Heinrich Rose
Heinrich Rose ( born August 6 1795 in Berlin, † January 27, 1864 in Berlin) was a German mineralogist and analytical chemist and ( re-) discoverer of the chemical element niobium. He was the son of Valentin Rose the Younger brother of Gustav Rose.
Life
Heinrich Rose came from a Brandenburg merchant and academic family. After training as a pharmacist Rose was trained from 1819 to 1821 at the chemist Jöns Jakob Berzelius. Shortly thereafter, he became in 1822 professor of chemistry at the University of Berlin. In 1832 he was a member of the Prussian Academy of Sciences. From 1835, he was Professor of Chemistry in Berlin. In the same year he was appointed foreign member of the Bavarian Academy of Sciences. In addition, he was taken on May 31, 1861 in the Prussian Order Pour le Mérite for Sciences and Arts. His grave was located on the St. Mary's and St. Nicholas Cemetery I in the Berlin district of Prenzlauer Berg.
Work
In 1844, he was able to demonstrate that niobium and tantalum acid are different substances. Tantalum was already known, the new similar element he named niobium, after Niobe, daughter of Tantalus.
Rose had it not aware of the work of Charles Hatchett in 1801: he had assumed that columbite ore consists of a single unknown element to which he gave the name columbium. In fact columbite contains, among other elements, the two metals, niobium and tantalum. Another unknown metal, which he believed to have found in a Bavarian tantalite, and which he called Pelopium, later turned out to turn out to be niobium. In addition, Rose was one of the leading analysts of the 19th century. His Handbook of Analytical Chemistry, which was published in 1829, underwent numerous editions. In addition to the discovery of the element niobium, he explored the chemistry of the element titanium.
Working
- Handbook of Analytical Chemistry
- Composition of the Columbits & Samarskits in Academic Quarterly, Berlin, 1862.