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2 H 3 O 2 Na and cobalt tartrate C 4 H 4 O 6 Co in ethanol with a gelling agent, drying and calcinating the resulting gel, and annealing it at 650 °C. [5] The compound Na 0.5 CoO 2 (or NaCo 2 O 4) can be obtained in the form of platelets up to 6 mm wide from metallic cobalt powder, by treatment with molten sodium chloride and sodium hydroxide ...
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Cobalt(II) oxide is an inorganic compound that has been described as an olive-green [3] or gray [4] solid.It is used extensively in the ceramics industry as an additive to create blue-colored glazes and enamels, as well as in the chemical industry for producing cobalt(II) salts.
For example, [Ti(H 2 O) 6] 4+ is unknown: the hydrolyzed species [Ti(OH) 2 (H 2 O) n] 2+ is the principal species in dilute solutions. [11] With the higher oxidation states the effective electrical charge on the cation is further reduced by the formation of oxo-complexes.
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Nickel trifluoroacetate tetrahydrate exists, as well as two emerald green acid trifluoroacetates, a bridged trinuclear form [Ni 3 (CF 3 COO) 6 (CF 3 COOH) 6](CF 3 COOH) and a hydrated acid form [Ni 3 (CF 3 COO) 6 (CF 3 COOH) 2 (H 2 O) 4](CF 3 COOH) 2 both with triclinic crystal form. The first has density 2.205 and the second 2.124.
CoO + 2 CH 3 CO 2 H + 3 H 2 O → Co(CH 3 CO 2) 2 ·4 H 2 O. The tetrahydrate has been shown by X-ray crystallography to adopt an octahedral structure, the central cobalt centre being coordinated by four water molecules and two acetate ligands. [1] The analogous nickel acetate is isostructural. [2]
Cyclopentadienylcobalt dicarbonyl is an organocobalt compound with formula (C 5 H 5)Co(CO) 2, abbreviated CpCo(CO) 2. It is an example of a half- sandwich complex . It is a dark red air sensitive liquid.