甲基橙碱度测定滴定终点颜色判断探讨

摘要

As a composite indicator of water, alkalinity is usually measured with titration analysis. Though it is a simple method, color judgment at the end point of titration is essen-tial to measurement result. Experiment was carried out based on theory, to determine the pH value of titration sample reaching end-point color and obtain the color standard for judgment of titration end point, which was applied in everyday inspection analysis, enabling analysis re-sults to effectively guide production.%碱度是一种水的综合性指标，检测方法一般采用滴定分析，其方法虽然简单，但是滴定终点颜色的判断，对其测定结果至关重要。依据理论进行实验，将到达终点颜色的滴定样品测定pH值，得出判断滴定终点的颜色标准，并用于日常的检测分析，使测定结果能有效指导生产。