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This week in the history of chemistry...June 25 seems to have been a big day.
June 21, 1808
Joseph Louis Gay-Lussac and Louis Thenard announced the isolation of boron (B, element 5)
June 22, 1799
The first standards for the meter and kilogram (the first standards in the international system (SI) of units) were deposited in the National Archives of France, 1799.
June 23, 1775
Etienne-Louis Malus was born. He discovered double refraction (birefringence).
June 24, 1771
Eleuthère du Pont was born. He manufactured gunpowder and founded DuPont
June 24, 1839
First exhibition of photography (works of Hippolyte Bayard)
June 25, 1903
Marie Curie (née Manya Sklodowska) presented her doctoral thesis to Paris faculty of science. The thesis summarized the work for which she woud share the Nobel prize that same year.
June 25, 1864
Walther Hermann Nernst was born. He developed the third law of thermodynamics; electrochemistry (Nernst equation); Nobel Prize, 1920.
June 25, 1886.
Henri Moissan electrolyzed a solution of KHF2 in anhydrous HF to isolate fluorine (F, element 9).
June 25, 1907.
Friedrich Wilhelm Ostwald converted ammonia to nitric acid with a platinum catalyst.
June 25, 1910
Roy Plunkett born 1910: invention and characterization of Teflon® (US patent 2,230,654)
June 25, 1829
James Smithson died 1829 (birth date unknown c.1765): analysis of zinc ores; his bequest started the Smithsonian Institution.
June 25, 1824.
William Thomson (Baron Kelvin of Largs) was born 1824. He developed the theory and practice of thermodynamics, including a formulation of the second law and the absolute temperature (Kelvin) scale (named after him)
June 27, 1854
Abraham Gesner obtained US patents 11,203, 11,204, and 11,205 on a process for obtaining kerosene by distillation.
June 21, 1808
Joseph Louis Gay-Lussac and Louis Thenard announced the isolation of boron (B, element 5)
June 22, 1799
The first standards for the meter and kilogram (the first standards in the international system (SI) of units) were deposited in the National Archives of France, 1799.
June 23, 1775
Etienne-Louis Malus was born. He discovered double refraction (birefringence).
June 24, 1771
Eleuthère du Pont was born. He manufactured gunpowder and founded DuPont
June 24, 1839
First exhibition of photography (works of Hippolyte Bayard)
June 25, 1903
Marie Curie (née Manya Sklodowska) presented her doctoral thesis to Paris faculty of science. The thesis summarized the work for which she woud share the Nobel prize that same year.
June 25, 1864
Walther Hermann Nernst was born. He developed the third law of thermodynamics; electrochemistry (Nernst equation); Nobel Prize, 1920.
June 25, 1886.
Henri Moissan electrolyzed a solution of KHF2 in anhydrous HF to isolate fluorine (F, element 9).
June 25, 1907.
Friedrich Wilhelm Ostwald converted ammonia to nitric acid with a platinum catalyst.
June 25, 1910
Roy Plunkett born 1910: invention and characterization of Teflon® (US patent 2,230,654)
June 25, 1829
James Smithson died 1829 (birth date unknown c.1765): analysis of zinc ores; his bequest started the Smithsonian Institution.
June 25, 1824.
William Thomson (Baron Kelvin of Largs) was born 1824. He developed the theory and practice of thermodynamics, including a formulation of the second law and the absolute temperature (Kelvin) scale (named after him)
June 27, 1854
Abraham Gesner obtained US patents 11,203, 11,204, and 11,205 on a process for obtaining kerosene by distillation.
