THYMOLPHTHALEIN
THYMOLPHTHALEIN
| Article No. | 554603 |
| Grade | ACS |
| Purity | – |
| CAS No. | 125-20-2 |
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.55 |
| H.S. Code | 2932.2090 |
| Shelf Life | 60 Months |
Physical properties
| Physical State at 20°C | Solid |
| Colour | White powder |
| Melting Point/ Freezing Point [°C] | 251 – 253 °C |
| Solubility in Water [% weight] | Insoluble in water |
Specifications
| Appearance | White to almost white powder, eventually slightly yellowish. |
| Solubility | Insoluble in water |
| Absorption maximum
λ max (buffer pH 10.5) |
592-596 nm |
| Absorptivity A 1%/1cm (λmax: 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance) | 800-900 |
| Transition range | pH 9.0-pH 10.5 colourless-blue |
| Packings | 10 gm -25 gm |
