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Cobalt(II) sulfate is used in storage batteries and electroplating baths, sympathetic inks, and as an additive to soils and animal feeds. For these purposes, the cobalt sulfate is produced by treating cobalt oxide with sulfuric acid. [1] Being commonly available commercially, the heptahydrate is a routine source of cobalt in coordination ...
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Cobalt powder reacts with ammonia to form two kinds of nitrides, Co 2 N and Co 3 N. Cobalt reacts with phosphorus or arsenic to form Co 2 P, CoP, [2] CoP 2, [6] CoAs 2 and other substances. [2] The former three compounds are of interest as catalysts for water electrolysis. [6] [7] [8]
It is prepared by combining solutions cobaltous sulfate and sodium bicarbonate: CoSO 4 + 2 NaHCO 3 → CoCO 3 + Na 2 SO 4 + H 2 O + CO 2. This reaction is used in the precipitation of cobalt from an extract of its roasted ores. [5] CoCO 3 adopts a structure like calcite, consisting of cobalt in an octahedral coordination geometry. [7]
Cobalt(II) chloride is an inorganic compound, a salt of cobalt and chlorine, with the formula CoCl 2.The compound forms several hydrates CoCl 2 ·n H 2 O, for n = 1, 2, 6, and 9. . Claims of the formation of tri- and tetrahydrates have not been confirmed
Cobalt(II) hydroxide or cobaltous hydroxide is the inorganic compound with the formula Co(OH) 2, consisting of divalent cobalt cations Co 2+ and hydroxide anions OH −. The pure compound, often called the "beta form" (β-Co(OH) 2) is a pink solid insoluble in water. [2] [3]
Cobalt acetate is a precursor to various oil drying agents, catalysts that allow paints and varnishes to harden. [4]Anhydrous cobalt acetate is a widely used source of cobalt in the synthesis of materials, [5] catalyst, [6] and complexes.
It is used in the preparation of cobalt catalysts, and cobalt metal powder for powder-metallurgical applications. It is made in process of recycling lithium-ion batteries, where the cobalt is obtained from cathode material (LiCoO 2) by leaching with sulfuric acid and then precipitated with ammonium oxalate. [citation needed]
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