1855. ------. [KINCAID, J. F., AND STRONG, J.
S.] (Rohm & Haas Co.). Nickel Carbonyl. United States Patent 2,548,728,
Apr. 10, 1951. Chem. Abs., vol. 45, 1951, p. 6357.
In a process similar to that described in United
States Patent 2,548,727 (abs. 1854) Ni (OH)2 is treated with CO in
the presence of 2.5-25 mole % (based on Ni (OH)2) of cyanide ion
obtained from Na, K, Ca, Ba, or Sr cyanides.
