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Hi
I tried 5 times using exact measurements and steps but never got the whitish precipitation mentioned after adding h2o2. Seems 76ml hbr was not Enough. Would it be better to use 125 ml hbr47 instead of the 76ml mentioned? How long does the precipitaion take as per the above method? Any guesses or advise?
I tried 5 times using exact measurements and steps but never got the whitish precipitation mentioned after adding h2o2. Seems 76ml hbr was not Enough. Would it be better to use 125 ml hbr47 instead of the 76ml mentioned? How long does the precipitaion take as per the above method? Any guesses or advise?
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William D.
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- By William D.
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28 Jan
You can add an excess of acid now and stir it (so that the process goes faster), but do not add more peroxide.
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William D.
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- By William D.
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06 Feb
Washing with pure water, if you used an excess of acid. After washing with a saturated soda solution, this will help accelerate crystallization.