February 3, 1894 – Death of Edmond Frémy, known for the salt that bears his name, although he also made great discoveries, such as artificial ruby

Chemist whose research focused on studying chemical compounds; leaf and flower dyes; composition of bone, brain matter, and other animal substances; fermentation processes and contributions to industrial chemistry such as its contribution to the knowledge of the manufacture of iron and steel, sulfuric acid, glass and paper, and in particular the saponification of fats with sulfuric acid and in the use of palmitic acid to make candles.

In 1845, he discovered the salt that bears his name. It is a long-lived free radical that is used as a standard in electron paramagnetic resonance spectroscopy.

At the end of his life, he devoted himself to the problem of obtaining alumina in crystalline form and managed to make rubies identical to the natural gem, not only in chemical composition, but also in physical properties.

If you want to know more about this scientist, click on the following link: Edmond Frémy