Constituent (NH4)6H2W12O40 | SSHADE

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Constituent

Name: (NH4)6H2W12O40
Official name: Ammonium metatungstate

Family: ionic solid
Class: acid salt
Compound type: tungstate

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0
Mole fraction: 1.0

Chemical composition

Formula: $(NH_4^+)_6 \cdot [H_2W_{12}O_{40}]^{6-}$
Chemical formula: (NH4)6H2W12O40
Elemental formula: (N+)6 (H)26-2 W12 O34 (O-)6
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$H_4 >\mid N^+$	quaternary ammonium ion group	chemical function	6	0.8571428571428571	1	molecular ion	main
	$\alpha-[H_2W_{12}O_{40}]^{6-}$	Protonated metatungstate anion	molecule	1	0.14285714285714285	1	molecular ion	main

Chemical functions and bonds

Chemical functions

	Function	Number
	$H_4 >\mid N^+$	6

Chemical bonds

	Bond	Number	Relevance
	$\geq\mid W-O$	66	main
	$\geq\mid W-O^-$	6	main
	$-O-H$	2	main

Class: acid salts (05)
Type: simple acid salts (05.01)

Phase type: crystalline

Crystallography

Crystal system: isometric (cubic)
Comments: distorded cubic at high hydration

Texture: polycrystalline

Physical properties

Molar mass: 2956.2 $g/mol$
Density: 5.293 $g/cm^3$

Optical properties

Refringence type: isotropic
Color: beige