Home > News > Content

Industrial Aluminum Sulfate Is Not Easy To Weather And Lose Crystal Water

Oct 20, 2017

Industrial Aluminum Sulfate is not easy to weather and lose crystal water, relatively stable, heating will lose water, high temperature will be decomposed into alumina and sulfur oxides. Heated to 770 ℃ began to break down into alumina, sulfur trioxide, sulfur dioxide and water vapor. Soluble in water, acid and alkali, insoluble in ethanol. The aqueous solution is acidic. Hydrolysis produces aluminum hydroxide. The aqueous solution can boil for a long time to produce basic Industrial Aluminum Sulfate. Non-toxic, dust can stimulate the eyes. The hydrolyzate has a base salt and a colloidal precipitate of aluminum hydroxide. Easily with potassium, sodium, ammonium salt to form alum, such as potassium aluminum potassium kAl (SO4) 3 · 12H2O. Heat hydrate, the violent expansion, and become sponge-like, heated to red hot, the decomposition of sulfur trioxide and alumina.

Industrial Aluminum Sulfate is easy to dissolve, the solution is acidic, corrosive. Bauxite contained impurities should not be too much, especially the iron salt can not be too high, otherwise it will be rosin gum, dye chemical effect, affecting the color of paper. About 50% of the total output of Industrial Aluminum Sulfate is the first major use for paper.

Industrial Aluminum Sulfate closed operation, local exhaust. Operators must be specially trained to strictly observe the operating procedures. It is recommended that the operator wear a self-priming filter dust mask, wear chemical safety glasses, wear toxics, and wear rubber gloves. Avoid dust. Avoid contact with oxidant. Handling light loading and unloading, to prevent damage to the packaging. Equipped with a leak emergency treatment equipment. Empty containers may be harmful residues.

Industrial Aluminum Sulfate is usually used as a flocculant for the purification of drinking water and sewage treatment equipment, but also for the paper industry. Industrial Aluminum Sulfate is also a very effective molluscicide, can kill the Spanish slugs. Industrial Aluminum Sulfate is used for water purification and is used as a medium in textile printing and dyeing. In the purification of water, it makes the impurities condensate, easier to precipitate and filter.