PYROGALLOL RED AR
Metal (pM) Indicator
Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
---|---|---|---|---|---|---|---|
SC0778 | AR | 32638-88-3 | C19H12O8S | 400.04 | 2934.9990 | 60 Months |
Packings
1 g |
Physical Properties
Physical state at 20 °C | Solid |
Colour | Dark brown powder |
Melting point/ Freezing point [°C] | >= 300 °C |
Boiling point [°C] | 148 - 150 °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 |
Specifications
Appearance | Green to brown colored powder |
Absorption maxima in pyridine/water | 540 - 546 nm |
Absorptivity (A 1%/1cm; at λmax) | Min 850 |
Loss on drying (at 135°C) | Max 5% |
Residue on ignition (as SO4) | Max 1% |
Safety Information and Hazard Symbols
Symbol | |
Signal Word | |
UN No. | |
IMCO Class No. | |
Packing Group | |
Hazardous Statement | |
Precaution Statement | |
Risk Statement | |
Safety Statement | 22-24/25 |