Calcon
C.I.No.15705
Eriochrome Blue Black R, Solochrome Dark Blue
Product Code. |
00666 |
Grade |
|
Purity |
CAS No. |
2538-85-4 | |
Molecular Formula |
C20H13N2NaO5S |
Molecular Weight |
416.39 |
H.S.Code |
2927.00900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Blackish brown |
Odour |
Odorless |
| Solubility in water [% weight] |
Moderate (1-10%) |
Packaging
Specification
| Appearance | Dark blackish brown powder |
| Identity (UV/VIS spectrum) | Passes test |
| Absorption maxima ?max. (buffer pH 12.2) | 634 - 640 nm |
| Specific absorptivity A1%,1cm (?max;0.0015%;buffer pH 12.2, calculated on dried substance) | 250-500 |
| Loss on drying (at 110°C) | Max 10.0% |
| Suitability (as indicator for metal titration) | Passes test |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338