Jeremias Benjamin Richter
Jeremias Benjamin Richter was a German chemist. He was born at Hirschberg in Silesia, became a mining official at Breslau in 1794, and in 1800 was appointed assessor to the department of mines and chemist to the royal porcelain factory at Berlin, where he died. He is known for introducing the term stoichiometry.
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Source: Wikipedia