Many customers will have doubts about the production and marketing of aluminum sulphate equipment. What is the purity of the product purchased? Is the label on the package accurate? This series of problems have a lot to do with the production equipment of nonferrous aluminum sulfate. However, during the long-term transportation and storage of chemicals, there may be slight qualitative changes affecting their composition. See the introduction of nonferrous aluminum sulfate equipment manufacturers for details.

Take a small aluminum sulphate equipment and divide it into two parts: 1. Take a sample. For tube 1, add enough NaOH (AQ) drop by drop. If white precipitate appears in the solution and the precipitate disappears, it indicates that Al3 + 2 exists. In addition, a small amount of BA (NO3) 2 (AQ) was dropped into tube 2, white precipitate appeared, and then HNO3 (AQ) was dropped, and the precipitate was insoluble. According to the manufacturer of aluminum sulfate without iron, SO42 + was found. With the increase of NaOH content, the precipitation gradually disappeared and NaAlO2 dissolved in water was formed, indicating that Al ions occupied the original solution. Adding BaCl2 solution acidified by dilute hydrochloric acid (dilute hydrochloric acid acidification is to aluminum sulphate equipment of silver ions, sulfite ions, carbonate ions, etc.), if white precipitate insoluble in dilute nitric acid is produced, it is proved that sulfate ion exists.