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Kadmiumoksied

Eienskappe

Algemeen

Naam Kadmiumoksied 
IUSTC-naam Kadmiumoksied
Struktuurformule van
Struktuurformule van
Chemiese formule CdO
Molêre massa 128,41 [g/mol][1]
CAS-nommer 1306-19-0[1]  
Voorkoms geelbruin vastestof[1]  
Reuk reukloos[1]
Fasegedrag  
Selkonstantes a=470pm[2]  
Ruimtegroep Fm3
Nommer 225  
Strukturbericht B1
Smeltpunt 1426 °C [1]
Kookpunt 1559 °C (sublimeer) [1]
Digtheid 8,15 g/cm3 (kristallyn); 6,95 g/cm3(amorf) [1]
Oplosbaarheid onoplosbaar <1 [g/L][1] 
Brekingsindeks 2,49[1]

Suur-basis eienskappe

pKa

Veiligheid

Flitspunt  
LD50 72 [mg/kg] (rot; oraal) [1]

Tensy anders vermeld is alle data vir standaardtemperatuur en -druk toestande.

 
Portaal Chemie

Kadmiumoksied is 'n verbinding van kadmium met suurstof met die formule CdO

Dit kom in die natuur as die mineraal monteponiet voor en word gevorm as kadmiummetaal deur die lug se suurstof geoksideer word. Dit is 'n n-tipe halfgeleier. Sy bandgaping is 2,5 eV en die h+-beweeglikheid is 531 [cm2/Vs]. [3]

Kristalstruktuur

Kadiumoksied kistalliseer met die haliet-struktuur,[2] wat die B1-struktuur van die strukturbericht-klassifikasie is.

Gebruike

Dit word as 'n elektroplateringschemikalie en in die vervaardiging van kadmiumelektrodes gebruik. Voorheen is dit deur veeartse gebruik om wurms en parasiete dood te maak.[1]

Verwysings

  1. 1,00 1,01 1,02 1,03 1,04 1,05 1,06 1,07 1,08 1,09 1,10 "Cadmium oxide (compound)". PubChem NIH.
  2. 2,0 2,1 Kelly, A.; Knowles, K.M. (2012). Appendix 7: Crystal Structure Data. In Crystallography and Crystal Defects. doi:10.1002/9781119961468.app7.((cite book)): AS1-onderhoud: gebruik authors-parameter (link)
  3. "Cadmium oxide". AZO materials.
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Kadmiumoksied
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