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p-Menthane is a hydrocarbon with the formula (CH 3) 2 CHC 6 H 10 CH 3. It is the product of the hydrogenation or hydrogenolysis of various terpenoids, including p-cymene, terpinolenes, phellandrene, and limonene. It is a colorless liquid with a fragrant fennel-like odor. It occurs naturally, especially in exudates of Eucalyptus fruits.
A Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins).Two broad classes of Ziegler–Natta catalysts are employed, distinguished by their solubility:
CH 3 SH + CH 3 ONa → CH 3 SNa + CH 3 OH. The resulting thiolate anion is a strong nucleophile. It can be oxidized to dimethyl disulfide: 2CH 3 SH + [O] → CH 3 SSCH 3 + H 2 O. Further oxidation takes the disulfide to two molecules of methanesulfonic acid, which is odorless. Bleach deodorizes methanethiol in this way.
The symphony is scored for full orchestra with 3 flutes (the 3rd doubling piccolo), 3 oboes (the 3rd doubling cor anglais), 2 clarinets in A and B ♭, bass clarinet in A and B ♭, 2 bassoons, contrabassoon, 4 horns, 2 trumpets in A and B ♭, 1 contralto trumpet in F, 3 trombones, tuba, timpani, cymbals, bass drum, snare drum, triangle ...