What materials should be used for storage tanks for dilute sulfuric acid and hydrogen peroxide respectively?
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What materials should be used for storage tanks and pipes for dilute sulfuric acid and hydrogen peroxide, given the different concentrations – around 10%, 20%, 30% and so on?
A steel-lined F4 will do. For hydrogen peroxide, use PE-lined steel
Hydrogen peroxide has strong oxidizing properties and a certain degree of corrosiveness; moreover, it is unstable and decomposes into water and oxygen. Therefore, hydrogen peroxide should be stored in plastic tanks with stable properties and a certain degree of ductility. For dilute sulfuric acid, all-plastic storage tanks can be used; for very high-concentration sulfuric acid, Fuda Containers, a manufacturer of polyethylene storage tanks, recommends the use of steel-lined plastic storage tanks.
Plastic product storage tanks -------------- Pipes are lined with PE made of steel
For dilute sulfuric acid, either steel-lined PTFE or PVC+FRP can be used; however, it’s difficult to implement a steel-lined PTFE solution for storage tanks, while there are no issues with pipes； For hydrogen peroxide, 316L stainless steel is recommended, as it provides the highest level of safety.
For dilute sulfuric acid, we use rubber-lined steel; for hydrogen peroxide, we use fiberglass reinforced plastic. That’s how we proceed in both cases
I happen to have both of these materials on hand, and the storage tanks I use are all those with a steel lining and PE coating
If the temperature isn’t high, go with steel-lined PTFE; this material is kind of versatile.