Tips on making Bordeaux Mixture (and the chemistry behind it)
I know this might be general knowledge somewhere, but...
We would like tips on making Bordeaux Mixture. We found some tips on ratios thusly: * General: CuSO4 100g / Ca(OH)2 100-200g / H2O 10l * Allergic to Copper: CuSO4 40g / Ca(OH)2 120g / H2O 4l * Young: CuSO4 10g / Ca(OH)2 30g / H2O 4l Are these ratios sound or not? Also, we would like to know the whole chemistry behind Bordeaux Mixture, because from what we know: * Ca(OH)2 dissolves at only 0.18g/100mL of water. * The CuSO4 and Ca(OH)2 react to create Cu(OH)2 and CaSO4, which are both insoluble (while leaving a excess of Ca(OH)2 as well). |
Tips on making Bordeaux Mixture (and the chemistry behind it)
ungvichian wrote:
I know this might be general knowledge somewhere, but... We would like tips on making Bordeaux Mixture. We found some tips on ratios thusly: * General: CuSO4 100g / Ca(OH)2 100-200g / H2O 10l * Allergic to Copper: CuSO4 40g / Ca(OH)2 120g / H2O 4l * Young: CuSO4 10g / Ca(OH)2 30g / H2O 4l Are these ratios sound or not? Also, we would like to know the whole chemistry behind Bordeaux Mixture, because from what we know: * Ca(OH)2 dissolves at only 0.18g/100mL of water. * The CuSO4 and Ca(OH)2 react to create Cu(OH)2 and CaSO4, which are both insoluble (while leaving a excess of Ca(OH)2 as well). Google is your friend http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7481.html -- Ron Jones Process Safety & Development Specialist Don't repeat history, unreported chemical lab/plant near misses at http://www.crhf.org.uk Only two things are certain: The universe and human stupidity; and I'm not certain about the universe. ~ Albert Einstein |
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