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Specifications:
| Application | Microbiology, Analytical Chemistry, Colorimetric Assay | ||
| Storage Temperature | Ambient | ||
| Product Type | Dye | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | C₂₀H₁₄O₄ |
Specifications:
| Feature | Test Results |
|---|---|
| Assay | 98.0 - 101.0% (calculated on dried substance) |
| Appearance | White/almost white powder |
| Identification A | Passes test |
| Identification B | Passes test |
| Appearance of Solution | Passes test |
| Acidity or Alkalinity | Passes test |
| Related Substances | Passes test |
| Chloride (Cl) | Max. 100 ppm |
| Sulphate (SO₄) | Max. 200 ppm |
| Heavy Metals (as Pb) | Max. 10 ppm |
| Loss on Drying (105°C) | Max. 0.5% |
| Sulphated Ash | Max. 0.1% |
| Residual Solvents | Passes test |
GHS Classification: GHS08 (Health hazard)
VWR Phenolphthalein 98.0-101.0%, Ph. Eur. is a high-purity chemical with 98% to 101% assay, designed for laboratory applications requiring accurate pH indicators. Phenolphthalein is commonly used in acid-base titrations as a pH indicator, transitioning from colorless in acidic conditions to pink in basic conditions. It is also utilized in biochemical assays and the preparation of certain dyes.
This Ph. Eur. certified product is manufactured to the highest standards for use in analytical chemistry and pharmaceutical applications. It is available in a 100 g glass bottle for easy handling and storage, making it an ideal reagent for routine laboratory analysis.
Key Features:
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High Purity:
- Assay of 98.0 - 101.0% ensures consistent and reliable results in titration and analytical chemistry applications.
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Ideal for pH Testing:
- Phenolphthalein is commonly used as a pH indicator in acid-base titrations, changing color in response to pH changes.
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Reliable and Consistent:
- Manufactured to Ph. Eur. standards, this product ensures reliability in applications requiring high purity chemicals for precise results.
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Versatile Applications:
- Used in pharmaceutical research, biochemical analysis, and chemical formulations for precise pH measurement and indicator purposes.
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Minimal Impurities:
- The product meets stringent purity tests, with low levels of chloride, sulphate, and heavy metals, ensuring no interference with sensitive analyses.
Applications:
- Titrations: Phenolphthalein is widely used in acid-base titrations, providing a clear endpoint when transitioning from acidic to basic solutions.
- pH Indicators: Commonly used in laboratories for monitoring pH in a variety of solutions, especially when the transition range of pH 8.3 - 10.5 is required.
- Pharmaceutical Research: Involved in pharmaceutical analysis, particularly for quality control and compound synthesis where precise measurements are required.
- Biochemical and Chemical Synthesis: Used in the synthesis of dyes and as a chemical intermediate in the production of pharmaceutical compounds.
- Laboratory Analysis: Used as a pH indicator in analytical chemistry and environmental testing for accurate results.
Packaging Options:
| Catalog Number | Pack Size | Packaging |
|---|---|---|
| 83544.180 | 100 g | Glass bottle |
Storage:
- Store at ambient temperature in a cool, dry place to maintain product stability.
VWR Phenolphthalein 98.0-101.0%, Ph. Eur. is a high-quality pH indicator and analytical reagent used in a variety of organic chemistry, biochemistry, and pharmaceutical applications. Its high purity, reliability, and Ph. Eur. certification make it an essential tool for accurate and precise acid-base titrations and other laboratory processes.