Assay: 98%-101%
Appearance: White cyrstalline powder
Capacity: 30 tons per month
Packaging: 25kg/fiber drum
Sample: available
Assay: 98%-101%
Appearance: White cyrstalline powder
Capacity: 30 tons per month
Packaging: 25kg/fiber drum
Sample: available
Phenolphthalein Quick Details
Chemical Name: Phenolphthalein
CAS No.: 77-09-8
Molecular Fomula: C20H14O4
Chemical Structure:
Molecular weight: 318.32
Appearance: A white powder, practically insoluble in water, soluble in alcohol.
Assay: 98.0%-101.0%(C2OHi4O4)
Phenolphthalein Typical Properties
Item | Specifications |
Characteristics | A white or almost white powder, practically insoluble in water, soluble in alcohol. |
Melting Point | It melts at about 260℃ |
Identification | A:Positive B:Positive |
Appearance of solution | The solution is clear and not more intensely coloured than reference solution Y7 |
Related substances | Less than 0.5% |
Heavy metals | Not more than0.001% |
Acidity or alkalinity | Complies |
Chlorides | Not more than 0.01% |
Sulphates | Not more than 0.02% |
Loss on drying | Not more than 0.5% |
Sulphated ash | Not more than 0.1% |
Assay | 98.0%-101.0%(C2OHi4O4) |
Microorganism | TPC<1000cfu/g |
Y and M <100cfu/g | |
E-coli – absent | |
Staphylococcus Aureus-Absent | |
Pseudomonas Aeruginosa-Absent | |
Albicans Saccharomyces-Absent |
Phenolphthalein Usage
(1) This product is a commonly used acid indicator, and the color change range is pH 8.2 (colorless) -10.0 (red). Phenolphthalein is also a drug that acts as a laxative in the colon and is used to treat constipation.
(2) Acid-base indicator, non-aqueous titration indicator, chromatographic reagent.
PhenolphthaleinPackaging and Shipping
Fiber Drum,25kg
PhenolphthaleinStorage
Store in a cool, dry place.