Hexamine / Urotropine : Synthesis

This video shows the synthesis of urotropine from formaldehyde and ammonia

Hexamine or Urotropine is an organic compound used as a urinary antiseptic and more than that its widely used as a camping fuel as it burns pretty smoothly without producing smoke or leaving behind ash.It is also a precursor of RDX which i dont recommend through this prep matter

Materials required.
Overall the preparation is very easy.
We just need
1) Formaldehyde 37% -23.5g
2)Ammonia 25% -45g
Just the right stoichiometry can give you fairly good amount of result.

Just a small note. Chill both the reactants before the experiment and also if u can ( which i didnt) use an ice bath for this experiment.

Procedure
The method of synthesis is also extremely easy.
Just take a big beaker like a 400ml one and pour in the cold formaldehyde into it.
Then pour in cold ammonia solution slowly with strong stirring. The reaction is exothermic and it will heat up. Thats why I recommended to use an ice bath and chilled reagents, as you know heat can disperse out both the formaldehyde and ammonia gas from the reaction mixture which wont be very cool. Try doing it in a well ventillated area or in a fume hood.
After adding the ammonia,continue stirring for another 15-30minutes. Then allow the mixture to stay undisturbed for 24hours .Just close the lid of beaker with a watch glass or something and keep aside and it will be fine.
Whats happening is 4molecules of ammonia and 6 molecules of formaldehyde reacts to form hexamine.I will include the reaction diagram in the attachments.

After 24 hours just take a flat plane tray and pour the contents into that and keep it under sun or any other hot windy source to evaporate out all the water. You can see urotropine crystallising out. I have also included a picture of that in attachments.

You can definetly test the compound by taking a few amount and setting it on fire xD.

So yea thats the preparation as a whole. Hope everyone would like it.
Thank you

be safe in home during this pandemic season and try to watch all my videos.

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