| CAS No. | 12027-43-9 |
| Molecular Formula | 4*O9W3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Tungsten silicate hydrate (CAS 12027-43-9), a certified reference material (molecular formula O9W3H4O4SiH2O, MW 809.64 g/mol) for analytical method development and quality control.
Tungsten silicate hydrate (O9W3H4O4SiH2O) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
As a certified reference material (CRM), Tungsten silicate hydrate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | 4*O9W3 H4O4Si H2O |
| Molecular Weight | 809.64 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |