Polyaluminum chloride is abbreviated as PAC.
      The poly aluminum chloride sold on the market is more complex. Because each manufacturer’s production process and raw materials are different, the colors are different. Generally, there are three colors of polyaluminum chloride: white, yellow, and yellowish-brown.
PAC COLOR
  • White poly aluminum chloride
        White PAC is called high-purity iron-free white poly aluminum chloride, or food-grade white poly aluminum chloride, which is the highest quality product compared to other PAC. Its main raw materials are high-quality aluminum hydroxide and hydrochloric acid, and the production process used is the most advanced domestic spray drying method. White PAC is used in papermaking sizing agents, sugar decolorizing and clarifying agents, tanning leather, medicine, cosmetics, precision casting and water treatment, and other fields.
  • Yellow poly aluminum chloride
        The raw materials of yellow polyaluminum chloride are aluminum hydroxide, hydrochloric acid, and calcium aluminate powder, which are mainly used in sewage treatment and drinking water treatment. At present, the yellow PAC is the mainstream product.
  • Tan polyaluminum chloride
       The raw materials of tan polyaluminum chloride are calcium aluminate powder, hydrochloric acid, bauxite and iron powder. The production process adopts the drum drying method, which is generally used for sewage treatment. Because the iron powder is added to it, the color is tan. The more iron powder is added, the darker the color. Known as polyaluminum ferric chloride, it has excellent results in sewage treatment.
Summarize:
       The lighter the color of PAC, the higher the purity;
       Dark color PAC is suitable for sewage treatment, it has good use effect;
       Light color PAC is suitable for environments with high safety requirements, high purity, and low impact.