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ＰＳＡＡ是一种含有铝离子的聚硅酸絮凝剂。本文用２７Ａｌ－ＮＭＲ法和Ａｌ－Ｆｅｒｒｏｎ逐时络合比色法研究了ＰＳＡＡ水溶液中铝的形态分布情况，考察了ＳｉＯ２／Ａｌ３＋摩尔比，温度及稀释作用对铝的形态分布的影响。结果表明，ＰＳＡＡ水溶液中的铝主要是以单核羟铝络合物形式存在，聚硅酸的存在对铝的形态分布影响不大，温度对铝的形态分布无影响，稀释作用对铝的形态分布有一定的影响。
PSAA is a polysilicone flocculant containing aluminum ions. In this paper, the distribution of aluminum in PSAA aqueous solution was investigated by 27Al-NMR method and Al-Ferron timed complexation method. The effects of the molar ratio of SiO2/Al3+, temperature and dilution on the distribution of aluminum were investigated. The results showed that the aluminum in the aqueous PSAA solution was mainly in the form of mononuclear aluminum hydroxy complexes. The presence of polysilicic acid had little effect on the distribution of aluminum. The temperature had no effect on the distribution of the aluminum, and the dilution effect on the morphology of the aluminum. Distribution has a certain influence.