wyattp4007

@ YT2095

I'm trying to find a way to produce both Barium Nitrate and Strontium Nitrate from the carbonates of each as well, without using HNO3.

From what I understand in your previous post, you can convert Barium Carbonate to Barium Chloride via HCl correct? How does the reaction of Barium Chloride and Ammonium Nitrate go, is it just a simple displacement reaction or is there heating involved like with the Strontium Carbonate? How about subbing the Barium Chloride with Strontium Chloride in the same process? I'm not very chemistry literate, so if you could clarify it for me it would be appreciated. Man I wish I'd taken chemistry in high school...

What would be the best nitrate salt to use for the process? I have Ammonium and Potassium nitrates to work with and can make Sodium Nitrate via the reaction of NH4NO3 and NaOH. What is the best route to go?

How do you get chemicals from them? I've been looking for a source of Parlon and Red Gum that isn't too expensive. What were their prices and what other chems do they sell?

Hi all! After seeing this thread I thought I'd give it a try, I have many 1/4" tubes I've been using for bottle rockets but never actually recorded the thrust of them, so I figured what the hey, let's see what I've got.

I just got done making a new spindle and rammer for 1/4" ID rockets the other day and tested a few out on my scale. The rocket spec's are:

Total Length - 2"
ID - 1/4"
OD - .335"
Fuel - Meal powder 1g
Core diameter/Nozzle Throat - .95"
Core length - 1/2"
Nozzle - 40 degree convergent to 10 degree divergent.

Total Engine Weight - 2.35g (no load)
Peak Thrust - 36.7g
Total burn length - 1 second

Thrust to weight ratio - 15.6

Considering these are spiral wound tubes with a very thin wall I was surprised how much thrust they gave without exploding, the thin wall restricts maximum performance I can get from them without blowing them up. I really need better tubes.

With just a 250mg salute header I've gotten a couple of these rockets to about 350 feet! I have a video of the static scale test for the 36.7g rocket if you want me to post it.

I'd like to know the weight of the rockets you guys are making as well, I try for the best thrust to weight as possible.

Oh and one more thing, if you need somewhere to host it I can do that for you, just send it to me and I'll get it up on my Google page, otherwise just host it through Google Video or something. Just try and get us one!

Dude, we all really wanna see a video of that machine in action. I'm trying to build one myself and am kinda going by TD's design, at least in the vertical sense. I really would like to see it in motion though, especially one that makes perfect fuse like that!