Aluminum sulfate 硫酸铝

     Aluminum sulfate is an inorganic substance with a chemical formula of Al2(SO4)3, a molecular weight of 342.15, and a white crystalline powder).

In the paper industry, it is used as a precipitation agent for rosin gum, wax emulsion and other rubber materials, as a flocculant in water treatment, as a retention agent for foam fire extinguishers, as a raw material for the manufacture of alum and aluminum white, as a raw material for petroleum decolorization, deodorant, and pharmaceuticals. Raw materials, etc., can also manufacture artificial gems and high-grade ammonium alum.

1. It is used as a paper sizing agent in the paper industry to enhance the water resistance and impermeability of paper;

2. After dissolving in water, it can make the fine particles and natural colloidal particles in the water agglomerate into large flocs, which can be removed from the water, so it is used as a coagulant for water supply and wastewater;

3. It is used as a purifying agent for turbid water, and also as a precipitating agent, color fixing agent, filler, etc. Used as an antiperspirant cosmetic raw material (astringent) in cosmetics;

4. In the fire protection industry, it is used as a foam fire extinguishing agent with baking soda and foaming agent;

5. Analytical reagents, mordants, tanning agents, oil decolorizing agents, wood preservatives;

6. Stabilizers for albumin pasteurization (including liquid or frozen whole eggs, egg whites or egg yolks);

7. It can be used as raw material for the manufacture of artificial gemstones, high-grade ammonium alum, and other aluminates;

8. In the fuel industry, it is used as a precipitating agent in the production of chrome yellow and lake dyes, and also acts as a color fixing and filler.

9. It is used as an effective cross-linking agent for animal glue and can improve the viscosity of animal glue. It is also used as a curing agent for urea-formaldehyde adhesives. The curing speed of 20% aqueous solution is faster.