VWR Phenolphthalein, AnalaR NORMAPUR® Reag. Ph. Eur., ACS indicator

Specifications:

VWR Phenolphthalein, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. is a high-purity pH indicator commonly used in acid-base titrations and chemical analysis. With its characteristic color change from colorless (acidic) to violet-red (basic), phenolphthalein is an essential reagent for determining pH in aqueous solutions. This ACS-certified and Ph.Eur. compliant product ensures accuracy and reliability in laboratory testing and pharmaceutical formulations.

Phenolphthalein's high absorptivity in the visible spectrum and well-defined pH range (8-10) make it ideal for applications where precise pH determination is required. It is commonly used in quantitative analysis of acidic and basic solutions.

Key Features:

1. High Purity:
   • The product has an assay of ≥99%, ensuring accurate results in chemical reactions and titration processes.
2. Efficient pH Indicator:
   • Phenolphthalein exhibits a clear color change from colorless to violet-red between pH 8 to 10, making it an ideal indicator for acid-base titrations.
3. Versatile Applications:
   • Used in a variety of biochemical applications, analytical chemistry, and pharmaceutical processes, particularly in quantitative titrations.
4. High Absorptivity:
   • Absorptivity values between 500 - 600 (A1%/1 cm; λ max at pH 9.8) allow for precise absorption measurements in spectrophotometry.
5. Reliable Quality:
   • Manufactured to Ph.Eur. and ACS standards, ensuring reliable and reproducible results in high-precision applications.
6. Low Loss on Drying:
   • With a loss on drying of ≤1%, the phenolphthalein is stable and will not lose its properties over time during storage.

Applications:

1. Acid-Base Titrations:
   • Phenolphthalein is widely used in acid-base titrations to determine the endpoint of reactions, especially for weak acid-strong base titrations.
2. pH Indicator:
   • Employed in laboratory procedures to monitor and measure pH in aqueous solutions, ensuring the proper range is maintained in biochemical assays.
3. Pharmaceuticals:
   • Essential in the pharmaceutical industry for pH testing, drug formulation, and quality control of drug products.
4. Biochemical Research:
   • Commonly used in biochemical experiments for pH measurements, enzyme assays, and sample analysis.
5. Environmental Testing:
   • Used for monitoring pH levels in water and soil samples, ensuring compliance with environmental regulations.

Packaging Options:

Storage:

• Store at ambient temperature in a cool, dry place to maintain product stability.

VWR Phenolphthalein, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. is a high-purity pH indicator ideal for titration, pH measurement, and analytical chemistry applications. Its reliable quality, minimal impurities, and easy-to-read color transition make it an essential reagent for biochemical research, pharmaceutical applications, and laboratory testing.