Raney nickel
| Dry activated Raney nickel | |
| Identifiers | |
|---|---|
| UNII | |
| Properties | |
| Appearance | Light-gray powder | 
| Hazards | |
| GHS labelling: | |
| 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). Infobox references | |
Raney nickel /ˈreɪniː ˈnɪkəl/, also called spongy nickel, is a fine-grained solid composed mostly of nickel derived from a nickel–aluminium alloy. 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. Raney Nickel is a registered trademark of W. R. Grace and Company. Other major producers are Evonik and Johnson Matthey.