Solid phase
Official name
Copper(II) chloride dihydrate
Secondary names
Cupric chloride dihydrate; Copper chloride dihydrate
CAS number
10125-13-0
Type
Family
ionic solid
Class
normal salt
Compound type
chloride
Chemical composition
Formula
$Cu^{2+}.Cl^-_2 \bullet 2H_2O$
Chemical formula
CuCl2.2(H2O)
Elemental formula
(Cu2+) (Cl-)2 H4 O2
Isotope mixture type
terrestrial abundance
10.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Cu^{2+}$ Copper cation element 1 0.2 1 constituent cation main
$Cl^-$ Chloride anion element 2 0.4 1 anionic radical main
$H_2O$ Water molecule 2 0.4 1 hydration main
Chemical functions
  Function Number
$R-OH$ 2
Chemical bonds
  Bond Number
$\cdot Cu^{2+} \cdot Cl^{-}<$ 2
$-O-H$ 2
Class
normal salts (07)
Type
hydrated simple normal salts (07.04)
Phase type
crystalline
Comments
Crystal structure: distorted CdI2 structure - Coordination geometry: octahedral
Molar mass
170.48 $g/mol$
Density
2.51 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid anhydrous $CuCl_2$ 373K, 100°C
Pure color
blue-green
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