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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]
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 to form NiS. NiS 2 O 3 can be made from BaS 2 O 3 and NiSO 4 . [ 7 ]
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 ...
Tutton's salts are a family of salts with the formula M 2 M'(SO 4) 2 (H 2 O) 6 (sulfates) or M 2 M'(SeO 4) 2 (H 2 O) 6 (selenates). These materials are double salts, which means that they contain two different cations, M + and M' 2+ crystallized in the same regular ionic lattice. [1]
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
This implicitly puts the value of compounds' other constituents, and the cost of extraction of the element, at zero. ... Nickel: 8.912: 84 (2.327 ... 1×10 −4 (2.77 ...
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]
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.