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When both hydrogens of acetylene are replaced by metals, the compound can also be called carbide, e.g. calcium carbide Ca 2+ [− C≡C −], which is calcium acetylide. When only one hydrogen atom is replaced, the anion may be called hydrogen acetylide or the prefix mono - may be attached to the metal, as in monosodium acetylide or sodium ...
Barium carbide can be synthesized as an impure compound by reducing barium carbonate powder with metallic magnesium in the presence of carbon. [3] Barium carbide can also be made by reducing carbon dioxide with hot barium metal at 600°C. [4] These methods are used because of their high yield, and because the carbide is used to make acetylene.
The carbide product produced generally contains around 80% calcium carbide by weight. The carbide is crushed to produce small lumps that can range from a few mm up to 50 mm. The impurities are concentrated in the finer fractions. The CaC 2 content of the product is assayed by measuring the amount of acetylene produced on hydrolysis. As an ...
Copper(I) acetylide is the substrate of Glaser coupling for the formation of polyynes. In a typical reaction, a suspension of Cu 2 C 2 ·H 2 O in an amoniacal solution is treated with air. The copper is oxidized to Cu 2+ and forms a blue soluble complex with the ammonia, leaving behind a black solid residue.
Li 2 C 2 can also be prepared by reacting CO 2 with molten lithium. [citation needed] 10 Li + 2 CO 2 → Li 2 C 2 + 4 Li 2 O. Other method for production of Li 2 C 2 is heating of metallic lithium in atmosphere of ethylene. Lithium hydride is a coproduction: 6 Li + C 2 H 4 → Li 2 C 2 + 4 LiH. Lithium carbide hydrolyzes readily to form ...
Strontium carbide (also more precisely known as strontium acetylide or strontium dicarbide) is a salt with chemical formula SrC 2. It was first synthesized by Moissan in 1894. [1] Strontium carbide can be formed in an electric arc furnace from strontium carbonate and a reductant, such as a reducing sugar [1] [2] or magnesium metal. [3]
Silver acetylide is an inorganic chemical compound with the formula Ag 2 C 2, a metal acetylide. The compound can be regarded as a silver salt of the weak acid , acetylene . The salt's anion consists of two carbon atoms linked by a triple bond , thus, its structure is [Ag + ] 2 [ − C≡C − ] .
Monosodium acetylide, also known as sodium hydrogen acetylide, is an organosodium compound with the formula NaC≡CH. It is a sodium salt of acetylene, consisting of sodium cations Na + and hydrogen acetylide anions − C≡CH. It is a derived from acetylene by deprotonation using a sodium base, typically sodium amide. [2] HC≡CH + NaNH 2 → ...
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