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RE: smelly bubbles from substrate


>From: Ross Drewe <r.drewe at melbpc_org.au>
>To: "'Aquatic-Plants at actwin_com'" <Aquatic-Plants at actwin_com>
>Subject: RE: smelly bubbles from substrate
>Date: Thu, 11 Sep 1997 21:14:36 +1000
>Larry Frank wrote
>> .........When I
>> disturbed the substrate more bubbles escaped; the odor smelled a
>> little sulfurish. ... I am producing H2s?
>Steve in Vancouver said (in Aquatic Plants Digest #946):
>> These bubbles are primarily methane, CH4. The smell is primarily 
>> methyl-mercator, HS-CH3 which you can smell at extremely low 
>> concentrations.
>Is it as clear cut as that? (just wondering...).   Decomposition can
>produce a lot of different mercaptans, and other smelly compounds.
>I don't see how we'd know what's coming out of that tank, short of
>actually running an analysis on it. Do you have any further info?
>Ross Drewe
>rdrewe at melbpc_org.au
>PS: Is methyl-mercator what's released by a dead Flemish cartographer?