Poly ferric sulfate is a kind of high molecular acid iron polymer, with the chemical formula of [Fe2 (OH) n (SO4) 3 -. It has strong corrosiveness and good coagulation performance. It is often used to replace aluminum salt in water treatment. It is soluble in water, alcohol, chloroform, carbon tetrachloride and so on. The solid appearance is yellowish brown small particles, and the liquid appearance is reddish brown viscous liquid. How to preserve PFS? Now let's find out with Zeyuan.

1. PFS is not used as reducing agent and oxidant in wastewater treatment, but can be stored according to the requirements of oxidant in storage. That is to say, it should not coexist with alkali, reducing agent, alcohol and flammable substance. Moreover, it is not allowed to store and transport goods together.

   
   

2. Because it belongs to chemical medicament, it should be stored in cool, dry and well ventilated place, away from fire and heat source. At the same time, the storage area should be equipped with suitable storage materials.

3. Solid polymeric ferric sulfate has no higher requirements for packaging than liquid, and is usually packed in woven bags, which does not directly contact with air. The liquid polyferric sulfate must be stable under acidic conditions, so it is required to use polyvinylic acid, lined with plastic barrels or stainless steel, FRP tanks and tank cars for storage and transportation.

4. The shelf life of this product should not exceed the shelf life. The storage stability period of solid product is 6 months, while that of liquid PFS is 3 months. Therefore, in the purchase or preparation, should not be excessive, especially liquid products, the longer the storage, the more seriously affected the use effect.