Printed from https://www.webqc.org

Properties of Cobalt(II) iodide

Properties of Cobalt(II) iodide (CoI2):

Compound NameCobalt(II) iodide
Chemical FormulaCoI2
Molar Mass312.742135 g/mol

Chemical structure
CoI2 (Cobalt(II) iodide) - Chemical structure
Lewis structure
3D molecular structure
Physical properties
Appearanceα-form: black hexagonal crystal β-form: yellow powder
Solubility670.0 g/100mL
Density5.5840 g/cm³
Helium 0.0001786
Iridium 22.562
Melting515.00 °C
Helium -270.973
Hafnium carbide 3958
Boiling570.00 °C
Helium -268.928
Tungsten carbide 6000

Alternative Names

cobaltous iodide, cobalt diiodide

Elemental composition of CoI2
ElementSymbolAtomic weightAtomsMass percent
CobaltCo58.933195118.8440
IodineI126.90447281.1560
Mass Percent CompositionAtomic Percent Composition
Co: 18.84%I: 81.16%
Co Cobalt (18.84%)
I Iodine (81.16%)
Co: 33.33%I: 66.67%
Co Cobalt (33.33%)
I Iodine (66.67%)
Mass Percent Composition
Co: 18.84%I: 81.16%
Co Cobalt (18.84%)
I Iodine (81.16%)
Atomic Percent Composition
Co: 33.33%I: 66.67%
Co Cobalt (33.33%)
I Iodine (66.67%)
Identifiers
CAS Number52595-03-6
SMILES[Co+2].[I-].[I-]
Hill formulaCoI2

Related compounds
FormulaCompound name
CoI3Cobalt(III) iodide

Related
Molecular weight calculator
Oxidation state calculator

Chemical Compound Properties Database

This database contains physical properties and alternative names for thousands of chemical compounds. In chemical formula you may use:
  • Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
  • Functional groups: D, T, Ph, Me, Et, Bu, AcAc, For, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
  • parenthesis () or brackets [].
  • Common compound names.
Examples: H2O, CO2, CH4, NH3, NaCl, CaCO3, H2SO4, C6H12O6, water, carbon dioxide, methane, ammonia, sodium chloride, calcium carbonate, sulfuric acid, glucose.

The database includes melting points, boiling points, densities, and alternative names collected from various chemical sources.

What are compound properties?

Chemical compound properties include physical characteristics such as melting point, boiling point, and density, which are important for chemical identification and applications. Alternative names help identify the same compound when referenced by different naming conventions.

How to use this tool?

Enter a chemical formula (like H2O) or compound name (like water) to look up available properties and alternative names. The tool will search through the database and display any available physical properties and known alternative names for the compound.
Please let us know how we can improve this web app.
Menu Balance Molar mass Gas laws Units Chemistry tools Periodic table Chemical forum Symmetry Constants Contribute Contact us
How to cite?