1,8-Dihydroxy-2-Naphthalene-3,6
1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt GR for analysis (reagent for fluoride, zirconium, thorium). CAS 23647-14-5, pH 6.0 (10 g/l, H₂O, 22 °C).
Manufacturer: Merck
Catalog ID: 107998.0025
Stock: In Stock
Description
| Catalogue Number | 107998 |
| Synonyms | SPADNS |
Product Information
| CAS number | 23647-14-5 |
| EC number | 245-803-9 |
| Hill Formula | C₁₆H₉N₂Na₃O₁₁S₃ |
| Molar Mass | 570.4 g/mol |
| HS Code | 2927 00 00 |
Applications
| Application | 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt GR for analysis (reagent for fluoride, zirconium, thorium). CAS 23647-14-5, pH 6.0 (10 g/l, H₂O, 22 °C). |
Physicochemical Information
| pH value | 6.0 (10 g/l, H₂O, 22 °C) |
| Bulk density | 810 kg/m3 |
| Solubility | 220 g/l |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| Identity (UV/VIS-Spectrum) | passes test |
| Color change with zirconium | passes test pink - violet |
| Absorption maximum λmax. (buffer pH 7.0) | 505 - 510 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.02 g/l; buffer pH 7.0; calc. on dried substance) | 400 - 560 |
| Loss on Drying (105°C) | ≤ 10 % |
