| Silicotungstic acid | |
|---|---|
|
Other names
Tungstosilicic acid |
|
| Identifiers | |
| CAS number | 12027-38-2 , 12027-43-9 (hydrate) |
| Properties | |
| Molecular formula | H4[W12SiO40] |
| Molar mass | 2878.2 g/mol |
| Structure | |
| Dipole moment | zero |
| Hazards | |
| EU Index | Not listed |
| Flash point | Non-flammable |
| Related compounds | |
| Related heteropoly acids | Phosphotungstic acid |
| Related compounds | Tungsten trioxide Tungstic acid |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
|
| Infobox references | |
Silicotungstic acid (also known as tungstosilicic acid) is the most commonly encountered heteropoly acid. It is widely used in heterogeneous catalysts, notably in the Showa Denko process for the manufacture of acetic acid.