Phenolphthalein/ CAS： 77-09-8
Short Description:
Product name: Phenolphthalein
Type:ZA-N
CAS: 77-09-8
MF: C20H14O4
MW: 318.32
STRUCTURE:
specification
| Item | Specification
|
| Appearance | Colorless or almost colorless |
| content | 98.0%-101.0% |
| Chloride | Not more concentrated than 0.01% of the reference solution |
| Sulfate | Not more concentrated than 0.02% of the control solution |
| Fluorescein mother substance | Not more concentrated than 0.1% of the reference solution |
| sensitivity | pink |
| Loss on drying | Not more than 1.0% |
| Ignition residue | Not more than 1.0% |
| Heavy metal | Shall not exceed ten parts per million |
Usage
The main uses of phenolphthalein: 1. Pharmaceutical industry as a raw material for medicine: It is suitable for habitual and stubborn constipation and is available in various dosage forms such as tablets and suppositories. 2. For organic synthesis: It is mainly used for the synthesis of plastics, especially for the synthesis of diazazone polyaryletherketone polymers. These polymers have excellent heat resistance, water resistance, chemical corrosion resistance, heat aging resistance and good processability and formability. Fibers, coatings and composite materials made from it were soon widely applied in fields such as electronics and electrical appliances, mechanical equipment, transportation, aerospace, atomic energy engineering and military. 3. It is used as an acid-base indicator, an indicator for non-aqueous solution titration, and a reagent for chromatographic analysis.
This product is a commonly used acid index agent, with a color change range of pH8.2 (colorless) -10.0 (red). Phenolphthalein is also a kind of medicine. As a laxative, it acts on the colon and is used to treat constipation.
It is used as an acid-base indicator and a stimulant laxative to treat constipation
Acid-base indicators, non-aqueous solution titration indicators, chromatographic analysis reagents.
Packaging and Shipping
25KG/Drum or as customer requirements.
Belongs to common goods and can deliver by ocean and air
Keep and storage
Shelf life:24 month from date of manufacture in original unopened packaging stored in a cool dry place out of direct sunlight, water.
Ventilated warehouse, Low temperature drying, Separated from oxidants, acids.
