Video

I think there would still be much orange due to the oil covering the Sr.

You get the same result when using green colored MoO3. I don't know why. If you expose MoO3 to a flame it turns black.

Thank you. Since Ca is very reactive I thought I would mix it with a bunch of things. I tried with B4C as well but the reaction was too weak.

It will result in explosion. My location is not suitable for that.

@@JoakimfromAnka Please try with a small amount, about the size of a pea, because I don't have CuO yet and I want to see how it will react

​@@JoakimfromAnka If possible, please show me. Thank you

@@PYRO_MYN I tried with 50% Fe2O3 and 50% CuO. MgAl grain size 100-200µm. czcams.com/video/sZP-7ApC2_o/video.html

@@JoakimfromAnka thank so much

That's above my knowledge. I just put a sparkler in it and it burned.

@@JoakimfromAnka Seems like and ideal delay composition (gasless), that's why it's interesting.

@@papanyanz Al/Ti+C makes little gas as well. And more heat.

Thanks

If you wonder if they make an intermetallic reaction then yes. According to this document: www.researchgate.net/publication/236556739_Theoretical_Energy_Release_of_Thermites_Intermetallics_and_Combustible_Metals/link/5660a15008aebae678aa294a/download

I don't know. It surprised me too.

​I think u didnt Mixed It well enough and It wasnt fine enough ​@@JoakimfromAnka

Obviously

Yes I could try it some time in the future. I have no copper acetate atm. Hopefull it makes blue flame.

@@JoakimfromAnka I tried to do it recently, it burned down almost instantly and the flame is not really visible. You can add PVC, it will burn just a little longer, and the color will be saturated due to chlorine :)

Links are in the description.

You got to write in english, I'm no russian.

@@JoakimfromAnka В is very expensive material.

@@user-wm3kp2vh8u Yes and it's even more expensive in the crystalline form.

English please.

@@JoakimfromAnka Si is metallic or amorphous?

@@user-wm3kp2vh8u Si is a metalloid. It reacts with bases.

@@JoakimfromAnka Metallic silicon is worse than amorphous silicon. You need more oxidizing agent and a higher temperature to ignite it. If the composition is pressed into a tube, then it is much more difficult to ignite it than bulk composition.

@@user-wm3kp2vh8u I misundetstood your question. I have never heard of metallic (crystalline?) or amorphous silicon so I can't tell what form I have.

I have not tested. I think I tried with sawdust and got no ignition.

@@JoakimfromAnka Understood. Cellulose is something between sugar and something else. As I remember, there was a reaction with potassium nitrate. But if copper nitrate does not react with sawdust, then it is unlikely that it will react with sugar or coal

@@xxchaosmasterrxx4486 I managed to get a weak reaction with red gum. The flames were a mixture of green and orange. Very boring reaction.

Some fuels make colors, others don't. I don't know why. Sugar gives red. Sawdust gives red-orange. Dextrin gives orange. Al and Mg gives a little bit of pale red, while Ti and Si gives white.

Not available in my country.

Yes. Ti makes both oxide and nitride when burning in air. I think the K2O produced also serves as an oxidizer.

It is surprising indeed. The ease of getting the reaction depends a lot on the type of carbon and grain size of Al. 45µm works well with with lampblack and with some effort activated carbon. It's very difficult to get it to react with graphite and I could not get it to react with charcoal. Pyro dark is 6-7µm and works well with all types of carbon.

I know it's weird. Graphite is usually the least reactive form of carbon. Lampblack gives the best reaction with metals.

Already done a video with Ti+CuO.

@@JoakimfromAnka sorry, probably I'v missed that .

I have no knowledge of rocket fuels.

I can not measure but according to the book _Thermitic Thermodynamics_ , Zn+Fe2O3 has a peak temperature of 1293°c.

Maybe the mixtures you hear about use fine powder. This one is using flakes from drilling.

No I have not tried.

I don't know! I find it strange too.

@@JoakimfromAnka Are you interested in running some of these reactions under inert gas? Could be as simple, maybe, as putting a glass bowl/jar/cup over the top and flushing with argon. Also, do you know of Fischer and Grublelich's thermite tables? There are some really interesting-looking reactions in there, like Li + Fe2O3, which has zero gas production but both products end up as liquids under adiabatic complete stoichiometric reaction.

@@sealpiercing8476 I have no argon gas. Too advanced for me. Yes I have seen the tables. Some of the numbers there seems way off. Like the temp and heat from Mg+B2O3, Ti+C, Hf+C, Hf+MoO3, Ta+I2O5.

I did. The reaction was very weak.

1.25mm steel

Powder or flakes.