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    What constitutes a 'dusty solid' and a 'dense solid'. Would a dense solid just be like crystalline substances while 'dusty' is just dry powders etc?
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    Dusty solids are ones that consist of fine particles which are easily moved around in air - sillica for example
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    (Original post by EierVonSatan)
    Dusty solids are ones that consist of fine particles which are easily moved around in air - sillica for example
    Ah ok, thanks , damn COSHH stuff >.<
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    How can you distinguish between toxic, highly toxic and poisonous as well? Surely anything is poisonous if you ingest enough of it...hazard table I have for my experiment says its toxic, but i'm not sure if I should classify it as toxic or the next criteria up which is highly toxic/poisonous.
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    (Original post by cptbigt)
    How can you distinguish between toxic, highly toxic and poisonous as well? Surely anything is poisonous if you ingest enough of it...hazard table I have for my experiment says its toxic, but i'm not sure if I should classify it as toxic or the next criteria up which is highly toxic/poisonous.
    you don't have to this has already been done for you - look up the MSDS sheets for compounds

    I hate COSHH forms :shifty:
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    (Original post by EierVonSatan)
    you don't have to this has already been done for you - look up the MSDS sheets for compounds

    I hate COSHH forms :shifty:
    Heh yeah....i'm starting to hate them.
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    Always go for the MSDS! You'll generally find all the information you need to complete a risk assessment there.
    If you're interested to know, the difference between toxic and highly toxic is generally based on their LD50 or LC50 combined with how easy it is to obtain lethal exposure.
 
 
 
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