raney nickel उदाहरण वाक्य

उदाहरण वाक्य

1. However, this is the preferred alloy composition for production of Raney nickel catalysts currently in use.
2. Commercially available Raney nickel has an average Ni surface area of 100 m 2 per gram of catalyst.
3. Raney nickel is produced when a block of nickel-aluminium alloy is treated with concentrated sodium hydroxide.
4. For this reason, commercial Raney nickel is available in both " active " and " inactive " forms.
5. An alternative process operates in diluted ADN conditions using HMD itself as a solvent and Raney Nickel as catalyst.
6. This catalyst, now commonly known as Raney nickel, was the subject of a patent he obtained in 1927.
7. Raney nickel is notable for being thermally and structurally stable, as well has having a large Teller ) surface area.
8. Even after reaction, Raney nickel contains significant amounts of hydrogen gas, and may spontaneously ignite when exposed to air.
9. In the presence of Raney nickel, it undergoes dehydrogenation to 2-methylimidazole, which can then be further elaborated.
10. "' Raney nickel "'is a solid catalyst composed of fine grains of a nickel-aluminium alloy.