2306.     MOND, L., LANGER, C., AND QUINKE, F.  Action of Carbon Monoxide on Nickel.  Proc. Chem. Soc., vol. 86, 1890, pp. 112-113; Chem. News, vol. 62, 1890, p. 97; Jour. Soc. Chem. Ind., vol. 9, 1890, p. 808.

        CO in contact with Ni at temperatures 350°-450° was found to decompose, a compound of C and Ni being formed.  It was identified as Ni carbonyl Ni(CO)₄.  Similar experiments with other metals, such as Co, Fe, Cu, and Pt, gave negative results.