Phenolphthalein (CAS 77-09-8) is more than just a color-changing chemical; it's a staple in analytical chemistry laboratories worldwide. Its characteristic as a white powder, practically insoluble in water but soluble in ethanol, highlights its versatility. The high phenolphthalein assay of 98.0%-101.0% ensures its efficacy as a precise indicator. This compound's performance is predictable, making it a cornerstone for accurate chemical measurements.

The primary utility of phenolphthalein lies in its function as a pH indicator. It undergoes a dramatic color change from colorless in acidic conditions to a distinct pink in alkaline solutions, typically at pH levels above 8.2. This attribute makes it indispensable for acid-base titrations, where identifying the equivalence point is critical. Understanding the phenolphthalein chemical properties allows chemists to select the appropriate indicator for specific reactions. For example, the phenolphthalein melting point of approximately 260℃ suggests good thermal stability for standard laboratory procedures.

When considering where to buy phenolphthalein, it's important to seek suppliers who guarantee product purity and consistent performance. Reliable phenolphthalein buy options often come with detailed technical specifications, such as the phenolphthalein assay. The phenolphthalein solubility in alcohol is also a key factor for preparing indicator solutions. Laboratories often look for competitive phenolphthalein price points without compromising on quality. The common uses of phenolphthalein are predominantly in educational institutions and research facilities for teaching and conducting precise titrations.

At NINGBO INNO PHARMCHEM CO.,LTD., we are dedicated to providing the scientific community with reliable chemical solutions. Our phenolphthalein is sourced and processed to meet the highest industry standards, ensuring consistent results for your experiments. We understand the critical role of quality reagents in research and development. Trust NINGBO INNO PHARMCHEM CO.,LTD. for your laboratory chemical needs, including high-purity phenolphthalein that supports accurate and efficient scientific inquiry.