[Stoves] why does coffee husk biochar smell like urine?

[ajheggie at gmail.com]

On Saturday 15 October 2011 23:35:27 Frans Peeters wrote:
> Dear Paul ,
>
>
>
>    I did many times fusions with pure KOH .
>
> At 350° C it melts and is very aggesive to dissolve ceramics Al2O3 and
> SiC powders . (Diamond recup. )
>
> It is verry verry  hygroscopic and the hydroxyde airosols with water in
> the air gives your nose sense alcalic .
>
> Your brain makes the link to urine . but not the real potasium make it
> .
>
> It goes not into gas  but sputers airosols has a special creep effect
> out of a creuset .! Even after cooling .

Interesting post Frans, thanks.

It seems to make a good case for moderate temperature biochar, tho return 
potassium to the soil where it may be lost by high temperature combustion 
to ash and remove problems from ash fusion and clinker downstream of the 
offgas combustion.

AJH

AJH