| Phenolphthalein, GR | |
| Synonyms | 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone |
| Grade | AR / GR |
| Categories | Hematology & histology |
| Appearance (Form) | Powder |
| Appearance (Colour) | White |
| Melting point | 261-263 °C(lit.) |
| Solubility | Acetone: soluble |
| HSN Code | 382200.90 |
| Pack Size | 100 GM | 500 GM | 5 KG | 25 KG |
| Phenolphthalein, Indicator Solution | |
| Synonyms | 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone |
| Categories | Laboratory chemicals,Diagnostic reagents & clinical reagents |
| Appearance (Form) | Liquid |
| Appearance (Colour) | Colourless |
| HSN Code | 38229090 |
| Pack Size | 125 ML | 500 ML | 25 LT |
Phenolphthalein
CAS No: 77-09-8
| Catalouge No | BSCHM-053P |
| Mol. Formula | C20H14O4 |
| Mol. Weight | 318.32 |
| Price | POR |
Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations.
Phenolphthalein, GR - used as a colorimetric pH indicator.
Phenolphthalein, indicator solution - adopts four different states in aqueous solution: Under very strongly acidic conditions, it exists in protonated form, providing an orange coloration. Under strongly acidic conditions, the lactone form is colorless. The singly deprotonated phenolate form (the anion form of phenol) gives the familiar pink color.
- Hazard Codes Xn
- Risk Statements 40
- Safety Statements 36/37
- WGK Germany 3