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LC1377 Chromotropic acid disodium salt dihydrateGR for analysis ACS,Reag. Ph Eur |
| Order number | Packaging | Quantity | Price € |
| AC28377 | Glass bottle | 25 g | 21.15 |
| Product information | |
| Grade | ACS,Reag. Ph Eur |
| Synonyms | 4,5-Dihydroxy-2,7-naphthalene disulfonic acid sodium salt |
| Hill Formula | C10H6Na2O8S2 * 2 H2O |
| HS Code | 2908 99 10 |
| EC number | 204-972-9 |
| Molar mass | 400.30 g/mol |
| CAS number | 5808-22-0 |
| Chemical and physical data | |
| Solubility | 170 g/l (20 °C) |
| Melting point | >300 °C |
| Molar mass | 400.30 g/mol |
| Bulk density | 780 kg/m3 |
| pH value | 3.6 (10 g/l, H2O, 20 °C) |
| Safety information | |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 3 highly water endangering |
| Disposal | 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. |
| Transport information | |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Specifications | |
| Appearance | Greyish white to brownish white powder. |
| Assay (acidimetric, calc. on anhydrous substance) | ≥ 98.5 % |
| Identity (IR-spectrum) | passes test |
| Appearance of solution (5 %; water) | passes test |
| Water (according to Karl Fischer) | 8.5 – 9.5 % |
| Sensitivity – of formaldehyde |
passes test |
| – of nitrate | passes test |
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