Congo Red Indicator Paper

The ERОSE Congo Red Indicator Paper from GLASS AGENCIES is a laboratory testing paper used as an acid-base indicator for identifying acidic and alkaline conditions in suitable solutions. It is commonly used in chemistry laboratories, educational institutions, research centres, and analytical testing facilities for qualitative chemical experiments. Congo Red is a pH-sensitive dye that changes colour according to the acidity or alkalinity of the tested solution. It generally appears blue-violet under acidic conditions and red under alkaline conditions, making it useful for observing changes in the chemical nature of a sample. Congo Red Indicator Paper provides a convenient method for preliminary testing and educational demonstrations involving acid-base reactions. It can be used in chemistry practicals, laboratory experiments, and suitable testing procedures where a visible indicator response is required. The paper helps students understand the behaviour of chemical indicators and the effect of pH on colour changes. It is important to note that Congo Red has a transition range of approximately pH 3.0 to 5.2, so it is not a universal pH indicator and should be selected according to the testing requirements. Users should follow the recommended testing procedure and handle the indicator paper according to appropriate laboratory safety guidelines. GLASS AGENCIES supplies laboratory glassware, scientific instruments, indicator papers, and educational laboratory products under the EROSE brand. The EROSE Congo Red Indicator Paper is a useful addition to chemistry laboratories, schools, colleges, and research facilities carrying out qualitative chemical testing. For product specifications, packaging details, and availability, contact GLASS AGENCIES.