Renio
75
Re
Grupo
7
Perio
6
Bloko
d
Protonoj
Elektronoj
Neŭtronoj
75
75
111
Ĝeneralaj Propraĵoj
Atoma Nombro
75
Atommaso
186,207
Amasa Nombro
186
Kategorio
Transirmetaloj
Koloro
Griza
Radioaktiva
Ne
From the Latin word Rhenus meaning Rhine
Kristala Strukturo
Simpla Sesangula
Historio
In 1908, Japanese chemist Masataka Ogawa announced that he discovered the 43rd element.
However, later analysis indicated the presence of rhenium (element 75), not element 43.
In 1922, Walter Noddack, Ida Eva Tacke and Otto Berg announced its separation from gadolinite and gave it the present name.
However, later analysis indicated the presence of rhenium (element 75), not element 43.
In 1922, Walter Noddack, Ida Eva Tacke and Otto Berg announced its separation from gadolinite and gave it the present name.
Elektronoj per ŝelo
2, 8, 18, 32, 13, 2
Elektrona Agordo
[Xe] 4f14 5d5 6s2
Chile has the world's largest rhenium reserves
Fizikaj Propraĵoj
Fazo
Solido
Denso
21,02 g/cm3
Fandpunkto
3459,15 K | 3186 °C | 5766,8 °F
Bolpunkto
5869,15 K | 5596 °C | 10104,8 °F
Varmo de Fuzio
33 kJ/mol
Varmo de Vaporiĝo
705 kJ/mol
Specifa Varmo Kapacito
0,137 J/g·K
Krusta Abundo
2,6×10-7%
Universa Abundo
2×10-8%
Bildaj kreditoj: Wikimedia Commons (Alchemist-hp)
A high purity rhenium single crystal made by the floating zone process, an ebeam remelted rhenium bar and as well as a high purity rhenium cube for comparison
CAS Nombro
7440-15-5
PubChem Kunmetita Identiga Nombro
23947
Atomaj Propraĵoj
Atoma Radiuso
137 pm
Kovalenta Radiuso
151 pm
Elektronegativeco
1,9 (Pauling-skalo)
Potencialo de jonigo
7,8335 eV
Atoma Volumo
8,85 cm3/mol
Termika Kondukto
0,479 W/cm·K
Oksidaj Ŝtatoj
-3, -1, 1, 2, 3, 4, 5, 6, 7
Aplikoj
Rhenium is widely used as filaments for mass spectrographs and ion gauges.
It is also used with platinum as catalysts in the production of lead-free, high-octane gasoline.
Nickel-based superalloys of rhenium are used in the combustion chambers, turbine blades, and exhaust nozzles of jet engines.
It is also used with platinum as catalysts in the production of lead-free, high-octane gasoline.
Nickel-based superalloys of rhenium are used in the combustion chambers, turbine blades, and exhaust nozzles of jet engines.
Very little is known about the toxicity of rhenium
Izotopoj
Stabilaj Izotopoj
185ReMalstabilaj Isotopoj
160Re, 161Re, 162Re, 163Re, 164Re, 165Re, 166Re, 167Re, 168Re, 169Re, 170Re, 171Re, 172Re, 173Re, 174Re, 175Re, 176Re, 177Re, 178Re, 179Re, 180Re, 181Re, 182Re, 183Re, 184Re, 186Re, 187Re, 188Re, 189Re, 190Re, 191Re, 192Re, 193Re, 194Re