Cadmium(II) chloride | SSHADE

Solid phase

Official name: Cadmium(II) chloride

Name and identifiers

Secondary names: Cadmium dichloride; Cadmium chloride
CAS number: 10108-64-2

Family: ionic solid
Class: normal salt
Compound type: chloride

Chemical composition

Formula: $Cd^{2+} \cdot (Cl^-)_2$
Chemical formula: CdCl2
Elemental formula: (Cd2+) (Cl-)2
Isotope mixture type: terrestrial abundance

6.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Cd^{2+}$	Cadmium cation	element	1	0.3333333333333333	1	constituent cation	main
	$Cl^-$	Chloride anion	element	2	0.6666666666666666	1	constituent anion	main

Composition comments: 2 hydtates are known: CdCl2•H2O and CdCl2•5H2O

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$\cdot Cd^{2+} \cdot Cl^{-}$	6

Class: normal salts (07)
Type: simple normal salts (07.01)

Crystallography

Phase type: crystalline
Crystal system: trigonal
Crystal class: ditrigonal-scalenohedral
Crystal class symbol: -3m (D3d)
Crystal spacegroup: R-3m
Comments: Although considered to be ionic, CdCl2 has considerable covalent character to its bonding.

Physical properties

Molar mass: 183.31 $g/mol$
Density: 4.05 $g/cm^3$

Thermodynamical properties

State NTP

solid

Phase transitions

Phase transition type	Other phases	Temperature - Pressure
solid-liquid	liquid	568°C (841 K) @1 bar

Optical properties

Refringence type: uniaxial
Pure color: colorless
Color: colorless, white
Diaphaneity: transparent to translucent
Luster: vitreous

Links and Publications

Links

Wikipedia: Cadmium chloride