Rhodizonic Acid DiNa Salt Indicator 5G
Rhodizonic acid disodium salt indicator for sulfate titration. CAS 523-21-7, molar mass 214.04 g/mol.
Manufacturer: Merck
Catalog ID: 106595.0005
Stock: In Stock
Description
| Catalogue Number | 106595 |
| Synonyms | 1,2-Dihydroxy-3,4,5,6-tetraoxo-1-cyclohexene disodium salt, Sodium rhodizonate |
Product Information
| CAS number | 523-21-7 |
| EC number | 208-340-3 |
| Hill Formula | C₆Na₂O₆ |
| Molar Mass | 214.04 g/mol |
| HS Code | 2914 40 90 |
Applications
| Application | Rhodizonic acid disodium salt indicator for sulfate titration. CAS 523-21-7, molar mass 214.04 g/mol. |
Physicochemical Information
| Melting Point | >300 °C |
| Bulk density | 620 kg/m3 |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| Assay (perchloric acid titration) | ≥ 98.5 % |
| Identity (UV/VIS-Spectrum) | passes test |
| Absorption maximum λmax. (Hydrochloric acid 0.1 mol/l) | 317 - 320 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.02 g/l; hydrochloric acid 0.1 mol/l) | ≥ 540 |
| Suitability as indicator (for sulfate titration) | passes test |
