Small scale preparation of Perchloric acid. we also test its oxidizer properties with some fuels.
Firstly we take Ammonium Perchlorate and convert it into Sodium Perchlorate, we did this by adding sodium hydroxide and heating to drive off a bunch of ammonia.
Next we took the now basic solution and added some Hydrochloric acid in excess.
the sodium chloride precipitates immediately and we filter it off.
And So begins the fun part......
Boiling off the excess Hydrochloric Acid.
A major portion of the solution boils off at around 112-115c.
once we got it to 150+ we can be assured that the HCl has been boiled off fully.
some precipitate also appeared, likely sodium chloride or sodium Perchlorate. unfortunately i discarded it.....
after leaving the bottle open overnight the yellow colour disappeared leaving a nearly clear acid.
The results came to 20mls of acid with a concentration of around 60% HClO4.
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