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Molecular formula : MW : CAS :
nature : Periodic System III main ethnic group (group B) elements. Atomic number 81. Stable isotopes : 203,250. Amu 204.3833. With the blue and white metal. Heavy and soft texture. Density 11.85. 303.5 ° C melting point. Boiling Point 1460 ° C Valence and +3 +1. The air of gloom and easily changed. Soluble nitrate and sulfate. Insoluble base. For electronic devices, low-temperature electronic switch (thallium amalgam), the semiconductor research and optical glass material. Toxic thallium salt! For medicine. Also used to kill rodents (mice), but have now been banned. Thallium is a scattered elements, often from copper, lead, iron, zinc and other metal sulfide ore extraction.
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