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Home > Jean-Baptiste Dumas


 

Jean Baptiste André Dumas ( July 14, 1800 - April 10, 1884), French chemist, best known for his works on organic analysis and synthesis, as well as the determination of atomic weights (relative atomic masses) by measuring vapor densities.

Dumas studies in Geneva, Switzerland. In 1822 he moved to Paris, where he became professor of chemistry, initially at the Lyceum, later (1835) at the Ecole Polytechnique. After 1848, he exchanged much of his scientific work for ministerial posts under Napoleon III.

Dumas showed that kidneys remove urea from the bloodBlood is a circulating tissue composed of fluid plasma and cells ( red blood cells, white blood cells, platelets). Medical terms related to blood often begin in hemo or hemato ( BE: haemo and haemato from the Greek word for "blood". Blood of different spe.

In 1826, Dumas showed that in all elastic fluids observed under the same conditions, the molecules are placed at equal distances.

He improved on the works of Jöns Berzelius in organic chemistryOrganic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds. Organic nomenclature Organic nomenclature is the system established for naming and grouping organic compounds. Aliphatic co.

In 1833, Dumas developed a method for estimating the amount of nitrogenNitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7. A common normally colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 percent of Earth's atmosphere and is a cons in an organic compoundAn organic compound is any of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates and carbon oxides. Organic compounds are studied in organic chemistry; many of them, such as proteins, fats, and carbo, founding modern analysis methods.

Dumas established new values for the atomic mass of 30 elements, setting the value for hydrogenhydrogen helium H Li Full table General Name, Symbol, NumberHydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1 (IA), 1 , s Density, Hardness 0. 0899 kg/m3, NA Appearance colorless Atomic properties Atomic weight 1. 00794 amu Atomic radius (ca to 1.

Dumas, Jean-Baptiste Dumas, Jean-Baptiste Dumas, Jean-Baptiste

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