Lick my Cadmium

Discussion in 'Chemistry' started by Syzygys, Jan 12, 2010.

  1. Trippy ALEA IACTA EST Staff Member

    Messages:
    10,890
    Correct.
    It's a transition metal, all transition metals are good at making brightly coloured salts, but some are better than others (consider Manganese, for example), The colour, and the intensity of the colour depend on a wide range of factors, including counter ions, and the nature of any complexes.

    (for example, hi-spin versus lo-spin configurations).
     
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  3. Captain Kremmen All aboard, me Hearties! Valued Senior Member

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    Highly toxic pigments (avoid at all costs)

    Lead Red (Red 105) Contains lead
    Molybdate Orange (Red 104) Contains lead and chromates
    Chrome Orange (Orange 21) Contains lead and chromates
    Mercadmium Orange (Orange 23) Contains cadmium, mercury and sulfides
    Barium Yellow (Lemon Yellow, Barium Chromate, Yellow 31) Contains barium and chromates
    Chrome Yellow (Chrome Lemon, Primrose Yellow, Lead Chromate, Yellow 34) Contains lead and chromates
    Zinc Yellow (Zinc Chromate, Yellow 36) Contains chromates
    Naples Yellow (Lead Antimonite, Antimony Yellow, Yellow 41) Contains lead and antimony
    King's Yellow (Yellow 39) Contains arsenic
    Strontium Yellow (Yellow 32) Contains strontium and chromates
    Zinc Yellow (Yellow 36) Contains chromate
    Chrome Green (Milori Green, Prussian Green, Green 15) Contains chromates
    Emerald Green (Paris Green, Vienna Green, Green 21) Contains arsenite
    Scheele's Green (Schloss Green, Green 22) Contains arsenite
    Cobalt Violet (Violet 14) Contains cobalt and arsenite
    Flake White (Cremnitz White, Lead White, White 1) Contains lead
    Lithopone (White 5) Contains zinc sulfide
    Zinc Sulfide White (White 7) Contains zinc sulfide
    Witherite (White 10) Contains barium
    Antimony White (White 11) Contains antimony
    Antimony Black Contains antimony sulfide


    from http://captainpackrat.com/furry/toxicity.htm

    Paris Green caused illness and death in many artists.
    Nice molecule though:

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    Last edited: Jan 15, 2010
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  5. MacGyver1968 Fixin' Shit that Ain't Broke Valued Senior Member

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    Would that be due to licking the brush to straighten the bristles? I heard a story many years ago about some factory workers who's job it was to paint the glow-in-dark highlights on watch faces. They were getting cancer because they would use their mouths to straighten the fine brush bristles to a sharp point.
     
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  7. Nasor Valued Senior Member

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    I don't know about the others on your list, but chrome green is not the same thing as Prussian green.
     
  8. Read-Only Valued Senior Member

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    Exactly right, Mac. They were painting with a radium salt.
     
  9. Captain Kremmen All aboard, me Hearties! Valued Senior Member

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    That would have been Radium, I think.
    A schoolpal of mine brought in an old family watch, and it sent the geiger counter crazy.
     
  10. Read-Only Valued Senior Member

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    Heh-heh! Why did you feel the need to repeat what I said?

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    The bit about the watch was nice - but it's not radium - it was a radium salt as I already explained.
     
  11. Captain Kremmen All aboard, me Hearties! Valued Senior Member

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    Sorry. Didn't notice your other reply.

    Regarding watch.
    We also had stuff under lock and key in a room with radioactive warning signs on it.
    About 1/1000th the radioactivity of the watch.

    Wasn't there a schoolboy arrested in the US once, for trying to make an atom bomb in his garden shed, with radium scraped from old watches and clocks.

    In pre terrorist days, he probably didn't get into too much trouble
    But he definitely would have got a severe ticking off.
     
    Last edited: Jan 17, 2010
  12. Read-Only Valued Senior Member

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    Close - actually it was the radioactive source in ionizing smoke detectors that he was collecting. I really doubt that there are a large number those watch faces still in circulation today.
     
  13. Walter L. Wagner Cosmic Truth Seeker Valued Senior Member

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    2,518
    No, it was both. See:

    http://www.dangerouslaboratories.org/radscout.html

    You can also go to Wikipedia and read about 'neutron howitzers' which he was trying to make.

    DON'T DO THIS AT HOME. It actually works, and can be quite dangerous.

    Neutron howitzers were the neutron source of choice before we discovered fission and reactors, producing far greater abundance of neutrons, which we daily exploit to make our Moly cows (except when our medical isotope-production reactors are down, such as now).
     
  14. Spud Emperor solanaceous common tater Registered Senior Member

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    Ahh. The infamous time bomb.
     
  15. Read-Only Valued Senior Member

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