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1锅水“酚酞碱度”的意义GB/T1576—2008表1中的酚酞碱度是采用“中和法”进行碱度测定,用酚酞作指示剂,其滴定终点pH值等于8.3时的碱度。其意义在于,通过对酚酞碱度的测定,并与锅水全碱度的数据一同分析,可以判断测定的试样中是否有OH~-离子存在,是否真正意义上的锅水碱度;并且还可以计算出锅水碱度中的主要组分的量以及锅水pH值。进而对试样的代表性,锅水碱度的合理性能有一个准确的判断。防止或减轻因锅水质量不良产生对锅炉危害的发生。2锅水碱度的主要组分及其组分间的量关系
1 pot water “phenolphthalein alkalinity ” significance GB / T1576-2008 Table 1 phenolphthalein alkalinity is determined by “neutralization method ” for alkalinity, phenolphthalein as an indicator, the titration end point pH equal to 8.3 when the alkalinity. The significance is that by determining the basicity of phenolphthalein and analyzing the data of the total alkalinity of the pot water, it is possible to determine whether there is an OH ~ - ion in the tested sample and whether pot alkalinity is truly; and It is also possible to calculate the amount of the main component of the pot water and the pot water pH. Furthermore, the representativeness of the sample, the reasonable performance of pot water alkalinity have an accurate judgment. Prevent or reduce the boiler water quality due to poor quality of the occurrence of hazards. 2 pot water alkalinity of the main components and the relationship between the amount of components