| CAS No. | 12030-91-0 |
| Molecular Formula | KO3Ta |
| Molecular Weight | 268.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Potassium tantalum oxide (CAS 12030-91-0), molecular formula KO3Ta and molecular weight 268.04 g/mol, is a CATO reference standard with documented purity and traceability.
Potassium tantalum oxide (KO3Ta) 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 | KO3Ta |
| Molecular Weight | 268.04 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 |