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Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO 4 (H 2 O) 6. This highly soluble turquoise coloured salt is a common source of the Ni 2+ ion for electroplating. Approximately 40,000 tonnes were produced in 2005. [1]
When heated it dehydrates and then ends up producing nickel oxide and nickel sulfate. [5] Nickel thiosulfate NiS 2 O 3 has the same structure as the magnesium salt. It has alternating layers of octahedral shaped nickel 2+ hexahydrate, and tetrahedral shaped S 2 O 3 2− perpendicular to the β direction. [6] When heated to 90 °C it decomposes ...
As a mineral the ammonium nickel salt, (NH 4) 2 Ni(SO 4) 2 · 6 H 2 O, can be called nickelboussingaultite. [38] With sodium, the double sulfate is nickelblödite Na 2 Ni(SO 4) 2 · 4 H 2 O from the blödite family. Nickel can be substituted by other divalent metals of similar sized to make mixtures that crystallise in the same form. [39]
Double fluorides include the above-mentioned fluoroanion salts, and those fluoronickelates such as NiF 4 and NiF 6.Other odd ones include an apple green coloured KNiF 3 ·H 2 O and NaNiF 3 ·H 2 O, aluminium nickel pentafluoride AlNiF 5 ·7H 2 O, ceric nickelous decafluoride Ce 2 NiF 10 ·7H 2 O, niobium nickel fluoride Ni 3 H 4 Nb 2 F 20 ·19H 2 O, vanadium nickel pentafluoride VNiF 5 ·7H 2 ...
formula name mol struct cell Å ° V Z density colour refs wt a b c β Å 3 g/cm 3; Ni(HCOO) 2 ·2H 2 O: Nickel formate hydrate monoclinic 8.60 7.06 9.21 96°50′ 4 [3] [Ni 20 {(C 5 H 6 O 4) 20 (H 2 O) 8}] · 40 H 2 O: Nickel glutarate cubic 16.581 4559 pale green [20] Ni 9 (OH) 2 (H 2 O) 6 (C 4 H 5 O 2) 8 ·2H 2 O: nickel cyclopropane ...
K 2 Ni(SO 4) 2 · 6 H 2 O [13] Potassium Nickel Sulfate Hexahydrate [14] used as UV filter [48] Rb Ni Rb 2 [Ni(H 2 O) 6](SO 4) 2: Rubidium Nickel Sulfate Hexahydrate 6.221 12.41 9.131 106.055° 677.43 001 surface has step growth of 4.6 Å, optical transmission bands at 250, 500 and 860 nm which are the same as nickel sulfate hexahydrate, but UV ...
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Only four of the six water molecules in the formula is bound to the nickel, and the remaining two are water of crystallization, so the formula of nickel(II) chloride hexahydrate is [NiCl 2 (H 2 O) 4]·2H 2 O. [9] Cobalt(II) chloride hexahydrate has a similar structure. The hexahydrate occurs in nature as the very rare mineral nickelbischofite.