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Re: activated carbon

George writes:

> Not all AC is made from the same starting materials. The most common
>  materials used to make granulated AC are probably wood, bone, coal,
>  petroleum tar. Actually, any carbon-containing material can be converted
>  to AC.
>  Obviously, AC made from animal bones will contain a lot of phosphorus,
>  that from wood will have substantially less and AC made from
>  once-distilled petroleum tar -- only traces of phosphorus, if that.

What if we put some sugar in a jar, poured the appropriate acid over it, and 
harvested the carbon (I saw this done in 7th grade science- it was 
impressive, but I can't remember which acid it was).  There would be no 
phosphorus at all.  what do you do to make it "activated"?

Bob Dixon