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element or compound in tree bark that it burns with too much ash
[Archmed] aka "a_plutonium" wrote
in message ... [Archmed] I did not see mercury on that list and since coal power stations are notorious for emitting mercury into the air, I wonder how much mercury is in bark of trees. [hanson] Not too many plants do store Hg till they wilt. HgMe2 is volatile. The main acquisition of Hg into coal comes during the wet bog phase via sequestering/chelating of Hg by humic acids from mineral leeching over LONG periods of time. These organic Hg compounds then become/evolve into molecules of increasingly more hydrophobic nature as the coalfaction process continues... Hence they/Hg ends up highly enriched in anthracite. [Archmed] But I know some tree species evolved into a fire resistant bark in order to live in fire prone regions, so I wonder what chemical it is that gives them the best fire resistance. Is it potassium and salts? Archimedes Plutonium [hanson] It's not so much the chemicals as it's the structure of the bark that gives the fire resistance. .. And as far as the chemicals, apparently everybody except you knows that, it is these Group V elememts here that do the main assistance in breaking ignition sequence chain events on the molecular level.... Farooq W P2O5 12.87 As2O5 1.9 |
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