Thymolphthalein
- Product NameThymolphthalein
- CAS125-20-2
- CBNumberCB5342154
- MFC28H30O4
- MW430.54
- EINECS204-729-7
- MDL NumberMFCD00005909
- MOL File125-20-2.mol
- MSDS FileSDS
Chemical Properties
| Melting point | 251-253 °C(lit.) |
| Boiling point | 504.79°C (rough estimate) |
| Density | 0.92 g/mL at 25 °C |
| vapor pressure | 0.002Pa at 90℃ |
| refractive index | 1.6400 (estimate) |
| Flash point | 74 °F |
| storage temp. | no restrictions. |
| solubility | ethanol: clarity passes test |
| form | Low Melting Mass |
| pka | 9.70, 10.0(at 25℃) |
| color | White to slightly yellow |
| Specific Gravity | 0.92 |
| PH | 8.6～10.5 |
| PH Range | 9.3(colourless)-10.5(blue) |
| Odor | Mild characteristic odor |
| explosive limit | 3.30-19% |
| Water Solubility | insoluble |
| λmax | 592nm, 396nm, 598nm |
Safety
| Symbol(GHS) |
 
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| Signal word | Danger | |||||||||
| Hazard statements | H225-H313-H333-H371 | |||||||||
| Precautionary statements | P210-P260-P280a-P303+P361+P353-P405-P501a | |||||||||
| Hazard Codes | F,Xn | |||||||||
| Risk Statements | 11-40-10 | |||||||||
| Safety Statements | 7-16-36/37-24/25-22 | |||||||||
| RIDADR | UN 1170 3/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29322980 | |||||||||
| NFPA 704: |
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