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Nickel is one of the metals that can form Tutton's salts. The singly charged ion can be any of the full range of potassium, rubidium, cesium, ammonium (), or thallium. [1] As a mineral the ammonium nickel salt, (NH 4) 2 Ni(SO 4) 2 · 6 H 2 O, can be called nickelboussingaultite. [2]
Nickel is one of the metals that can form Tutton's salts. The singly charged ion can be any of the full range of potassium, rubidium, cesium, ammonium (), or thallium. [37] As a mineral the ammonium nickel salt, (NH 4) 2 Ni(SO 4) 2 · 6 H 2 O, can be called nickelboussingaultite. [38]
It is the chloride salt of the metal ammine complex [Ni(NH 3) 6] 2+. The cation features six ammonia (called ammines in coordination chemistry) ligands attached to the nickel (II) ion. [ 1 ]
The nickel organic acid salts are organic acid salts of nickel. In many of these the ionised organic acid acts as a ligand. Nickel acetate has the formula (CH 3 COO) 2 Ni·4H 2 O. It has monodentate acetate and hydrogen bonding. A dihydrate also exists. Nickel acetate is used to seal anodised aluminium. [1]
The univalent cation can be potassium, rubidium, caesium, ammonium (NH 4), deuterated ammonium (ND 4) or thallium. Sodium or lithium ions are too small. The divalent cation can be magnesium , vanadium , chromium , manganese , iron , cobalt , nickel , copper , zinc or cadmium .
However in other organic solvents, or molten salts the tetrachloronickelate ion can form. Nickel can be separated from such a solution in water or methanol, by partitioning it into a cyclohexane solution of amines. [2] Organic ammonium salts of the type (R 3 NH) 2 [NiCl 4] are often thermochromic (R = Me, Et, Pr). Near room temperature, these ...
Nickel(II) chloride (or just nickel chloride) is the chemical compound NiCl 2. The anhydrous salt is yellow, but the more familiar hydrate NiCl 2 ·6H 2 O is green. Nickel(II) chloride, in various forms, is the most important source of nickel for chemical synthesis. The nickel chlorides are deliquescent, absorbing moisture from the air to form ...
The nickel atom can be in a range of oxidation states from +2, +3 to +4. The hexafluoronickelate(IV) 2− ion NiF 6 2− contains nickel in the maximal +4 state, and is in octahedral coordination by the fluoride atoms. It forms a commercially available salt Potassium hexafluoronickelate(IV) K 2 NiF 6.