The Pike Posted October 22, 2018 Share Posted October 22, 2018 Made apple wine in a stainless tank with a copper pipe immersion chiller. After several days noticed black deposit on copper. What is this and is it safe to drink? The ph was about 3.00 and approx 12% abv. Link to comment Share on other sites More sharing options...
tinkerer Posted November 22, 2018 Share Posted November 22, 2018 On 10/22/2018 at 3:45 PM, The Pike said: Made apple wine in a stainless tank with a copper pipe immersion chiller. After several days noticed black deposit on copper. What is this and is it safe to drink? The ph was about 3.00 and approx 12% abv. Drink the liquid without disturbing the deposit......... Link to comment Share on other sites More sharing options...
OldChemE Posted November 22, 2018 Share Posted November 22, 2018 You have two different metals in an acid bath--look that up in a chemistry book Link to comment Share on other sites More sharing options...
The Pike Posted November 22, 2018 Author Share Posted November 22, 2018 If I wanted to spend time trawling through a chemistry book looking for an answer, I wouldn't have posted the qn here. Look 'smart-ass Knobhead' up in your chemistry book. -1 Link to comment Share on other sites More sharing options...
dimreepr Posted November 22, 2018 Share Posted November 22, 2018 5 hours ago, The Pike said: If I wanted to spend time trawling through a chemistry book looking for an answer, I wouldn't have posted the qn here. Look 'smart-ass Knobhead' up in your chemistry book. 1 "two different metals in an acid bath" lmgtfy https://en.wikipedia.org/wiki/Galvanic_corrosion Quote Galvanic corrosion (also called bimetallic corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. A similar galvanic reaction is exploited in primary cells to generate a useful electrical voltage to power portable devices. Link to comment Share on other sites More sharing options...
mistermack Posted November 22, 2018 Share Posted November 22, 2018 6 hours ago, The Pike said: If I wanted to spend time trawling through a chemistry book looking for an answer, I wouldn't have posted the qn here. Look 'smart-ass Knobhead' up in your chemistry book. Always wise to rely on forum posts when dealing with possible poisons. Only an idiot would look up things in text books. The surest method is to drink it all and observe and record the result. That's the scientific method. Link to comment Share on other sites More sharing options...
StringJunky Posted November 22, 2018 Share Posted November 22, 2018 (edited) 33 minutes ago, mistermack said: Always wise to rely on forum posts when dealing with possible poisons. Only an idiot would look up things in text books. The surest method is to drink it all and observe and record the result. That's the scientific method. It's the 'empirical method' which is part of the scientific method but not wholly. Scientific method assumes some forethought as well which should embody some sort of safety in technique.. Edited November 22, 2018 by StringJunky Link to comment Share on other sites More sharing options...
Phi for All Posted November 22, 2018 Share Posted November 22, 2018 7 hours ago, The Pike said: If I wanted to spend time trawling through a chemistry book looking for an answer, I wouldn't have posted the qn here. Look 'smart-ass Knobhead' up in your chemistry book. ! Moderator Note It's right after "Lazy Dead Pike". Thread closed. Link to comment Share on other sites More sharing options...
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