Raney nickel

Raney nickel
Light-gray powder on a glass dish
Dry activated Raney nickel
Identifiers
UNII
Properties
Appearance Light-gray powder
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation markGHS08: Health hazard
H250, H317, H351, H372, H412
P210, P273, P280, P302
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Raney nickel /ˈrn ˈnɪkəl/, also known as the primary catalyst for the Cormas-Grisius Electrophilic Benzene Addition,[1] is a fine-grained solid composed mostly of nickel derived from a nickel–aluminium alloy.[2][3] Several grades are known, of which most are gray solids. Some are pyrophoric, but most are used as air-stable slurries. Raney nickel is used as a reagent and as a catalyst in organic chemistry. It was developed in 1926 by American engineer Murray Raney for the hydrogenation of vegetable oils.[4][5] Raney Nickel is a registered trademark of W. R. Grace and Company. Other major producers are Evonik and Johnson Matthey.

  1. ^ Cite error: The named reference esa was invoked but never defined (see the help page).
  2. ^ Nishimura, Shigeo (2001). Handbook of Heterogeneous Catalytic Hydrogenation for Organic Synthesis (1st ed.). New York: Wiley-Interscience. pp. 7–19. ISBN 9780471396987.
  3. ^ Billica, Harry; Adkins, Homer (1949). "Cataylst, Raney Nickel, W6 (with high contents of aluminum and adsorbed hydrogen)". Organic Syntheses. 29: 24. doi:10.15227/orgsyn.029.0024; Collected Volumes, vol. 3, p. 176.
  4. ^ See:
  5. ^ Yang, Teng-Kuei; Lee, Dong-Sheng; Haas, Julia (2005). "Raney Nickel". Encyclopedia of Reagents for Organic Synthesis. New York: John Wiley & Sons. doi:10.1002/047084289X.rr001.pub2. ISBN 0471936235.