Louis Jacques Thénard.

Louis Jacques Thénard ( May 4 is the 124th day of the year in the Gregorian calendar (125th in leap years). There are 241 days remaining. Events 1400-1899 1471 - Wars of the Roses: The Battle of Tewkesbury - Edward IV defeats a Lancastrian Army and kills Edward, Prince of Wales. 1493 - Pope Alexander VI... May 4, Events The Cornish language died out 2nd edition of in Spanish Alta California. December 24 - Kiritimati discovered by James Cook The code duello is adopted at the Clonmell Summer Assizes as the form for pistol duels in Ireland. It is quickly denounced but nevertheless widely adopted throughout the English-speaking... 1777 in the village of Louptire, Aube is a département in the northeastern part of France named after the Aube River. History Aube was one of the original 83 departments created during the French Revolution on March 4, 1790. It was created from part of the former province of Champagne. Geography The department is... Aube - June 21 is the 172nd day of the year (173rd in leap years) in the Gregorian Calendar, with 193 days remaining. June 21 is the summer solstice in the northern hemisphere, so is the day of the year with the longest hours of daylight in the northern hemisphere, and the... June 21, 1857 was a common year starting on Thursday (see link for calendar). Events January 9 - Earthquake at Fort Tejon, California with an estimated magnitude of 7.9 February 16 - The National Deaf Mute College (later renamed Gallaudet University) is established in Washington, DC becoming the first school for the advanced... 1857 in The Eiffel Tower has become the symbol of Paris throughout the world. Paris is the capital city of France, as well as the capital of the Île-de-France , called Paris ), Paris has been a major tourist destination for centuries. The city is renowned for the beauty of its... Paris), was a The French Republic or France ( French: Official language French1 Capital Paris Largest City Paris President: Jacques Chirac Prime Minister: Jean-Pierre Raffarin Area  - Total2  - Metropolitan France3  - % water Ranked 42nd 674,843 km² (260,558 sq. mi.) Ranked 47th 551,695 km²4 (213,011 sq... French A chemist is a scientist who specializes in chemistry. The word derives from the older term alchemist. Chemist is a relatively wide term in the Scientific world, as Chemists may specialise in different sub-fields of Chemistry, thus being re-named accordingly; for example, Organic Chemist, Inorganic Chemist, Analytical Chemist... chemist.

His father, a poor peasant, managed to have him educated at the academy of Sens is a town of Burgundy, France. It is a commune of the Yonne département, of which it is a Sous-préfecture. Administration Sens is the chief-town of the Arrondissement of Sens. SENS is the Strategies for Engineered Negligible Senescence project at Cambridge University. Categories: France geography... Sens, and sent him at the age of sixteen to study Pharmacy (from the Greek . Some of these new roles are now mandated by law in various legislatures. Pharmacists, therefore, are the primary health professionals who optimise medication management to produce positive health-outcomes. The symbols most commonly associated with pharmacy are the mortar and pestle and the ℞ ( Pharmacist Pharmacists... pharmacy in The Eiffel Tower has become the symbol of Paris throughout the world. Paris is the capital city of France, as well as the capital of the Île-de-France , called Paris ), Paris has been a major tourist destination for centuries. The city is renowned for the beauty of its... Paris. There he attended the lectures of Antoine François Fourcroy and Louis Nicolas Vauquelin. Louis Nicolas Vauquelin (May 16, 1763 - November 14, 1829), was a French pharmacist and chemist. He was born at Saint-André-dHébertot in Normandy, France. His first acquaintance with chemistry was gained as laboratory assistant to an apothecary in Rouen (1777-1779), and after various... Louis Nicolas Vauquelin, and succeeded in gaining admission, in a humble capacity, to the latter's laboratory. But his progress was so rapid that in two or three years he was able to take his master's place at the lecture-table, and Fourcroy and Vauquelin were so satisfied with his performance that they procured for him a school appointment in 1797 as teacher of chemistry, and in 1798 one as repetiteur at the École Polytechnique.

In 1804 is a leap year starting on Sunday. Events January January 1 - End of French rule in Haiti February February 14 - First Serbian Uprising began. February 15 - New Jersey becomes the last northern state to abolish slavery February 16 - First Barbary War: Stephen Decatur leads a raid to burn the... 1804 Vauquelin resigned his professorship at the Collège de France and successfully used his influence to obtain the appointment for Thénard, who six years later, after Fourcroy's death, was further elected to the chairs of chemistry at the Ecole Polytechnique and the Faculté des Sciences. He also succeeded Fourcroy as member of the Academy. In 1825 he received the title of baron from Charles X, King of France and of Navarre (October 9, 1757 - November 6, 1836) was born at the Palace of Versailles. He was the grandson of Louis XV and his Polish queen, Marie Leszczynska, and son of Louis, dauphin de France, who never reigned, and his German wife Marie-Jos... Charles X, and in 1832 Louis-Philippe of France (October 6, 1773–August 26, 1850), served as the Orleanist king of the French from 1830 to 1848. Born in Paris, Louis-Philippe, as the son of Louis Philippe Joseph, duc dOrl ans (known as Philippe galit ), descended directly from King Louis XIII. During... Louis Philippe made him a peer of France. From 1827 to 1830 he represented the départment of Yonne in the chamber of deputies, and as vice-president of the conseil superieur de l'instruction publique, he exercised a great influence on scientific education in France. He died in Paris on the 21st of June 1857. A statue was erected to his memory at Sens in 1861, and in 1865 the name of his native village was changed to Louptire-Thénard.

Above all things Thénard was a teacher; as he himself said, the professor, the assistants, the laboratory — everything must be sacrificed to the students. Like most great teachers he published a textbook, and his Traité de chimie élémentaire, théorique et pratique (4 vols., Paris, 181316), which served as a standard for a quarter of a century, perhaps did even more for the advance of chemistry than his numerous original discoveries.

Soon after his appointment as repetiteur at the École Polytechnique he began a lifelong friendship with Joseph-Louis Gay-Lussac (December 6, 1778–May 10, 1850) was a French chemist and physicist. He is known mostly for two laws related to gases. Gay-Lussac was born at St Leonard, in the department of Limoges. He received his early education at home and in 1794 was... Joseph Louis Gay-Lussac, and the two carried out many researches together. Careful analysis led him to dispute some of Claude Louis Berthollet Claude Louis Berthollet (December 9, 1748 – November 6, 1822) was a French chemist. Claude Louis Berthollet was born in Talloires, near Annecy, France. Berthollet, along with Antoine Lavoisier and others, devised a chemical nomenclature, or a system of names, which serves as the basis of the... Claude Louis Berthollet's theoretical views regarding the composition of the metallic An oxide is a chemical compound of oxygen with other chemical elements, after the calcination process used to produce oxides. Categories: Chemistry stubs | Oxides ... oxides, and he also showed Berthollet's "zoonic acid" to be impure The chemical compound acetic acid (from the Latin word genus of bacteria is named for its tendency to produce acetic acid, and these bacteria are found universally in foodstuffs, water, and soil. As such, acetic acid is produced naturally as fruits and some other foods spoil, and it is one... acetic acid (1802). In response, Berthollet invited him to become a member of the Société d'Arcueil.

His first original paper (1799) was on the compounds of General Name, Symbol, Number arsenic, As, 33 Series metalloids Group, Period, Block 15 (VA), 4, p Density, Hardness 5727 kg/m3, 3.5 Appearance metallic grey Atomic properties Atomic weight 74.92160 amu Atomic radius (calc.) 115 (114) pm Covalent radius 119 pm van der Waals radius 185 pm Electron... arsenic and General Name, Symbol, Number antimony, Sb, 51 Series metalloids Group, Period, Block 15 (VA), 5, p Density, Hardness 6697 kg/m3, 3 Appearance silvery lustrous grey Atomic properties Atomic weight 121.760 amu Atomic radius (calc.) 145 (133) pm Covalent radius 138 pm van der Waals radius no data Electron... antimony with General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1.429 kg/m3, NA Appearance colorless Atomic properties Atomic weight 15.9994 g/mol Atomic radius (calc.) 60 (48) pm Covalent radius 73 pm van der Waals radius 152 pm... oxygen and General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16 (VIA), 3 , p Density, Hardness 1960 kg/m3, 2 Appearance Lemon yellow at STP Atomic properties Atomic weight 32.065 amu Atomic radius (calc.) 100 pm (88 pm) Covalent radius 102 pm van der Waals radius... sulphur. In 1807, he began important research into Ether is the trivial name for the compound diethyl ether, CH3CH2OCH2CH3; the systematic (IUPAC) name of the compound is ethoxyethane. Alchemist Raymundus Lullus is credited with discovering the compound in 1275, although there is no contemporary evidence of this. It was first synthesized in 1540 by Valerius Cordus, who called... ethers. His researches on Sebacic Acid is 1,10-Decanedioic Acid and is naturally occurring. In its pure state it is a white flake or powdered crystal. Sebaceus is Latin for tallow candle, sebum (tallow) is Latin for tallow, and refers to its use in the manufacture of candles. In the industrial setting... sebacic acid (1802) and on Bile (or where it aids the process of digestion. Bile salts act to some extent as a detergent, helping to emulsify fats, and thus aid in their absorption. Besides its digestive function, bile serves as the route of excretion for hemoglobin breakdown products (bilirubin) which give bile its colour. Bile... bile (1807) deserve mention as well, as does his discovery of The chemical compound hydrogen peroxide (H2O2) is a viscous liquid that has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant and (in high concentrations) as an oxidizer or monopropellant in rockets. Hydrogen peroxide is manufactured commercially by several processes. Inorganic processes... hydrogen peroxide (1818). In 1799 he developed the pigment known as Thénard's blue in response to a request by Jean-Antoine Claude, comte Chaptal de Chanteloup (June 4, 1756 - July 30, 1832), French chemist and statesman, was born at Nogaret, Lozhre. The son of an apothecary, he studied chemistry at Montpellier, obtaining his doctors diploma in 1777, when he repaired to Paris. In 1781 the States of Languedoc... Jean-Antoine-Claude Chaptal for a cheap colouring matter.

Reference

• This entry incorporates public domain text originally from the (Redirected from 1911 Encyclopaedia Britannica) The Eleventh Edition of the , with many articles being up to 10 times the length of those in other encyclopædias. Some articles were written by the best-known scholars of the age, such as Edmund Gosse, J. B. Bury, Algernon Charles Swinburne, John Muir... 1911 Encyclopaedia Britannica.