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Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an…
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catalyst catalysts hydrogen homogeneous organic heterogeneous used nickel using reaction h2 pressure reduction process alkenes metal substrates catalytic also unsaturated
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Hydrogenation | is a | chemical reaction between molecular hydrogen | 0.90 | text |
| nickel | instance of | usually in the presence of a catalyst | 0.80 | text |
| palladium or platinum | instance of | usually in the presence of a catalyst | 0.80 | text |
| platinum black are still used | instance of | precious metal catalysts | 0.80 | text |
| despite the cost.Homogeneous catalystsSome well known homogeneous catalysts are indicated below | instance of | precious metal catalysts | 0.80 | text |
| despite the cost | instance of | precious metal catalysts | 0.80 | text |
| conversion of nitriles to amines or the production of margarine.Homogeneous catalytic hydrogenationThe 1960s witnessed the development of well defined homogeneous catalysts using transition metal complexes | instance of | which is widely used to catalyze hydrogenation reactions | 0.80 | text |
| e.g. | instance of | which is widely used to catalyze hydrogenation reactions | 0.80 | text |
| Wilkinson's catalyst | instance of | which is widely used to catalyze hydrogenation reactions | 0.80 | text |
| conversion of nitriles to amines or the production of margarine | instance of | which is widely used to catalyze hydrogenation reactions | 0.80 | text |
| isopropanol.Coal liquifaction can be achieved by heating coal under hydrogen pressure | instance of | and alcohols | 0.80 | text |
| tetrahydronaphthalene | instance of | The process is enhanced in the presence of organic hydrogen donors | 0.80 | text |
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