PYROGALLOL RED AR
| Product Code | B-02233 | BRAND | Bio-Chem |
|---|---|---|---|
| Grade | AR | CAS No | 32638-88-3 |
| Molecular Formula | C19H12O8S | Molecular Weight | 400.04 |
| H.S.Code | 2934.99000 | Shelf Life | 60 Months |
| Purity | 98 % |
Physical Properties
| Physical state at 20 °C | Solid | Colour | Dark Brown Powder |
|---|---|---|---|
| Boiling point [°C] | 148 - 150 °C | Melting point/ Freezing point [°C] | >= 300 °C |
| Initial boiling point [°C] | 148°C | Final boiling point [°C] | 150 °C |
| Density [g/cm3] | 0.988 | Solubility in water [% weight] | Insoluble in water |
Packaging
Specification
| Appearance | Green to brown colored powder |
| Absorption maxima in pyridine/water | 540 – 546 nm |
| Absorptivity (A 1%/1cm; at lmax) | Min 850 |
| Loss on dryig (at 135°C) | Max 5% |
| Residue on ignition (as SO4) | Max 1% |
Safety Information and Hazard Symbols
Symbol: GHS05 , GHS07 ,GHS08
Signal Word: Warning