April 2020
Intermediate to advanced
296 pages
5h 20m
English

Those deadly salts of thallium, so green of line and flame,
No taste or smell, killed rats as well! The Pale Horse fueled their fame.
Take Prussian Blue when e’er in doubt,
GROUP 13 METAL
Thallium is renowned for the murderous toxicity of its salts. English scientist William Crookes (1832–1919) discovered the element in 1861, spotting its telltale green spectral line during his spectroscopic analysis of waste products deposited during ...