Nickel(Ii) Trifluoroacetate; [1] Nickel(Ii) Propionate; [2] Nickel Bis(Benzenesulfonate); [3] Nickel(Ii) Hydrogen Citrate; [4] Citric Acid, Ammonium Nickel Salt; [5] Citric Acid, Nickel Salt; [6] Nickel Bis(2-Ethylhexanoate); [7] 2-Ethylhexanoic Acid, Nickel Salt; [8] Dimethylhexanoic Acid Nickel Salt; [9] Nickel(Ii) Isooctanoate; [10] Nickel Isooctanoate; [11] Nickel Bis(Isononanoate); [12] Nickel(Ii) Neononanoate; [13] Nickel(Ii) Isodecanoate; [14] Nickel(Ii) Neodecanoate; [15] Neodecanoic Acid, Nickel Salt; [16] Nickel(Ii) Neoundecanoate; [17] Bis(D-Gluconato-O1,O2)Nickel; [18] Nickel 3,5-Bis(Tert-Butyl)-4-Hydroxybenzoate; [19] Nickel(Ii) Palmitate; [20](Isononanoato-O)Nickel; [21](Isooctanoato-O)Nickel; [22](Neodecanoato-O)Nickel; [23](Isodecanoato-O)Nickel; [24](Neodecanoato-O)Nickel; [25](Isooctanoato-O)Nickel; [26](Isononanoato-O)Nickel; [27](Neodecanoato-O)Nickel; [28] Fatty Acids, C6-19-Branched, Nickel Salts; [29] Fatty Acids, C8-18 And C18-Unsaturated, Nickel Salts; [30] 2,7-Naphthalenedisulfonic Acid, Nickel(Ii) Salt; [31]