CALCON 50grm
metal indicator
Manufacturer: Merck
Catalog ID: 104594.0050
Stock: In Stock
Description
| Catalogue Number | 104594 |
| Synonyms | 2-Hydroxy-1-(2-hydroxy-1-naphthylazo)naphthalene-4-sulfonic acid sodium salt |
Product Information
| CAS number | 2538-85-4 |
| EC number | 219-810-2 |
| Hill Formula | C₂₀H₁₃N₂NaO₅S |
| Molar Mass | 416.39 g/mol |
| HS Code | 2927 00 00 |
Physicochemical Information
| pH value | 9.4 (10 g/l, H₂O, 25 °C) |
| Bulk density | 530 kg/m3 |
| Solubility | 20 g/l |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Identity (UV/VIS-Spectrum) | passes test |
| Absorption maximum λmax. (buffer pH 12.2) | 634 - 640 nm |
| Spec. Absorptivity A 1%/1cm (λmax; 0.015 g/l; buffer pH 12.2; calculated on dried substance) | 250 - 400 |
| Loss on drying (110 °C) | ≤ 10 % |
| Suitability as indicator (for metal titration) | passes test |
