朱令中毒的终极黑手被挖出来了# WaterWorld - 未名水世界
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William Crookes (1832-1919)
Claude-Auguste Lamy (1820-1878)
Thallium is a chemical element with symbol Tl and atomic number 81. This
soft gray post-transition metal is not found free in nature. When isolated,
it resembles tin, but discolors when exposed to air. Chemists William
Crookes and Claude-Auguste Lamy discovered thallium independently in 1861,
in residues of sulfuric acid production. Both used the newly developed
method of flame spectroscopy, in which thallium produces a notable green
spectral line.
Claude-Auguste Lamy (1820-1878)
Thallium is a chemical element with symbol Tl and atomic number 81. This
soft gray post-transition metal is not found free in nature. When isolated,
it resembles tin, but discolors when exposed to air. Chemists William
Crookes and Claude-Auguste Lamy discovered thallium independently in 1861,
in residues of sulfuric acid production. Both used the newly developed
method of flame spectroscopy, in which thallium produces a notable green
spectral line.