Chemical analysis often relies on the ability to detect and quantify substances through observable reactions, frequently involving color changes. Chromogenic reagents are a class of compounds that produce visible colors when they react with specific analytes, making them indispensable tools in analytical chemistry. N,N-Diethyl-p-phenylenediamine Sulfate, commonly known as DPD Sulfate, is a prime example of such a reagent, celebrated for its utility in various analytical applications, most notably in the determination of chlorine.

The principal application of DPD Sulfate in chemical analysis is its role as a chromogenic reagent for the spectrophotometric determination of chlorine. When DPD Sulfate comes into contact with free chlorine in a sample, it undergoes a rapid oxidation reaction, forming a distinct pink or magenta-colored complex. The intensity of this color is directly proportional to the concentration of chlorine present, allowing for precise quantitative measurements using a spectrophotometer. This reaction is the basis for the widely used DPD method for measuring residual chlorine in drinking water, swimming pools, and wastewater. The reliability of this method makes it a standard in water quality testing worldwide.

Beyond chlorine analysis, the chromogenic properties of DPD Sulfate lend themselves to the analysis of other compounds, including aromatic amino groups and phenolic compounds. This broad applicability makes it a valuable reagent for researchers and analysts across different disciplines. The consistency in color development and stability of the resulting complex are key features that underscore its importance in analytical chemistry. As a premier supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. ensures that our DPD Sulfate meets the highest purity standards required for accurate chemical analysis.

The versatility of N,N-Diethyl-p-phenylenediamine Sulfate is further highlighted by its use as a color photographic developer, demonstrating its capacity to participate in complex redox reactions that create visual images. This dual utility solidifies its position as a key chemical intermediate in both scientific and industrial sectors.

For laboratories and industries that depend on accurate and repeatable analytical results, sourcing high-quality reagents is non-negotiable. NINGBO INNO PHARMCHEM CO.,LTD. is committed to being a trusted manufacturer and supplier of N,N-Diethyl-p-phenylenediamine Sulfate, supporting your critical analytical needs. Partner with us to access a reagent that is fundamental to effective chlorine determination and broader chemical analysis.