Cov khoom ntawm Nickel
| Atomic naj npawb | 28 |
| CAS nr | 7440-02-0 : kuv |
| Atomic loj | 58.69 ib |
| Melting point | 1453 ℃ |
| Boiling point | 2732 ℃ |
| Atomic ntim | 6.59 g / cm³ |
| Qhov ntom | 8.90 g / cm³ |
| Crystal qauv | face-centered kub |
| Kev nplua nuj nyob rau hauv lub ntiaj teb crust | 8.4 × 101mg⋅kg-1 |
| Ceev lub suab | 4970 (m / S) |
| Thermal expansion | 10.0 × 10^-6 / ℃ |
| Thermal conductivity | 71,4 m² os |
| Hluav taws xob resistivity | 20mΩ hli |
| Mohs hardness | 6.0 |
| Vickers hardness | 215 Hwv |
Nickel yog ib qho nyuaj, ductile, thiab ferromagnetic hlau uas yog polished heev thiab corrosion-resistant. Nickel belongs rau cov pab pawg neeg ntawm hlau hlub ntsiab. Lub ntiaj teb lub hauv paus tseem ceeb yog tsim los ntawm cov hlau thiab npib tsib xee. Hlau magnesium pob zeb nyob rau hauv lub crust muaj ntau nickel tshaj silicon txhuas pob zeb, piv txwv li, peridotite muaj 1000 npaug ntau nickel tshaj granite, thiab gabbro muaj 80 npaug ntau nickel tshaj granite.
chemical khoom
Cov khoom siv tshuaj muaj zog dua, tab sis ruaj khov dua li hlau. Tsis yooj yim rau oxidize nyob rau hauv cov huab cua ntawm chav tsev kub thiab tsis yooj yim react nrog concentrated nitric acid. Fine nickel hlau yog flammable thiab reacts nrog halogens thaum rhuab, maj mam dissolving nyob rau hauv dilute acid. Muaj peev xwm nqus tau ntau npaum li cas ntawm hydrogen gas.
Cov khoom kub ntawm Nickel
