Polyacrylamide in the market is basically a solid powder crystal. When it is used, the solid polyacrylamide needs to be dissolved with water. As an aqueous solution of polyacrylamide, it has great viscosity, and the aqueous solution of polyacrylamide is very easy to deteriorate because of its characteristics. Once the aqueous solution of polyacrylamide deteriorates, the effect will decline, When it is serious, it has no effect. So how should we correctly use polyacrylamide aqueous solution?

The aqueous solution of polyacrylamide is exposed to the air. Generally speaking, the storage time of cationic polyacrylamide is very short, and the effect will be used in less than one day, while the anionic polyacrylamide can be stored for nearly a week. So how can we prolong the storage time of polyacrylamide aqueous solution?

When dissolving, we can use distilled water to dissolve. The polyacrylamide aqueous solution made in this way can be preserved for half a month. However, due to the high price of distilled water, it can be used in a small amount of experiments in the laboratory. The cost will be greatly increased if distilled water is used in actual production. We can also increase the concentration of polyacrylamide aqueous solution, which can also prolong the storage time, but the concentration of polyacrylamide aqueous solution generally can not exceed 0.5%, otherwise it is difficult to dissolve. Another method is to add some stabilizer of polyacrylamide aqueous solution, which can be extended to about one month, but also because of the high price, it can not be used.

In the use of polyacrylamide aqueous solution, we generally need to use at that time, and use as many as we can.