Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Pyrotechnic Stoichiometry Calculator
I am a fish
undersea enforcer
****




Posts: 600
Registered: 16-1-2003
Location: Bath, United Kingdom
Member Is Offline

Mood: Ichthyoidal

[*] posted on 27-1-2006 at 12:50
Pyrotechnic Stoichiometry Calculator


I've written a website that calculates the stoichiometric ratio for a selected combination of fuel and oxidiser:

http://www.hyperdeath.co.uk/pyrocalc/

Please inform me of any bugs or major ommisions.




1f `/0u (4|\\| |234d 7|-|15, `/0u |234||`/ |\\|33d 70 937 0u7 /\\/\\0|23.
View user's profile Visit user's homepage View All Posts By User
DeAdFX
Hazard to Others
***




Posts: 339
Registered: 1-7-2005
Location: Brothel
Member Is Offline

Mood: @%&$ing hardcore baby

[*] posted on 27-1-2006 at 13:20


I believe you will need xKMnO4 --> xK2O + xMn + xO
For metals like aluminum/magnesium?
View user's profile View All Posts By User
simply RED
Hazard to Others
***




Posts: 209
Registered: 18-8-2005
Location: noitacoL
Member Is Offline

Mood: booM

[*] posted on 29-1-2006 at 07:34


The reaction equation is almost unpredictable when oxidizers like KMnO4 ot NH4ClO4 are presented, along with reductors like sulphur, selenium, Ti... even Al powder.

For example:
KMnO4 + S = SO2 + MnxOy + K2SO4 +.......

NH4ClO4 + Al = Al2O3 + HCl + AlCl3 + H_AlCl4 + H2O +.....

even

KClO4 + Mg = KCl + MgCl2 + K2O + MgO ........




When logic and proportion have fallen sloppy dead...
View user's profile Visit user's homepage View All Posts By User
chemoleo
Biochemicus Energeticus
*****




Posts: 3005
Registered: 23-7-2003
Location: England Germany
Member Is Offline

Mood: crystalline

[*] posted on 13-2-2006 at 18:17


Very nice, I am a fish.

I tested it, no bugs found this far.

As someone interested in the art of thermites, I suppose it wouldnt be too much an effort to add a variety of other metal oxides? Or even chlorides, and sulphates?

I.e. SiO2, Cr2O3, CrO3, V2O5, PbO, PbSO4, BaSO4, MgSO4 etc etc.

A fair bit of additional work but it gives some nice ideas if all those are present. Plus it saves me calculation time next time I attempt one...

Also, it might be interesting to add options such as <+ 20% sulphur, or + 20% glucose, or + 20 % C (where the percentage is adjustable)> - which is i.e. needed to generate the heat necessary for a Si thermite. Plus, it'd be interesting to see how perfectly balanced oxidiser-fuel systems work for black powder, for example. More work though, I suppose.

What do you think?




Never Stop to Begin, and Never Begin to Stop...
Tolerance is good. But not with the intolerant! (Wilhelm Busch)
View user's profile View All Posts By User

  Go To Top