Congo Red Indicator 25 Gm
indicator Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 101340.0025
Stock: In Stock
Description
| Catalogue Number | 101340 |
Product Information
| CAS number | 573-58-0 |
| EC index number | 611-027-00-8 |
| EC number | 209-358-4 |
| Grade | Reag. Ph Eur |
| Hill Formula | C₃₂H₂₂N₆Na₂O₆S₂ |
| Molar Mass | 696.68 g/mol |
| HS Code | 3204 14 00 |
Physicochemical Information
| Melting Point | >360 °C |
| pH value | 6.7 (10 g/l, H₂O, 20 °C) |
| Vapor pressure | <1 Pa |
| Bulk density | 600 - 700 kg/m3 |
| Solubility | 25 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 143 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Appearance | Red-brown to brownishred powder, eventually with granular parts. |
| Appearance of solution (1.0 gr/l; water) | Almost clear to slightly turbid, red |
| Transition range | pH 3.0 - pH 5.2 violet - orange-red |
| Loss on drying (110 °C) | ≤ 5 % |
| Sensitivity test | passes test |
