| Melting point |
221 °C |
| Fp |
36 °C |
| storage temp. |
Store at RT. |
| solubility |
0.11g/l |
| form |
Solid |
| pka |
Pka1:1.65(at 25℃)(PH=1.2 to 2.8) Pka2:8.9(at 25℃)(PH=8.0 to 9.6) |
| color |
Dark green to dark brown |
| PH Range |
1.2(red)-2.8(yellow) 8(yellow)-9.6(blue) |
| Water Solubility |
Soluble in alcohol and dilute alkali solutions. Insoluble in water. |
| λmax |
594nm, 376nm, 544nm, 430nm |
| Merck |
14,9400 |
| Stability: |
Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents. |
| Major Application |
Display device, semiconductors, sensors, fuel cells, antimisting coating for glass, toys, corrosion inhibitor, multi-level alert system, correction fluid, textiles, falsification-proof security paper, packaging system, measurement of hydrogen ion concentrationin swimming pool water, humidity-indicating agent, diapers, cosmetics, biostatic materials, determine bacteria growth, psychoactive drugs, antidepressant drugs, dental impression material |
| CAS DataBase Reference |
76-61-9(CAS DataBase Reference) |
| NIST Chemistry Reference |
Thymolsulfonephthalein(76-61-9) |
| EPA Substance Registry System |
Phenol, 4,4'-(1,1-dioxido-3H- 2,1-benzoxathiol-3-ylidene) bis[5-methyl-2-(1-methylethyl)- (76-61-9) |
China
