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Jean Beguin
Iatrochemist noted for his 1610 Tyrocinium Chymicum (Beginner's Chemistry; Digital edition) · France · On the map · Scientists · Lived 1550 to 1620 · aged 70
Jean Beguin (1550-1620) was an iatrochemist noted for his 1610 Tyrocinium Chymicum (Begin Chemistry), which many consider to be one of the first chemistry textbooks.
Jean Beguin is read about 8 times a day, in 14 languages.
A typical day, 30 days to 12 July 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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In the 1615 edition of his textbook, Beguin made the first-ever chemical equation or rudimentary reaction diagrams, showing the results of reactions in which there are two or more reagents. Modern rendering of this famous diagram, detailing the reaction of corrosive sublimate (HgCl2) with sulfide of antimony (Sb2S3), is shown below:
