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bumping and anti-bumping granuals - chemistry help much needed :) watch

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    can anyone please tell me what chemical anti-bumping granuals are made of and also, what is 'bumping' - the chemical process

    I can't find the answer to any of these questions on google and i desperatly need them asap! Please help! thnx emz xx
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    Check it up on the net, on yahoo! Try typing in just the key words.
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    (Original post by emzie)
    can anyone please tell me what chemical anti-bumping granuals are made of and also, what is 'bumping' - the chemical process

    I can't find the answer to any of these questions on google and i desperatly need them asap! Please help! thnx emz xx
    uhm....the anti bumping granuals are made of aluminuim something.....
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    It's something to do with breaking down hydrocarbons in car engines i think...
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    ok thnx i'll try yahoo because google was useless! I'm using it in the fractional distillation sense, I know it's like when the substance is superheated, it boils before bubbles have a chance to form, therefore it kinda shoots out through the conderser all at once, but I wondered if anyone could elaborate on this a bit more in a more detailed chemical sense? Also how do anti-bumping granules stop this? I think it's something like giving the substance a surface on which to form bubbles or something??????
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    Antibumping granules are little bits of glass, about grain of sand size. They provide so called nucleation sites for bubbles to form (as they are porous), thus reducing the amount of large bubbles - I think this helps stop loss of solution, as less boils off.
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    (Original post by salmiak)
    Antibumping granules are little bits of glass, about grain of sand size. They provide sites for bubbles to form (as they are porous), thus reducing the amount of large bubbles - I think this helps stop loss of solution.
    Yep you are right - I think....
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    (Original post by NikNak)
    Yep you are right - I think....
    Wait til I've edited before you reply, dammit!
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    Thank You
 
 
 
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