Solid phase
Official name
Cobalt(II) acetate
Secondary names
cobalt salt of acetic acid; acetic acid, cobaltous salt, anhydre; cobalt acetate; Co(OAc)2
CAS number
71-48-7
Type
Family
ionic solid
Class
normal salt
Compound type
organic salt
Chemical composition
Formula
$Co^{2+} \cdot (CH_3COO^-)_2$
Chemical formula
Co(CH3CO2)2
Elemental formula
(Co2+) C4 H6 O2 (O-)2
Isotope mixture type
terrestrial abundance
6.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Co^{2+}$ Cobaltous cation element 1 0.3333333333333333 1 constituent cation main
$(CH_3COO)^-$ Acetate ion molecule 2 0.6666666666666666 1 constituent anion main
Composition comments
alternative structural formula: [CH3]C(=O)O[Co]OC(=O)[CH3] (cf. Wikipedia)
Chemical functions
  Function Number
$R-CH_3$ 1
$R-C(=O)-O^-$ 1
Chemical bonds
  Bond Number
$\cdot Co^{2+} \cdot O^{-}-$ 2
$\geq C-H$ 3
$\eqslantgtr C-C\leq$ 1
$>C=O$ 1
$\eqslantgtr C-O^-$ 1
Class
normal salts (07)
Type
simple normal salts (07.01)
Phase type
crystalline
Molar mass
177.021 $g/mol$
State NTP
solid
Pure color
red, violet
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