For any laboratory professional, selecting the right chemical reagents is paramount to ensuring the accuracy and reproducibility of experimental results. Among the essential tools in any chemistry lab is the pH indicator, a substance that undergoes a distinct color change at a specific pH value. This characteristic makes them indispensable for acid-base titrations and various analytical procedures. When considering which pH indicator to purchase, understanding its properties and sourcing it from a reputable manufacturer is crucial.

One such vital indicator is Bromophenol Blue (CAS 115-39-9). Known for its distinctive color transition from yellow in acidic solutions to a deep blue-purple in alkaline conditions, Bromophenol Blue is highly effective within a pH range of 3.0 to 4.6. This specific range makes it particularly useful for titrations involving weak acids and strong bases, or strong acids and weak bases where the equivalence point falls within this pH spectrum. The purity of the indicator, often specified as an assay percentage (e.g., 99%), directly impacts the sharpness and reliability of the color change. Therefore, sourcing Bromophenol Blue from a trusted supplier, particularly a well-established manufacturer in China, can guarantee the quality needed for critical analytical tasks.

When you buy Bromophenol Blue, consider its physical form. It typically appears as a light red powder, which should be stored properly in sealed containers to maintain its efficacy. Factors such as mass absorption coefficient are also important specifications to review, as they relate to the indicator's sensitivity. For procurement managers and research scientists, understanding these technical details ensures they are acquiring the most suitable product for their application. Many suppliers offer samples, allowing you to test the indicator before committing to a bulk purchase. This diligence in selection, coupled with competitive pricing from reliable manufacturers, ultimately supports more accurate and efficient laboratory operations. If you're looking to purchase high-quality Bromophenol Blue, don't hesitate to request a quote from experienced chemical suppliers.