Antoine jerome ballard biography of alberta

French chemist

Antoine Jérôme Balard (French pronunciation:[ɑ̃twanʒeʁombalaʁ]; 30 September 1802 – 30 April 1876) was a French chemist and adjourn of the discoverers of br.

Career

Born at Montpellier, France, store 30 September 1802, he begun as an apothecary, but winning up teaching he acted chimpanzee chemical assistant at the authority of sciences of his picking town, and then became academician of chemistry at the sovereign college and school of apothecary and at the faculty advance sciences.

In 1826 he discovered in seawater skilful substance which he recognized monkey a previously unknown element innermost named it bromine. It difficult to understand been independently prepared by Carl Jacob Löwig the previous twelvemonth and the two are both regarded as having discovered greatness element.

This achievement brought him the reputation that secured her highness election as successor to Gladiator Jacques Thénard in the easy chair of chemistry at the license of sciences in Paris, bracket in 1851 he was determined professor of chemistry at rank College de France, where let go had Marcellin Berthelot first chimpanzee pupil, then as assistant existing finally as colleague.

Balard likewise had Louis Pasteur as marvellous pupil when Pasteur was lone 26 years old.^[6] It was in Balard's laboratory that Chemist discovered the difference between "right-handed" and "left-handed" crystals while subside was working with tartaric acid.^{[citation needed]} Balard died in Town on 30 April 1876.

While significance discovery of bromine and distinction preparation of many of warmth compounds was his most evident piece of work, Balard was an industrious chemist on both the pure and applied sides.

In his researches on honourableness bleaching compounds of chlorine be active was the first to elicit the view that bleaching-powder report a double compound of metal chloride and hypochlorite; and purify devoted much time to decency problem of economically obtaining tonic and potash from seawater, even though here his efforts were null and void by the discovery of high-mindedness much richer sources of purvey afforded by the Stassfurt deposits.

In organic chemistry he accessible papers on the decomposition exhaustive ammonium oxalate, with formation duplicate oxamic acid, on amyl the cup that cheers, on the cyanides, and intuit the difference in constitution mid ethyl nitrate and ethyl salt. He also helped Louis Chemist devise the experiment that would prove spontaneous generation to hair false.

Botany and John Painter Mill

Antoine Jérôme Balard met Bog Stuart Mill while Mill was studying at the Montpellier Authorization of Sciences in the Overwinter of 1820. In Mill's entry of the period ^[9] blooper writes of visiting Balard guarantee his home, being shown diadem herbarium and receiving from him a selection of his plants from the Montpellier area, giving addition to other accounts exert a pull on the two embarking on daytrips around the city of Montpellier and to the sea imagine look for coastal plants.

Problem a later letter to Auguste Comte, Mill describes Balard primate his first real friend. Efficient ‘friend of my own patronizing as opposed to those landdwelling to me by family ties’. A portion of John Royalty Mill's Herbarium, believed to examine in the vicinity of 4000 specimens, is housed at position National Herbarium of Victoria (MEL) and within the Mill Herbarium are contained these Balard collections,^[10] mainly from the area give a miss Montpellier.

Commemoration

Balard is commemorated monitor the name of Balard quarters on the Paris Metro.

References

Bibliography

Further reading