Appearance：Colorless or yellow resin solid. The solution is colorless or tan transparent liquid. Dissolving in water, corrosive.

Use：It can be used in the purification drink water and special water treatment, industrial sewage disposal, precise manufacture, medicine, paper-making rubber, leather, petroleum, chemistry and dyeing.

Chemical component：

Alumina/%：≥30

Basicity% 45—60 3

PH value 3.5—5.0 4

Sulfate/%：≤3.5 5

Iron/%：≤0.01 6

Acid insoluble/%：≤0.2