| CAS No. | 26970-82-1 |
| Molecular Formula | O3Se |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), Sodium Selenite Pentahydrate 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.
CATO supplies Sodium Selenite Pentahydrate (CAS 26970-82-1), a certified reference material (molecular formula O3SeNaH2O, MW 167.97 g/mol) for analytical method development and quality control.
Sodium Selenite Pentahydrate (O3SeNaH2O) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | O3Se 2*Na 5*H2O |
| Molecular Weight | 167.97 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1964 |