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
  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
Crystal system
isometric (cubic)
Comments
distorded cubic at high hydration
Texture
polycrystalline
Molar mass
2956.2 $g/mol$
Density
5.293 $g/cm^3$
Refringence type
isotropic
Color
beige