The difference between aluminum sulfate and aluminum dihydrogen phosphate in refractory materials

The difference between aluminum sulfate and aluminum dihydrogen phosphate in refractory materials

Aluminum sulfate (chemical formula Al2(SO4)3, formula 342.15)

White powder. Dissolved in water. Hydrolysis occurs to make the solution acidic. Triclinic system. Decomposed into aluminum oxide at 1040 ° C. Sulfur trioxide, sulfur dioxide.

The first major use of aluminium sulphate, which accounts for about 50% of total production, is for papermaking. The second largest use is flocculant in drinking water, industrial water and industrial wastewater treatment, accounting for about 40% of total aluminum sulphate production. When aluminum sulfate is added to such water, it can form a colloidal aluminum hydroxide flake which can adsorb and precipitate bacteria, colloids and other suspended materials, and can be used in drinking water treatment to control the color and taste of water.

Aluminum dihydrogen phosphate Molecular formula: AL(H2PO4)3

A colorless, odorless, extremely viscous liquid or white powder that is readily soluble in water. Used as a binder for refractory materials, mainly used in the electrical industry, high temperature furnaces, heat treatment resistance furnaces and electrical insulation. Also used in petroleum, chemical, shipbuilding and space technology. It can also be used as an inorganic coating in combination with an organic coating.

In the refractory material, aluminum sulfate and aluminum dihydrogen phosphate are used.

The aluminum dihydrogen phosphate has a faster melting rate than the aluminum sulfate, and the water is formed. Moreover, the construction is convenient, convenient and quantitative, and can be directly used without processing.