| send us an inquiry |
LC4216 Naphthol green B (C.I. 10020)indicator |
| Order number | Packaging | Quantity | Price € |
| AC31216 | Glass bottle | 25 g |
22.95 |
| Product information | |
| Synonyms | Green acid 1 |
| Hill Formula | C30H15FeN3Na3O15S3 |
| HS Code | 3204 19 00 |
| EC number | 243-010-2 |
| Molar mass | 878.47 g/mol |
| CAS number | 19381-50-1 |
| Chemical and physical data | |
| Solubility | 160 g/l (20 °C) |
| Molar mass | 878.47 g/mol |
| Bulk density | 620 kg/m3 |
| pH value | 9.3 (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. |
| Specifications | |
| Identity (UV/VIS-Spectrum) | passes test |
| Absorption maximum (water) | 710 – 720 nm |
| Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.005 %; water; calc. on dried substance) | ≥ 100 |
| Loss on drying (105 °C) | ≤ 10 % |
 |