![]() ^ 11.1.5 The unusual type of myocardiopathy recognized in 19 in Quebec (Canada), Minneapolis (Minnesota), Leuven (Belgium), and Omaha (Nebraska) was associated with episodes of acute heart failure (e/g/, 50 deaths among 112 beer drinkers).Annals of the New York Academy of Sciences. "Quebec beer-drinkers' cardiomyopathy: Clinical and hemodynamic aspects". Resolution of the Tris(ethylenediamine)cobalt(III) Ion. 6H 2O" Acta Crystallographica Section C 1988, volume 44, p599-p601."Refinement of the Crystal Structure of CoSO 4 7H 2O, 0.00 ≤ x ≤ 0.46: Synthesis, Single-Crystal Structure Analysis, and Optical Spectroscopy"."Co 2+-Cu 2+ Substitution in Bieberite Solid-Solution Series, (Co 1−x Cu x)SO 4 Ullmann's Encyclopedia of Industrial Chemistry. ![]() ^ a b c d e Donaldson, John Dallas Beyersmann, Detmar (2005).įurthermore, cobalt(II) sulfate is suspected of causing cancer (i.e., possibly carcinogenic, IARC Group 2B) as per the International Agency for Research on Cancer (IARC) Monographs. In 1965, the addition of a cobalt compound to stabilize beer foam in Canada led to a peculiar form of toxin-induced cardiomyopathy, which came to be known as beer drinker's cardiomyopathy. Although poisonings have rarely resulted from cobalt compounds, their chronic ingestion has caused serious health problems at doses far less than the lethal dose. ![]() Health issues Ĭobalt is an essential mineral for mammals, but more than a few micrograms per day is harmful. These minerals are: biebierite (heptahydrate), moorhouseite (Co,Ni,Mn)SO 4. Rarely, cobalt(II) sulfate is found in form of few crystallohydrate minerals, occurring among oxidation zones containing primary Co minerals (like skutterudite or cobaltite). īeing commonly available commercially, the heptahydrate is a routine source of cobalt in coordination chemistry. For these purposes, the cobalt sulfate is produced by treating cobalt oxide with sulfuric acid. Cobalt(II) sulfate is used in storage batteries and electroplating baths, sympathetic inks, and as an additive to soils and animal feeds. Cobalt pigment is used in porcelains and glass. Hydrated cobalt(II) sulfate is used in the preparation of pigments, as well as in the manufacture of other cobalt salts. Thus, crushed, partially refined ores are treated with sulfuric acid to give red-colored solutions containing cobalt sulfate. Uses and reactions Ĭobalt sulfates are important intermediates in the extraction of cobalt from its ores. It also features 2+ octahedra as well as one water of crystallization. The monoclinic heptahydrate has also been characterized by X-ray crystallography. The hexahydrate is a metal aquo complex consisting of octahedral 2+ ions associated with sulfate anions (see image in table). The hexahydrate converts to the monohydrate and the anhydrous forms at 100 and 250 ☌, respectively. The heptahydrate is only stable at humidity >70% at room temperature, otherwise it converts to the hexahydrate. It forms by the reaction of metallic cobalt, its oxide, hydroxide, or carbonate with aqueous sulfuric acid: Co + H 2SO 4 + 7 H 2O → CoSO 4(H 2O) 7 + H 2 CoO + H 2SO 4 + 6 H 2O → CoSO 4(H 2O) 7 Since cobalt(II) has an odd number of electrons, its salts are paramagnetic. The heptahydrate is a red solid that is soluble in water and methanol. Usually cobalt sulfate refers to the hexa- or heptahydrates CoSO 4. Chemical compound Cobalt(II) sulfate heptahydrateĬobalt(II) sulfate is any of the inorganic compounds with the formula CoSO 4(H 2O) x.
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