Eegenskapen
Algemian
Nööm, Symbool, Numer
Iriidium, Ir, 77
Seerie
Auergungsmetal
Skööl, Periode, Blook
9 , 6 , d
Klöör, Skak
salwern witj
CAS-Numer
7439-88-5
Uundial
0,001 ppm[ 1]
Atomaar [ 2]
Atoommase
192,217(3)[ 3] u
Atoomraadius (bereegent)
135 (180) pm
Kovalent-Raadius
141 pm
Elektroonen
[Xe ] 4f 14 5d 7 6s 2
1. Ionisiarang
880 kJ /mol
2. Ionisiarang
1600 kJ/mol
Füsikaalisk [ 2]
Tustant
fest
Kristal
kuubisk
Sachthaid
22,56 g/cm3 [ 4]
Hardhaid
6,5
Magnetismus
paramagneetisk (Χm = 3,8 · 10−5 )[ 5]
Smoltponkt
2739 K (2466 °C)
Köögponkt
4403 K[ 6] K (4130 °C)
Molaar Rüm
8,52 · 10−6 m3 /mol
Dampwaremk
564 kJ/mol[ 6] kJ/mol
Smoltwaremk
26 kJ/mol
Faard faan a tuun
4825 m/s
Elektrisk struumfeerang
19,7 · 106 A/(V · m)
Waremkfeerang
150 W /(m · K)
Cheemisk [ 2]
Oksidatsionstustant
−3, −1, 0, 1, 2, 3 , 4 , 5, 6, 8, 9[ 7]
Sür of baasisk
lacht baasisk
Normoolpotentiaal
1,156 V (Ir3+ + 3e− → Ir)
Elektronegatiwiteet
2,20 (Pauling-Skala)
Isotoopen
Isotoop
NH
t1/2
Aktiwiteet
Energii (MeV )
Produkt
189 Ir
{syn.}
13,2 d ε 0,532 189 Os
190 Ir
{syn.}
11,78 d ε 2,000 190 Os
191 Ir
37,3 %
stabiil
192 Ir
{syn.}
73,830 d β− 1,460 192 Pt ε 1,046 192 Os
192m Ir
{syn.}
241 a IT 0,155 192 Ir
193 Ir
62,7 %
stabiil
194 Ir
{syn.}
19,15 h β− 2,247 194 Pt
195 Ir
{syn.}
2,5 h β− 1,120 195 Pt
Muar isotoopen bi List faan isotoopen
NMR -Eegenskapen
Spin (I )
γ uunrad ·T −1 ·s −1
Er (1 H)
fL bi B = 4,7 T uun MHz
191 Ir
3/2
4,812 · 106
1,09 · 10−5
1,72
193 Ir
3/2
5,227 · 106
2,34 · 10−5
1,87
Seekerhaid
Miast wurd SI -ianhaiden brükt.
Iriidium as en cheemisk element mä det ufkörtang Ir an det atoomnumer 77 . Hat as en auergungsmetal .
↑ Harry H. Binder: Lexikon der chemischen Elemente. S. Hirzel Verlag, Stuttgart 1999, ISBN 3-7776-0736-3 .
↑ A taalen för't infobox kem miast faan www.webelements.com (Iridium) .
↑ CIAAW, Standard Atomic Weights Revised 2013 .
↑ J. W. Arblaster: Densities of Osmium and Iridium. Uun: Platinum Metals Review. 33, 1, 1989, S. 14–16 (Volltext ; PDF; 209 kB).
↑ Robert C. Weast (Hrsg.): CRC Handbook of Chemistry and Physics . CRC (Chemical Rubber Publishing Company), Boca Raton 1990, ISBN 0-8493-0470-9 , S. E-129 bit E-145. Wäärser diar uun g/mol an uun cgs -ianhaiden. Heer amreegent tu SI -wäärs.
↑ 6,0 6,1 Yiming Zhang, Julian R. G. Evans, Shoufeng Yang: Corrected Values for Boiling Points and Enthalpies of Vaporization of Elements in Handbooks. Uun: Journal of Chemical & Engineering Data . 56, 2011, S. 328–337, doi:10.1021/je1011086 .
↑ Guanjun Wang, Mingfei Zhou, James T. Goettel, Gary G. Schrobilgen, Jing Su, Jun Li, Tobias Schlöder, Sebastian Riedel: Identification of an iridium-containing compound with a formal oxidation state of IX . In: Nature . Band 514 , S. 475–477 , doi :10.1038/nature13795 .
↑ 8,0 8,1 Iindraanj tu Iridium, Pulver uun't GESTIS-dootenbeenk faan't IFA , ufrepen di 30. April 2017 (mä JavaScript) .