1-Naphtholphthalein Indicator 1 Grm
indicator
Manufacturer: Merck
Catalog ID: 106246.0001
Stock: In Stock
Description
| Catalogue Number | 106246 |
Product Information
| CAS number | 596-01-0 |
| EC number | 209-875-5 |
| Hill Formula | C₂₈H₁₈O₄ |
| Molar Mass | 418.45 g/mol |
| HS Code | 2932 20 90 |
Physicochemical Information
| Melting Point | 253 - 255 °C |
| Bulk density | 350 kg/m3 |
Storage and Shipping Information
| Storage | Store below +30°C. |
Specifications
| Identity (UV/VIS-Spectrum) | passes test |
| Transition range | pH 7.1 - pH 8.3 pinkbrownish - blue |
| Absorption maximum λ 1 (buffer pH 7.1) | 470 - 485 nm |
| Absorption maximum λ 2 (buffer pH 8.3) | 649 - 654 nm |
| Spec. Absorptivity A 1%/1cm (λ1max; 0.01 g/l; buffer pH 7.1; calc. on anhydrous substance) | 100 - 180 |
| Spec. Absorptivity A 1%/1cm (λ2max; 0.01 g/l; buffer pH 8.3; calc. on anhydrous substance) | 360 - 520 |
| Loss on drying (110 °C) | ≤ 5 % |
