Chromium(VI) trioxide CAS 1333-82-0
| CAS No. | 1333-82-0 |
| Molecular Formula | CrO3 |
| Molecular Weight | 99.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Chromium(VI) trioxide is closely related to an inorganic composition in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Chromium(VI) trioxide (CAS 1333-82-0) is a high-purity analytical reference standard with the molecular formula CrO3 and a molecular weight of 99.99 g/mol.
Chromium(VI) trioxide (CrO3) 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.
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 | CrO3 |
| Molecular Weight | 99.99 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.) | 1957 |
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