Constituent Magnesium chloride dihydrate | SSHADE

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Constituent

Name: Magnesium chloride dihydrate
Official name: Magnesium(II) chloride dihydrate

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

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0 $\pm$ 0.01
Mole fraction: 1.0

Chemical composition

Formula: $Mg^{2+}.Cl^-_2 \bullet 2(H_2O)$
Chemical formula: MgCl2.2(H2O)
Elemental formula: (Mg2+) (Cl-)2 H4 O2
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Mg^{2+}$	Magnesium(II) cation	element	1	0.2	1	constituent cation	main
	$Cl^-$	Chloride anion	element	2	0.4	1	constituent anion	main
	$H_2O$	Water	molecule	2	0.4	1	hydration	main

Chemical functions and bonds

Chemical functions

	Function	Number	Relevance
	$R-OH$	2	main

Chemical bonds

	Bond	Number	Relevance
	$\cdot Mg^{2+} \cdot Cl^-$	2
	$-O \dots H-$	4
	$-O-H$	2	main

Class: normal salts (07)
Type: hydrated simple normal salts (07.04)

Phase type: crystalline

Crystallography

Comments: Crystal structure: distorted CdI2 structure - Coordination geometry: octahedral

Physical properties

Molar mass: 131.24 $g/mol$
Density: 2.51 $g/cm^3$