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Nikolai Kurnakov
Nikolai Semyonovich Kurnakov (; 6 December Old_Style_and_New_Style_dates.html" ;"title="nowiki/>Old Style and New Style dates">O.S. 24 November1860 – 19 March 1941) was a Russian chemist, who is internationally recognized as the originator of physical chemistry">physicochemical analysis. He also was one of the principal founders of the platinum industry in the Soviet Union. A chemical reaction that he pioneered, known as the Kurnakov test, is still used to differentiate Cis–trans isomerism, cis from Cis–trans isomerism, trans isomers of divalent platinum and is his best-known contribution to coordination chemistry. Early life and career Kurnakov was born in Nolinsk, Vyatka Governorate. He attended a high school at Nizhny Novgorod and later studied at the Mining Institute in St. Petersburg. Distantly related to organic chemist Vladimir Markovnikov, he made an early choice of a chemistry career, setting up a home laboratory at 14. He published his first article on alum crys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nolinsk
Nolinsk () is a types of inhabited localities in Russia, town and the administrative center of Nolinsky District in Kirov Oblast, Russia, located on the right bank of the Voya River (Vyatka River, Vyatka's tributary), south of Kirov, Kirov Oblast, Kirov, the administrative center of the oblast. Population: History It was founded in 1668 as Nikolsky pogost (), which was later also called the village of Noli (). It was granted town status in 1780. In 1940–1957, it was called Molotovsk () after Soviet politician and diplomat Vyacheslav Molotov, who was born in the nearby town of Sovetsk, Kirov Oblast, Sovetsk. Administrative and municipal status Within the subdivisions of Russia#Administrative divisions, framework of administrative divisions, Nolinsk serves as the administrative center of Nolinsky District.Law #203-ZO As an administrative division, it is incorporated within Nolinsky District as the Town of district significance, Town of Nolinsk. As a subdivisions of Russia#Munici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alum
An alum () is a type of chemical compound, usually a hydrated double salt, double sulfate salt (chemistry), salt of aluminium with the general chemical formula, formula , such that is a valence (chemistry), monovalent cation such as potassium or ammonium. By itself, "alum" often refers to potassium alum, with the formula . Other alums are named after the monovalent ion, such as sodium alum and ammonium alum. The name "alum" is also used, more generally, for salts with the same formula and structure, except that aluminium is replaced by another Valence (chemistry), trivalent metal ion like chromium#Chromium(III), chromium, or sulfur is replaced by another chalcogen like selenium. The most common of these analogs is chrome alum . In most industries, the name "alum" (or "papermaker's alum") is used to refer to aluminium sulfate, , which is used for most industrial flocculation (the variable is an integer whose size depends on the amount of water absorbed into the alum). For medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USSR State Prize
The USSR State Prize () was one of the Soviet Union’s highest civilian honours, awarded from its establishment in September 1966 until the dissolution of the USSR in 1991. It recognised outstanding contributions in the fields of science, mathematics, literature, the arts, and architecture. History State Stalin Prize (1941–1956) The award traces its origins to the State Stalin Prize (), commonly known as the Stalin Prize, which was established in 1941. It honoured achievements in science, technology, literature, and the arts deemed vital to the Soviet war effort and postwar reconstruction.Volkov, Solomon; Bouis, Antonina W., trans. 2004. ''Shostakovich and Stalin: The Extraordinary Relationship Between the Great Composer and the Brutal Dictator''. New York: Alfred A. Knopf. ISBN 0-375-41082-1. Ceremonies were suspended during 1944–45 and then held twice in 1946 (January for works from 1943–44; June for 1945 works). USSR State Prize (1966–1991) By 1966, the Stalin Prize h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Red Banner Of Labour
The Order of the Red Banner of Labour () was an order of the Soviet Union established to honour great deeds and services to the Soviet state and society in the fields of production, science, culture, literature, the arts, education, sports, health, social and other spheres of labour activities. It is the labour counterpart of the military Order of the Red Banner. A few institutions and factories, being the pride of Soviet Union, also received the order. The Order of the Red Banner of Labour was the third-highest civil award in the Soviet Union, after the Order of Lenin and the Order of the October Revolution. The Order of the Red Banner of Labour began solely as an award of the Russian SFSR on December 28, 1920. The all-Union equivalent was established by Decree of the Presidium of the Supreme Soviet on September 7, 1928, and approved by another decree on September 15, 1928. The Order's statute and regulations were modified by multiple successive decrees of the Presidium of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mendeleev Prize
Dmitri Ivanovich Mendeleev ( ; ) was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements. He used the periodic law not only to correct the then-accepted properties of some known elements, such as the valence and atomic weight of uranium, but also to predict the properties of three elements that were yet to be discovered (germanium, gallium and scandium). Early life Mendeleev was born in the village of Verkhnie Aremzyani, near Tobolsk in Siberia, to Ivan Pavlovich Mendeleev (1783–1847) and Maria Dmitrievna Mendeleeva (née Kornilieva) (1793–1850).''Maria Mendeleeva (1951)''. D. I. Mendeleev's Archive: Autobiographical Writings. Collection of Documents. Volume 1 /Biographical notes about D. I. Mendeleev (written by me – D. Mendeleev), p. 13 – Leningrad: D. I. Mendeleev's Museum-Archive, 207 pages (in Russian) Ivan worked as a school principal and a teacher of fine arts, politics and philosophy at the Tambov an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolai Menshutkin
Nikolai Aleksandrovich Menshutkin (; – ) was a Russian chemist who discovered the process of converting a tertiary amine to a quaternary ammonium salt via the reaction with an alkyl halide, now known as the Menshutkin reaction. Biography Menshutkin was born in a merchant family as the sixth son of Alexander Nikolaevitch Menshutkin. He graduated with honors from gymnasium in December 1857, but only by autumn 1858 managed to enroll to the Saint Petersburg State University, as he was still under the prescribed age of 16. He studied at the faculty of physics and mathematics and was nearly expelled in the autumn of 1861 due to some political disturbances. Nevertheless, by the spring of 1862 he attained the master's degree. During the last years he became interested in chemistry, which he studied under Dmitri Mendeleev. While he acquired a sufficient knowledge of theory he was lacking practice, as at that time the entire laboratory of the university consisted of only two small rooms. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dmitri Mendeleev
Dmitri Ivanovich Mendeleev ( ; ) was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements. He used the periodic law not only to correct the then-accepted properties of some known elements, such as the valence and atomic weight of uranium, but also to predict the properties of three elements that were yet to be discovered (germanium, gallium and scandium). Early life Mendeleev was born in the village of Verkhnie Aremzyani, near Tobolsk in Siberia, to Ivan Pavlovich Mendeleev (1783–1847) and Maria Dmitrievna Mendeleeva (née Kornilieva) (1793–1850).''Maria Mendeleeva (1951)''. D. I. Mendeleev's Archive: Autobiographical Writings. Collection of Documents. Volume 1 /Biographical notes about D. I. Mendeleev (written by me – D. Mendeleev), p. 13 – Leningrad: D. I. Mendeleev's Museum-Archive, 207 pages (in Russian) Ivan worked as a school principal and a teacher of fine arts, politics and philosophy at the Tambov an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter The Great St
Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a surname (including a list of people with the name) Culture * Peter (actor) (born 1952), stage name Shinnosuke Ikehata, a Japanese dancer and actor * ''Peter'' (1934 film), a film directed by Henry Koster * ''Peter'' (2021 film), a Marathi language film * "Peter" (''Fringe'' episode), an episode of the television series ''Fringe'' * ''Peter'' (novel), a 1908 book by Francis Hopkinson Smith * "Peter" (short story), an 1892 short story by Willa Cather * ''Peter'' (album), a 1972 album by Peter Yarrow * ''Peter'', a 1993 EP by Canadian band Eric's Trip * "Peter", 2024 song by Taylor Swift from '' The Tortured Poets Department: The Anthology'' Animals * Peter (Lord's cat), cat at Lord's Cricket Ground in London * Peter (chief mouser), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thiourea
Thiourea () is an organosulfur compound with the formula and the structure . It is structurally similar to urea (), with the oxygen atom replaced by sulfur atom (as implied by the '' thio-'' prefix). The properties of urea and thiourea differ significantly. Thiourea is a reagent in organic synthesis. Thioureas are a broad class of compounds with the formula Structure and bonding Thiourea is a planar molecule. The C=S bond distance is 1.71 Å. The C-N distances average 1.33 Å. The weakening of the C-S bond by C-N pi-bonding is indicated by the short C=S bond in thiobenzophenone, which is 1.63 Å. Thiourea occurs in two tautomeric forms, of which the thione form predominates in aqueous solutions. The equilibrium constant has been calculated as ''K''eq is . The thiol form, which is also known as an isothiourea, can be encountered in substituted compounds such as isothiouronium salts. : Production The global annual production of thiourea is around 8,000 tonnes, mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inorganic Chemistry
Inorganic chemistry deals with chemical synthesis, synthesis and behavior of inorganic compound, inorganic and organometallic chemistry, organometallic compounds. This field covers chemical compounds that are not carbon-based, which are the subjects of organic chemistry. The distinction between the two disciplines is far from absolute, as there is much overlap in the subdiscipline of organometallic chemistry. It has applications in every aspect of the chemical industry, including catalysis, materials science, pigments, surfactants, coatings, pharmaceutical drug, medications, fuels, and agriculture. Occurrence Many inorganic compounds are found in nature as minerals. Soil may contain iron sulfide as pyrite or calcium sulfate as gypsum. Inorganic compounds are also found multitasking as biomolecules: as electrolytes (sodium chloride), in energy storage (Adenosine triphosphate, ATP) or in construction (the polyphosphate backbone in DNA). Bonding Inorganic compounds exhibit a range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamp Of USSR 1641g
Stamp or Stamps or Stamping may refer to: Official documents and related impressions * Postage stamp, used to indicate prepayment of fees for public mail * Ration stamp, indicating the right to rationed goods * Revenue stamp, used on documents to indicate payment of tax * Rubber stamp, device used to apply inked markings to objects ** Passport stamp, a rubber stamp inked impression received in one's passport upon entering or exiting a country ** National Park Passport Stamps * Food stamps, tickets used in the United States that indicate the right to benefits in the Supplemental Nutrition Assistance Program Collectibles * Trading stamp, a small paper stamp given to customers by merchants in loyalty programs that predate the modern loyalty card * Eki stamp, a free collectible rubber ink stamp found at many train stations in Japan Places * Stamp Creek, a stream in Georgia * Stamps, Arkansas People * Stamp Brooksbank, English MP * Stamp Fairtex, mixed martial artist * Stamp or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austria
Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Austria, most populous city and state. Austria is bordered by Germany to the northwest, the Czech Republic to the north, Slovakia to the northeast, Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west. The country occupies an area of and has Austrians, a population of around 9 million. The area of today's Austria has been inhabited since at least the Paleolithic, Paleolithic period. Around 400 BC, it was inhabited by the Celts and then annexed by the Roman Empire, Romans in the late 1st century BC. Christianization in the region began in the 4th and 5th centuries, during the late Western Roman Empire, Roman period, followed by the arrival of numerous Germanic tribes during the Migration Period. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
