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Cobalt(II) sulfate heptahydrate. Cobalt(II) sulfate is any of the inorganic compounds with the formula CoSO 4 (H 2 O) x. Usually cobalt sulfate refers to the hexa- or heptahydrates CoSO 4. 6H 2 O or CoSO 4. 7H 2 O, respectively. [1] The heptahydrate is a red solid that is soluble in water and methanol. Since cobalt(II) has an odd number of ...
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Cobalt can easily react with nitric acid to form cobalt(II) nitrate Co(NO 3) 2. Cobalt(II) nitrate exists in the anhydrous form and the hydrate form, of which the hexahydrate is the most common. Cobalt nitrate hexahydrate (Co(NO 3) 2 ·6H 2 O) is a red deliquescence crystal that is easily soluble in water, [12] and its molecule contains cobalt ...
Aplowite is a very rare mineral with the formula CoSO 4 •4H 2 O, a naturally occurring cobalt(II) sulfate tetrahydrate. It is the lower hydrate when compared to bieberite (heptahydrate) and moorhouseite (hexahydrate), and a higher hydrate when compared to cobaltkieserite (monohydrate). It occurs together with moorhouseite within efflorescences.
The compound is prepared by oxidation of cobalt(II) salts in the presence of sodium nitrite: [3] 4 [Co(H 2 O) 6 ](NO 3 ) 2 + O 2 + 24 NaNO 2 → 4 Na 3 [Co(NO 2 ) 6 ] + 8 NaNO 3 + 4 NaOH + 22 H 2 O Application for analysis of potassium
Cobalt(II) oxalate is the inorganic compound with the formula of CoC 2 O 4. Like other simple inorganic oxalates, it is a coordination polymer. The oxalate ligands bridge of Co(OH 2) 2 centres. Each cobalt adopts octahedral coordination geometry. [1] It is used in the preparation of cobalt catalysts, and cobalt metal powder for powder ...
Cobalt(II) azide is an inorganic chemical compound with the formula Co(N 3) 2. It can be formed through the reaction between dicobalt octacarbonyl and iodine azide. [1] Co 2 (CO) 8 + 4IN 3 → 2Co(N 3) 2 + 8CO + 2I 2
Cobalt(II,III) oxide is an inorganic compound with the formula Co 3 O 4. It is one of two well characterized cobalt oxides. It is a black antiferromagnetic solid. As a mixed valence compound, its formula is sometimes written as Co II Co III 2 O 4 and sometimes as CoO•Co 2 O 3. [4]