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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 ...
Nickel chloride NiCl 2 is yellow, crystallising in the cadmium chloride structure. It can form a hexahydrate, NiCl 2 ·6H 2 O, a tetrahydrate NiCl 2 ·4H 2 O over 29 °C and a dihydrate, NiCl 2 ·2H 2 O over 64 °C. [3] Ammine complexes like hexaamminenickel chloride also exist. Nickel bromide NiBr 2 is yellow, also crystallising in
Hexaamminenickel chloride is the chemical compound with the formula [Ni(NH 3) 6]Cl 2. 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]
Other double trichlorides include potassium nickel trichloride KNiCl 3 ·5H 2 O, [62] yellow cesium nickel trichloride CsNiCl 3, [62] lithium nickel trichloride LiNiCl 3 ·3H 2 O, [62] hyrdrazinium nickel tetrachloride, [62] and nickel ammonium chloride hexahydrate NH 4 NiCl 3 ·6H 2 O. [63] The tetrachloronickelates contain a tetrahedral NiCl ...
Cu(C 7 H 5 O 2) 2: blue Cobalt(II) chloride: CoCl 2: dep blue Cobalt(II) chloride hexahydrate: CoCl 2 ·6H 2 O deep magenta Manganese(II) chloride tetrahydrate: MnCl 2 ·4H 2 O pink Copper(II) chloride dihydrate: CuCl 2 ·2H 2 O blue-green Nickel(II) chloride hexahydrate: NiCl 2 ·6H 2 O green Lead(II) iodide: PbI 2: yellow Ammonium dichromate ...
Nickel(II) chloride is made by dissolving nickel or its oxide in hydrochloric acid. It is usually found as the green hexahydrate, whose formula is usually written NiCl 2 ·6H 2 O. When dissolved in water, this salt forms the metal aquo complex [Ni(H 2 O) 6] 2+. Dehydration of NiCl 2 ·6H 2 O gives yellow anhydrous NiCl 2. [48] Some ...
"Nickel dichloride hexahydrate" consists of the chloride complex trans-[NiCl 2 (H 2 O) 4 plus water of crystallization. As indicated in the table below, many hydrates of metal chlorides are molecular complexes. [78] [79] These compounds are often important commercial sources of transition metal chlorides. Several hydrated metal chlorides are ...
Nickel(II) perchlorate is a collection of inorganic compounds with the chemical formula of Ni(ClO 4) 2 (H 2 O) x.Its colors of these solids vary with the degree of hydration. For example, the hydrate forms cyan crystals, the pentahydrate forms green crystals, but the hexahydrate (Ni(ClO 4) 2 ·6H 2 O) forms blue crystals.