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Hexamine - hygroscopic or not?


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Posted

Update: I still have a hard time to decide whether or not I shall make AP blues. I'm trying this composition, that hst45 used in a 3":

 

Ammonium perchlorate 68

Copper(II)oxide 17

Hexamine 15

 

He made cut stars, using shellac solution as a binder. I don't have a frame for cutting, and I prefer my stars rolled or pumped. I first tried pumped stars with +5% NC-lacquer with 20% NC by weight.They wouldn't consolidate. Then I tried +7% pulverized shellac, isopropanol as solvent. They were hard to consolidate, though, and they are too brittle. I can crush them with my fingers. Too bad, because the colour is wonderful, like Forget-me-not. :unsure:

 

Could the hexamine be the component to blame here? I usually have no problems with these methods.

 

 

  • 3 weeks later...
Posted
Update again: my hexamine burns very good with ammonium perchlorate, hygroscopic or not. It does not burn good with barium chlorate and not even with potassium perchlorate with +5% potassium dichromate. It seems like it has deteriorated just in a few months. :mellow:
Posted
Be careful with hexamine and chlorates ;)
Posted
I know, it was just a test. ;)
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