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77-09-8
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77-09-8
| Phenolphthalein Basic information | |
| Product Name: | Phenolphthalein |
| CAS: | 77-09-8 |
| MF: | C20H14O4 |
| MW: | 318.32 |
| EINECS: | 201-004-7 |
| Mol File: | 77-09-8.mol |
| Phenolphthalein Chemical Properties | |
| Melting point | 261-263 °C (lit.) |
| Boiling point | 417.49°C (rough estimate) |
| density | 1.27 g/cm3 at 32 °C |
| refractive index | 1.5400 (estimate) |
| Fp | 24 °C |
| storage temp. | no restrictions. |
| solubility | Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane. |
| Colour Index | 764 |
| form | Solid |
| pka | 9.4(at 25℃) |
| color | White to yellow-white |
| PH Range | 8.0(colorless)-10(Red) |
| PH | 7.8～10.0 |
| Odor | Odorless |
| Water Solubility | <0.1 g/100 mL |
| λmax | 552nm, 553nm, 374nm, 205nm, 229nm, 276nm |
| Merck | 147,243 |
| BRN | 284423 |
| Stability: | Stable. Incompatible with strong oxidizing agents, alkalies. |
| Major Application | Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases |
| CAS DataBase Reference | 77-09-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenolphthalein(77-09-8) |
| IARC | 2B (Vol. 76) 2000 |
| EPA Substance Registry System | 3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8) |
| 项 目 | 标 准 | 结 果 |
| Items | Standard | Results |
| PH 变色域 | 8.0（无色）--10.0（红紫色） | 8.0（无色）--10.0（红紫色） |
| 质量系收系数 a（L/cm·g） | 68.0---75.0 | 68.6 |
| 乙醇溶解试验 | 合格 | 合格 |
| 灼烧残渣（以硫酸盐计） ≤ | 0.05 | 0.025 |
| 干燥失重 ≤ | 1 | 0.1 |
| Phenolphthalein Basic information | |
| Product Name: | Phenolphthalein |
| CAS: | 77-09-8 |
| MF: | C20H14O4 |
| MW: | 318.32 |
| EINECS: | 201-004-7 |
| Mol File: | 77-09-8.mol |
| Phenolphthalein Chemical Properties | |
| Melting point | 261-263 °C (lit.) |
| Boiling point | 417.49°C (rough estimate) |
| density | 1.27 g/cm3 at 32 °C |
| refractive index | 1.5400 (estimate) |
| Fp | 24 °C |
| storage temp. | no restrictions. |
| solubility | Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane. |
| Colour Index | 764 |
| form | Solid |
| pka | 9.4(at 25℃) |
| color | White to yellow-white |
| PH Range | 8.0(colorless)-10(Red) |
| PH | 7.8～10.0 |
| Odor | Odorless |
| Water Solubility | <0.1 g/100 mL |
| λmax | 552nm, 553nm, 374nm, 205nm, 229nm, 276nm |
| Merck | 147,243 |
| BRN | 284423 |
| Stability: | Stable. Incompatible with strong oxidizing agents, alkalies. |
| Major Application | Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases |
| CAS DataBase Reference | 77-09-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenolphthalein(77-09-8) |
| IARC | 2B (Vol. 76) 2000 |
| EPA Substance Registry System | 3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8) |
| 项 目 | 标 准 | 结 果 |
| Items | Standard | Results |
| PH 变色域 | 8.0（无色）--10.0（红紫色） | 8.0（无色）--10.0（红紫色） |
| 质量系收系数 a（L/cm·g） | 68.0---75.0 | 68.6 |
| 乙醇溶解试验 | 合格 | 合格 |
| 灼烧残渣（以硫酸盐计） ≤ | 0.05 | 0.025 |
| 干燥失重 ≤ | 1 | 0.1 |
