Polyferric sulfate is a common water purification agent, so the water purification effect of polyferric sulfate is closely related to the product quality. So what factors are related to the product quality of PFS?

The color of PFS can be seen from both the color of PFS solid and the color of PFS dissolved. The solid PFS is yellow brown powder, and the color of the dissolved PFS is generally a transparent liquid with reddish color. But these factors can only simply judge the product quality of PFS.

The iron content of PFS is an important factor to determine the product quality of PFS. However, this data can only be obtained through relatively professional laboratory testing. Generally speaking, when the iron content of PFS is between 9% and 12%, the product quality of PFS is not very good. Only when the iron content is above 15%, the quality of PFS is high.

The basicity of PFS is also an important index of PFS product quality. Generally speaking, the higher the basicity of PFS, the better the coagulation effect. However, with the increase of basicity, the effect of PFS in treating some pollutants will be reduced. Therefore, the basicity of PFS is mostly between 8 and 16.