Cobalt(II) iodide

Cobalt(II) iodide
Names
IUPAC name
Cobalt(II) iodide
Other names
cobaltous iodide, cobalt diiodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.035.697 Edit this at Wikidata
EC Number
  • 239-283-2
UNII
  • InChI=1S/Co.2HI/h;2*1H/q+2;;/p-2 ☒N
    Key: AVWLPUQJODERGA-UHFFFAOYSA-L ☒N
  • InChI=1/Co.2HI/h;2*1H/q+2;;/p-2
    Key: AVWLPUQJODERGA-NUQVWONBAD
  • [Co+2].[I-].[I-]
Properties
CoI2
Molar mass 312.7421 g/mol (anhydrous)
420.83 g/mol (hexahydrate)
Appearance α-form: black hexagonal crystal
β-form: yellow powder
Density α-form: 5.584 g/cm3
β-form: 5.45 g/cm3
hexahydrate: 2.79 g/cm3
Melting point α-form: 515-520 °C under vacuum
β-form: converts to α-form at 400 °C
Boiling point 570 °C (1,058 °F; 843 K)
67.0 g/100 mL[1]
+10,760·10−6 cm3/mol
Hazards
GHS labelling:
GHS07: Exclamation markGHS08: Health hazard
Warning
H302, H312, H315, H319, H332, H335
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
3
0
1
Related compounds
Other anions
 Cobalt(II) fluoride
Cobalt(II) chloride
Cobalt(II) bromide
Other cations
 Nickel(II) iodide
Copper(I) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cobalt(II) iodide or cobaltous iodide are the inorganic compounds with the formula CoI2 and the hexahydrate CoI2(H2O)6. These salts are the principal iodides of cobalt.[2]

  1. ^ Perry, Dale L.; Phillips, Sidney L. (1995), Handbook of Inorganic Compounds, San Diego: CRC Press, pp. 127–8, ISBN 0-8493-8671-3, retrieved 2008-06-03
  2. ^ Cite error: The named reference Brauer was invoked but never defined (see the help page).