Copper(II) chloride dihydrate | SSHADE

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Solid phase

Official name: Copper(II) chloride dihydrate

Name and identifiers

Secondary names: Cupric chloride dihydrate; Copper chloride dihydrate
CAS number: 10125-13-0

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 and bonds

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)

Crystallography

Phase type: crystalline
Comments: Crystal structure: distorted CdI2 structure - Coordination geometry: octahedral

Physical properties

Molar mass: 170.48 $g/mol$
Density: 2.51 $g/cm^3$

Thermodynamical properties

State NTP

solid

Phase transitions

Phase transition type	Other phases	Temperature - Pressure
solid-solid	anhydrous $CuCl_2$	373K, 100°C

Optical properties

Pure color: blue-green

Links and Publications

Links

Wikipedia: Copper(II) chloride