无水高氯酸镁重量法测定液氯中水含量

摘要

With the chlor-alkali enterprises chlorine drying process improvements, equipment and related downstream products of chlorine water demands increase, most chlor-alkali plant chlorine water content can reach 400 mg / L or less, some plants can reach 50 mg / L or less. Anhydrous magnesium perchlorate is not absorbent desiccant and chlorine reaction, the gas through mag- nesium perchlorate remaining humidity as low as 0.0002rag / L, after absorbing a magnesium perchlorate trihydrate, can be used for chlorine Determination of trace water.%随着氯碱企业氯气干燥工艺的改进，设备和下游涉氯产品对水份要求的提高，，大部分氯碱厂液氯含水量都能达到400mg／L以下，有些厂能达到50mg／L以下。无水高氯酸镁是吸水性较强又不和氯气反应的干燥剂，气体通过高氯酸镁的剩余湿度低至O．0002mg／L，吸水后成为三水过氯酸镁，可用于液氯中微量水分的测定。