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Calcium bromide is the name for compounds with the chemical formula Ca Br 2 (H 2 O) x. Individual compounds include the anhydrous material (x = 0), the hexahydrate (x = 6), and the rare dihydrate (x = 2). All are white powders that dissolve in water, and from these solutions crystallizes the hexahydrate.
LaC 2 reacts with water to form acetylene, C 2 H 2 and a mixture of complex hydrocarbons. [3] LaC 2 is a metallic conductor, in contrast to CaC 2 which is an insulator. [3] The crystal structure of LaC 2 shows that it contains C 2 units with a C-C bond length of 130.3 pm, which is longer than the C-C bond length in calcium carbide, 119.2 pm, which is close to that of ethyne. [3]
HCO 2 H → H 2 O + CO. Treatment of formic acid with sulfuric acid is a convenient laboratory source of CO. [15] [16] In the presence of platinum, it decomposes with a release of hydrogen and carbon dioxide. HCO 2 H → H 2 + CO 2. Soluble ruthenium catalysts are also effective for producing carbon monoxide-free hydrogen. [17]
The LA-2A had evolved from Lawrence's first leveling amplifier, the LA-1, which was favored by Gene Autry, and its successor, the LA-2, which had been adopted by CBS and RCA. In 1965, Lawrence sold Teletronix to Babcock Electronics of Costa Mesa, California, and in 1967 Bill Putnam 's company Studio Electronics (eventually renamed UREI ...
Because it is commonly recrystallized from chloroform, the complex is often supplied as the adduct [Pd 2 (dba) 3 ·CHCl 3]. [1] The purity of samples can be variable. [3] In [Pd 2 (dba) 3], the pair of Pd atoms are separated by 320 pm but are tied together by dba units. [4] The Pd(0) centres are bound to the alkene parts of the dba ligands.
Bond energies to bromine tend to be lower than those to chlorine but higher than those to iodine, and bromine is a weaker oxidising agent than chlorine but a stronger one than iodine. This can be seen from the standard electrode potentials of the X 2 /X − couples (F, +2.866 V; Cl, +1.395 V; Br, +1.087 V; I, +0.615 V; At, approximately +0.3 V ...
The number of coordination bonds (coordination number) can vary from two in K[Ag(CN) 2] as high as 20 in Th(η 5-C 5 H 5) 4. [ 2 ] One of the most common coordination geometries is octahedral , where six ligands are coordinated to the metal in a symmetrical distribution, leading to the formation of an octahedron if lines were drawn between the ...
Aminolevulinic acid synthase (ALA synthase, ALAS, or delta-aminolevulinic acid synthase) is an enzyme (EC 2.3.1.37) that catalyzes the synthesis of δ-aminolevulinic acid (ALA) the first common precursor in the biosynthesis of all tetrapyrroles such as hemes, cobalamins and chlorophylls. [1] The reaction is as follows: