Constituent MgCl2-6H2O (hexahydraite Magnesium Chloride) | SSHADE

Constituent

Name: MgCl2-6H2O (hexahydraite Magnesium Chloride)
Official name: Magnesium(II) chloride hexahydrate

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: $Mg^{2+}.Cl^-_2 \bullet 6(H_2O)$
Chemical formula: MgCl2.6(H2O)
Elemental formula: (Mg2+) (Cl-)2 H12 O6
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	0.1111111111111111	1	constituent cation	main
	$Cl^-$	Chloride anion	element	2	0.2222222222222222	1	constituent anion	main
	$H_2O$	Water	molecule	6	0.6666666666666666	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
	$-O \dots H-$	12
	$-O-H$	2	main

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

Phase type: crystalline

Crystallography

Crystal system: monoclinic
Crystal class: prismatic
Crystal class symbol: 2/m (C2h)
Crystal spacegroup: C2/m

Physical properties

Molar mass: 203.31 $g/mol$
Density: 1.57 $g/cm^3$

Optical properties

Refringence type: biaxial
Refringence sign: positive
Birefringence: 0.033
Refraction index $n_{\alpha}$: 1.495
Refraction index $n_{\beta}$: 1.507
Refraction index $n_{\gamma}$: 1.528
Dispersion V: r > v, weak
Color: colorless, white
Diaphaneity: transparent to translucent
Luster: vitreous