Jöns Jacob Berzelius

About this figure

Jons Jacob Berzelius (1779-1848) was a Swedish chemist whose systematic work on atomic weights and chemical notation shaped the practice of chemistry throughout the nineteenth century. Trained as a physician, Berzelius turned increasingly to chemical research and spent his career in Stockholm, where he taught and directed an influential laboratory. He is credited with introducing the modern system of chemical symbols, using one or two letters derived from an element's Latin name, which replaced the more cumbersome pictorial notations used by earlier chemists and remains the basis of chemical notation today.

Berzelius carried out an extensive and painstaking program of measuring atomic weights, publishing tables that were, for their time, remarkably accurate for many elements, and he discovered or was the first to isolate several elements, including cerium, selenium, and silicon. He wrote widely used textbooks and treatises, among them a study of the chemistry of animal substances, published in translation as A View of the Progress and Present State of Animal Chemistry, and a manual on chemical analysis, translated as The Use of the Blowpipe in Chemistry and Mineralogy, describing a technique he helped establish as a standard tool for identifying minerals in the field.

Berzelius is often credited with coining or popularizing several chemical terms still in use, including catalysis and isomerism. The precise origin of the term protein, sometimes associated with his name, is disputed among historians of science; most accounts credit the Dutch chemist Gerardus Mulder with coining the word, with Berzelius suggesting or endorsing it in correspondence rather than introducing it himself. Berzelius was made a baron by the Swedish crown and died near Stockholm in 1848.

Written by Epoch Voices. Not the figure’s own words.