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Nickel(II) chloride is a mild Lewis acid used for the regioselective isomerization of dienols and selective reduction of alkenes to alkanes in presence of Lithium aluminum hydride. It is used as a precursor to nickel boride, finely divided nickel. It acts as a catalyst to prepare dialkyl arylphosphonates from phosphites and aryl iodide. It finds application in the electroplating of nickel onto other metal items. It is also used in the synthesis of semiconducting metal-containing polymers.
For formation and reactions of nickel boride, see Sodium borohydride, 35788.
For a brief feature on uses of NiCl2 and its hydrate in synthesis, see: Synlett, 279 (2003).
Güvenatam, B.; Heeres, E. H. J.; Pidko, E. A.; Hensen, E. J. M. Decomposition of lignin model compounds by Lewis acid catalysts in water and ethanol. J. Mol. Catal. A: Chem. 2015, 410, 89-99.
Tian, Y.; Etschmann, B.; Liu, W.; Borg, S.; Mei, Y.; Testemale, D.; O'Neill, B.; Rae, N.; Sherman, D. M.; Ngothai, Y.; Johannessen, B.; Glover, C.; Brugger, J. Speciation of nickel(II) chloride complexes in hydrothermal fluids: In situ XAS study. Chem. Geol. 2012, 334, 345-363.
Hazard Statements: H301-H331-H315-H334-H317-H341-H350-H360-H372
Toxic if swallowed. Toxic if inhaled. Causes skin irritation. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction. Suspected of causing genetic defects. May cause cancer. May damage fertility or the unborn child. Causes damage to organs through prolonged or repeated exposure.
Precautionary Statements: P260-P284-P201-P301+P310a-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Wear respiratory protection. Obtain special instructions before use. IF SWALLOWED: Immediately call a POISON CENTER/doctor Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.