chemistry

Sebastian Tanatar

Sebastian Tanatar is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sebastian Tanatar rather than just read about it. In short: Sevast'ian (or Sebastian) Moiseevich Tanatar (Ukrainian: Севастян Мойсейович Танатар; 7 (19) October 1849, Odesa – 30 November (19 December) 1917, Odesa) was a Russian chemist. He was born into a family of Karaite merchants in Odesa.

Key takeaways

Sebastian Tanatar belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Sebastian Tanatar to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sebastian Tanatar from memory before moving on to harder problems.

Reference excerpt

Sevast'ian (or Sebastian) Moiseevich Tanatar (Ukrainian: Севастян Мойсейович Танатар; 7 (19) October 1849, Odesa – 30 November (19 December) 1917, Odesa) was a Russian chemist. He was born into a family of Karaite merchants in Odesa. When he was 14, his family moved to Simferopol, Crimea, where he graduated from the Simferopol gymnasium three years later. In 1867, he returned to Odesa to attend Novorossiyskiy University (now Odesa University), from where he graduated in 1872. In 1873–1874 he studied abroad. He later returned to Odesa University, where he achieved the rank of a Full Professor in 1896. Tanatar made several pioneering contributions to chemistry. In 1880, he showed that fumaric and maleic acid, upon oxidation, yield two isomeric hydroxycarboxylic acids, later shown to be racemic and mesotartaric acids. In 1895, he accomplished the transformation of cyclopropene into propylene at high temperature. In 1898–99 he produced perborates and percarbonates by electrolysis. Tanatar also discovered compounds of hydrogen peroxide with Na2CO (1899), Na2SO4 (1901), and other salts and with urea (1908). He also made significant contributions to nitrogen chemistry, such as industrial manufacturing of ammonia, nitrous acid and nitric acid, determination of the heat capacity and the atomic mass of beryllium, and the invention of gas mask.

Bibliography On the structure of fumaric and maleic acid (Master's thesis; Odesa 1880) On the question and reasons of isomerism of fumaric and maleic acids (PhD dissertation; Odesa 1891) Some thermochemical data for succinic and isosuccinic acids (Journal of the Russian Physico-Chemical Society, 1889, v. 21) Some thermochemical data for organic acids (ib ., 1891, vol. 23) A note on Osipov's article on the probable heat of hydration of maleic anhydride (ib., 1891, vol. 23) The effect of water on bromosuccinic acid and its potassium salt (ib., 1891, 23) Heat of dissolution and neutralization of alpha-dibromyropionic acid (ib., 1892, vol. 24) Thermochemical data for beta-dibromyropionic acid (ib., 1892, vol. 24) Two modifications of benzophenone ( ib., 1892, vol. 24) Two modifications of chloroacetic acid (ib., 1892, vol. 24) On two modifications of iodine chloride (ib., 1893, vol. 25) Reaction of the formation of nitrous acid (ib., 1893, vol. 25) On the Arrhenius theory (ib., 1894, vol. 26) The transformation of trimethylene into propylene (ib., 1895, vol. 27) On free nitrous acid (ib., 1896, vol. 28) On the process of soda formation in nature (ib., 1896, vol. 28) Decomposition products of fumaric hydroxylamine (ib., 1896, vol. 28) Amber hydroxylamine and products of its decomposition (ib., 1897, v. 29) To the theory of A.A. Yakovkin (ib., 1897, vol. 29) A note on metaphosphoric acids (ib., 1898, vol. 30) Thermochemical studies in alcoholic solutions (ib., 1897, vol. 29) Depression some electrolytes and non-electrolytes in mixed solvents (ib., 1895, vol. 27) Specific gravity of isomeric acids (ib., 1890, vol. 22) Ueber Superoxide (Berichte d. deutsch. Chem. Gesellschaft, 1900) Zur Frage betreffs der Umwandung des Trimethylens in Propylen (ib., 1899) Percarbonate (ib., 1899) Eine neue Bildungsweise der Stickstoffwasserstoffsaure (ib., 1899) Zur Kenntniss des Hydroxylamins (ib., 1899) Das Verhalten der Halogensauerstoffsauren dem Wasserstoffhyperoxyd gegenuber (ib., 1899) Ueber das Verhalten der Maleinsaure beim Erhitzen (ib., 1894) Zur theorie derischen elektration (Zeitschrift für Physikalische Chemie, 1894) Die Losungs- und Neutralisationswarme des Nitroharnstoffes und seines Kaliumsalzes (ib., 1896) Salzbildung in alkoholischer Losung (ib., 18 98) Perborate und ihre Konstitution (ib., 1898) Notiz uber Perborate (ib., 1898) Ueber die Verbrennung de Gase (ib., 1900) Ueber Perborate (Zeitschrift fur anorgan. Chemie, 1901) Bleisuboxyd (ib., 1901) Cadmiumsuboxyd (ib., 1901) Wismuthsuboxyd (ib., 1901) Cement of the water supply system of ancient Chersonesos (Notes of the Novorossiysk Society, 1893) Limestone from the vicinity of Bakhchisarai, suitable for the preparation of hydraulic cement (ib., 1893) Theory of solutions (Odesa, 1895), A practical guide to thermochemistry (translation of the work of Berthelot, Odesa, 1894)

References Chugaev, L. A. "Pamiati S. M. Tanatara." In his book Izbr. trudy, vol. 3. Moscow, 1962. Pages 428–29. The Great Soviet Encyclopedia, 3rd Edition (1970-1979) [1] accessed 2021-07-10. Значение ТАНАТАР СЕВАСТЬЯН МОИСЕЕВИЧ в Краткой биографической энциклопедии at slovar.cc, accessed 2021-07-10

Worked examples

Example 1 — a first encounter with Sebastian Tanatar

Start with the simplest possible case. Write down what Sebastian Tanatar claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sebastian Tanatar before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sebastian Tanatar ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sebastian Tanatar

In research: Sebastian Tanatar appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Sebastian Tanatar in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Sebastian Tanatar is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1849 births, 1917 deaths, Chemists from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life: Look for Sebastian Tanatar outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Sebastian Tanatar in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sebastian Tanatar means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Sebastian Tanatar out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sebastian Tanatar in simple terms?

Why does Sebastian Tanatar matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sebastian Tanatar?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sebastian Tanatar.