [AR] Re: [AR] RE: [AR] Re: [AR] Re: [AR] Re: “Transitioning space propulsion to a nitrous-based industry standard”

  • From: roxanna Mason <rocketmaster.ken@xxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Tue, 4 Apr 2023 17:20:40 -0700

Interesting, I used to use it to make N2O4 from 68% nitric acid.

Ken

On Tue, Apr 4, 2023 at 4:59 PM Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx>
wrote:

Could’ve been. Manganese Dioxide is a known catalyst for HTP IIRC. With a
reactive metal in the fuel like Al, it wouldn’t surprise be for the
exothermic decomposition to provide enough energy to activate a reaction
with the reactive metal.



Troy



*From:* arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> *On
Behalf Of *roxanna Mason
*Sent:* Wednesday, April 5, 2023 9:53 AM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Re: [AR] RE: [AR] Re: [AR] RE: [AR] Re: [AR] Re: [AR] Re:
“Transitioning space propulsion to a nitrous-based industry standard”



There is a solid compound we used to get our 98%/HTPB/AL hybrid motors
ignited spontaneously, we called it 'hypergolic paint'

. Eric Wernermont has the formula. It was gray in color, possibly
manganese dioxide.



Ken



On Tue, Apr 4, 2023 at 4:48 PM Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx>
wrote:

Matthew, you might be getting confused with Nitric Acid (RFNA or WFNA). I
can’t recall any straight alcohol being hypergolic with HTP. I would
definitely be quite excited to learn if there was something not too exotic
available.



Troy



*From:* arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> *On
Behalf Of *Matthew JL
*Sent:* Wednesday, April 5, 2023 9:42 AM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Re: [AR] RE: [AR] Re: [AR] Re: [AR] Re: “Transitioning
space propulsion to a nitrous-based industry standard”



Troy - believe furfuryl alcohol is one?



On Tue, Apr 4, 2023 at 7:04 PM Troy Prideaux <troy@xxxxxxxxxxxxxxxxxxxxx>
wrote:

What various alcohols would they be (or at least one of them be)?



Troy



*From:* arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> *On
Behalf Of *Matthew JL
*Sent:* Wednesday, April 5, 2023 8:54 AM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Re: [AR] Re: [AR] Re: “Transitioning space propulsion to
a nitrous-based industry standard”



Why not hydrogen peroxide in monoprop or one of the various alcohols that
it’s hypergolic with?




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