| Agent Name |
Thulium |
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| CAS Number |
7440-30-4 |
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| Formula |
Tm |
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| Major Category |
Metals |
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| Category |
Rare Earth Metals |
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| Description |
Malleable, silver-white metal; [Merck Index] |
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| Sources/Uses |
Least abundant of the rare earth metals; Obtained from the mineral monazite, which contains about 0.07% thulium; It may have uses as an energy source, in ferrites (ceramic magnetic materials) in microwave equipment, and to dope fiber lasers; 100% of natural thulium is the Tm-169 isotope, which is stable; [Reference#1] |
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| Comments |
Acute toxicity: low to moderate; [Reference#1] See "RARE EARTH METALS." |
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| Reference Link |
http://periodic.lanl.gov/elements/69.html |
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| Exposure Assessment |
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| Explanatory Notes |
mp = 1545 deg C; [Merck Index] |
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| Links to Other NLM Databases |
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