10 replies to this topic

[NUKE]

I have heard that if you mix Zinc/Sulfur 67.1%/32.9% the result will be a rocket propellant(that isnt good) or at least will make smoke.I Have tried to mix them but i cant light it up.Why?Will I have to make a different proccess?Please tell me what to do.

[Yugen-biki]

If the particle size is small enough you can light it with a lighter. If the Zn is to coarse the sulphur will ignite with the oxygen in the air and not react with the Zn.

[BigG]

Zinc/Sulfur propellant requires both ingredients for be very fine and mix very well. Try six times through a 24-mesh sieve.

The propellant is not a bad propellant – and both the USA military and NASA have researched it widely. Some excellent articles are available on the subject – and some very strong rockets were built using it.

As far as I can recall, the main problem is that Zinc/Sulphur burn is almost impossible to control, therefore accurate calculation that are required for purposeful targeting are virtually impossible and it was abounded.

[NUKE]

First of all thank you for your replys.

I tried once more to make that composition but nothing happened again.I had about 95grams of this composition(it wasn't mixed well) and i added some 5 teaspoons of Potassium Nitrate.It burnt slowly but with a quite good colour.I would like you to inform me if these composition is dangerous.It is just KNO3-Zn-S.Thank you

[neo]

I think you will be alright with that mix. KNO3 and Zn shouldn?t be any problem to mix. And KNO3 an S is in many mixes a BP so that is totally OK.

[NUKE]

Ok.I also believe that.It is a great effect especially for flares.

[neo]

can you post som pics?

[NUKE]

I will send a video which isn't good because it is from a nokia mobile and then i will send some good photos.I am new at pyro so it may not be a good efect.Give me your email.

[neo]

I have send you an pm...

[NUKE]

Does anybody knows if this composition or its smoke is poisonus?

[Stuart]

http://ptcl.chem.ox....ur_dioxide.html

http://ptcl.chem.ox....zinc_oxide.html

http://physchem.ox.a...nc_sulfide.html

MSDS's for the most likely products

Edited by Stuart, 15 September 2004 - 04:29 PM.