Potassium hydrogen diiodate CAS 13455-24-8
| CAS No. | 13455-24-8 |
| Molecular Formula | HIO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 389.90 g/mol gives Potassium hydrogen diiodate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Potassium hydrogen diiodate (CAS 13455-24-8), molecular formula HIO3IO3K and molecular weight 389.90 g/mol, is a CATO reference standard with documented purity and traceability.
Potassium hydrogen diiodate (HIO3IO3K) contains a salt form, iodine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | HIO3 IO3 K |
| Molecular Weight | 389.90 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 |
| Halogen Content | I-containing |
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Why CATO?
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