Balard, Antoine Jerome

Antoine Jerome Balard (1802-1876) treated a caustic solution obtained from the ashes of seaweed with chlorine water. Besides iodine, bromine was formed. 

Bromine - the atomic number is 35 and the chemical symbol is Br. The name derives from the Greek bromos for stench or bad odor . It was first prepared by the German chemist Carl Ldwig in 1825 but it was first publically announced in 1826 by Balard and so the discovery is therefore credited to the French chemist and pharmacist Antoine-Jerome Balard. 

French chemist Antoine-Jerome Balard Along with mercury, one of two elements that at room temperature is found as a liquid some compounds are used as pesticides and to make photographic film. 

Antoine-Jerome Balard, 1802-1876. French chemist and pharmacist who discovered bromine. Professor of chemistry at the Sorbonne and at the College de France. He discovered hypochlorous acid, worked out the con-situation of Javelle water, and perfected industrial methods for extracting various salts from sea water. 

Antoine-Jerome Balard (14), was born at Montpellier on September 30, 1802. Since his parents were poor, he was adopted and educated by his godmother. He studied at tire College of Montpellier for a time, and at the age of seventeen years he became a preparateur at the Ecole de Pharmacie, where he graduated in 1826 (47, 66, 68). 

Bromine was discovered, at almost the same time in 1826, by two men, German chemist Carl Lowig (1803—1890) and French chemist Antoine-Jerome Balard (1802—1876). Although Balard announced his discovery first, Lowig had simply not completed his smdies of the element when Balard made his announcement. 

French chemist Antoine-Jerome Balard and German chemist Leopold Gmelin independently discover bromine. 

All these industrial innovations would have their own impact on other developments in industrial and then medicinal chemistry. At the beginning of the nineteenth century, as the result of a scientific approach, drugs were becoming an industrial item. Claude Louis Berthollet (1748-1822) begins the industrial exploitation of chlorine (circa 1785). Nicolas Leblanc (1742-1806) prepared sodium hydroxide (circa 1789) and then bleach (circa 1796). Davy performed electrolysis and distinguished between acids and anhydrides. Louis Jacques Thenard (1777-1857) prepared hydrogen peroxide and Antoine Jerome Balard (1802-1876) discovered bromide (1826). 

Let s go back for a moment to 1826. The place is Montpellier, France, home of pharmacy student Antoine-Jerome Balard. Professor Joseph Anglada asks him to look into the possibility of isolating useful substances from the residue that s left when seawater evaporates. Balard treats the residue with chlorine, and this yields a dark brown liquid with an intense smell. Its chemical properties are similar to those of chlorine and iodine, but Balard recognizes it as a new element. He calls it bromine, after the Greek word bromos, which means stink. ... 

The first to catch a glimmering of order was the German chemist Johann Wolfgang Dobereiner (1780-1849). In 1829, he noted that the element bromine, discovered three years earlier by the French chemist Antoine Jerome Balard (1802-76), seemed just halfway in its properties between chlorine and iodine. (Iodine had been discovered by... 

Bromine was discovered by a German student named Carl Lowig. Lowig produced a sample for his professor that he collected from a spring in his home town. A year later, Antoine-Jerome Balard isolated bromine from seawater and presented it to the French Academy in 1826. 

Antoine-]irdme Balard (1802-1876) grew up in Montpellier near the French Mediterranean coast. At the age of 17 he began to study at the ficole de Pharmacie and was examined in 1826. During his studies, he examined the flora in some salt marshes near Montpellier. Salt was won there from numerous lagoons on an annual cycle - dammed in the spring, allowed to evaporate in the summer and collected in the fall [50.2]. The young student observed that crystallized sodium sulfate was thrown away. Could it not be used in some way At least for Antoine-Jerome himself the substance became useful. In spite of his youth, he discovered a new elemenL which took him into the history of science. It occurred when he made different experiments with crystals and mother liquor. 

Antoine-Jerome Balard published information about his discovery and described the new element in 1826 in Annales de Chimie et de Physique. He was credited with the discovery, but it is fair to say that part of the priority ought to be given to Carl Lowig. 

Antoine Jerome Balard (Montpellier, 30 September 1802-Paris, 30 March 1876) studied pharmacy in the School of Pharmacy in Montpellier, becoming assistant to the professor, Joseph Anglada (Perpignan, 17 October 1775-Montpellier, 19 December 1833), and discovering bromine in 1826. He succeeded Anglada as professor, but then became demonstrator in the l ole Normale in Paris, succeeded Thenard as professor in the Faculty of Science and was titular professor in the Collie de France (I have found no dates for these appointments). Apart from long researches on the production of alkali salts from sea water, which came to nothing, he did little besides the discovery of bromine, chlorine monoxide, and hypochlorous acid, and it was said in Paris Balard was discovered by bromine. ... 

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