Constituent
Name
Co(II)-nitrate hexahydrate
Official name
Cobalt(II) nitrate hexahydrate
Family
ionic solid
Class
normal salt
Compound type
nitrate
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$Co^{2+}.(NO_3^-)_2 \bullet 6H_2O$
Chemical formula
Co(N03)2.6H2O
Elemental formula
(Co2+) (N+)4 O8 (O-)4 H12
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Co^{2+}$ Cobaltous cation element 1 0.1111111111111111 1 constituent cation main
$(NO_3)^-$ Nitrate anion chemical function 2 0.2222222222222222 1 anionic radical main
$H_2O$ Water molecule 6 0.6666666666666666 1 hydration main
Composition comments
better described as hexaaquacobalt(II) nitrate, [Co(OH_2)_6]^{2+}[NO_3]^-_2
Chemical functions
  Function Number Relevance
$(NO_3)^-$ 2
$R-OH$ 2 main
Chemical bonds
  Bond Number Relevance
$\cdot Co^{2+} \cdot O^{-}-$ 2
$-O-H$ 2 main
$\dddot - \dddot - N^+ \dddot - O^{-2/3}$ 3
Class
normal salts (07)
Type
hydrated simple normal salts (07.04)
Phase type
crystalline
Crystal system
monoclinic
Comments
consists of discrete $[Co(OH_2)6]^{2+} and [NO_3]^−$ ions
Texture
polycrystalline
Molar mass
291.03 $g/mol$
Density
1.88 $g/cm^3$
Refringence type
biaxial
Refraction index $n_{\alpha}$
1.52