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| LC1566 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt GR for analysis (reagent for fluoride, zirconium, thorium) |
| Order number | Packaging | Quantity | Price € |
| AC28566 | Glass bottle | 25 g |
62.55 |
| Product information | |
| Synonyms | SPADNS |
| Hill Formula | C16H9N2Na3O11S3 |
| HS Code | 2927 00 00 |
| EC number | 245-803-9 |
| Molar mass | 570.4 g/mol |
| CAS number | 23647-14-5 |
| Chemical and physical data | |
| Solubility | 220 g/l (22 °C) |
| Melting point | |
| Molar mass | 570.4 g/mol |
| Bulk density | 810 kg/m3 |
| pH value | 6.0 (10 g/l, H2O, 22 °C) |
| Safety information | |
| RTECS | |
| 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. |
| Specifications | |
| Identity (UV/VIS-Spectrum) | passes test |
| Color change with zirconium | conforms pink – violet |
| Absorption maximum λ max (buffer pH 7.0) | 505 – 510 nm |
| Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.02 g/l; buffer pH 7.0; calc. on dried substance) | 400 – 560 |
| Loss on drying (105 °C) | ≤ 10 % |
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Hazard Symbol