Thymolphthalein Indicator AR
5',5''-Diisopropyl-2',2''-dimethylphenolphthalein
Product Code. |
02701 |
Grade |
AR |
Purity |
CAS No. |
125-20-2 | |
Molecular Formula |
C28H30O4 |
Molecular Weight |
430.55 |
H.S.Code |
2932.20900 |
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 |
Partition coefficient Log Pow octanol / water at 20°C |
7.06 |
Packaging
Specification
| Appearance | White powder |
| Infrared spectrum | Conforms |
| Visual transition interval | from pH 8.8 (Colorless) to pH 10.5 (blue) |
| Absorption maxima | 592 - 596 nm |
Safety Information and Hazard Symbols