What material should be used for 0.01% hydrochloric acid?
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What material should be used for 0.01% hydrochloric acid?
0.01% hydrochloric acid is very dilute, resulting in low corrosivity to materials. Materials such as polyvinyl chloride (PVC), polypropylene (PP), or stainless steel can usually be used. These materials exhibit excellent corrosion resistance to dilute hydrochloric acid. .
Depending on the actual medium being used, it is more economical to employ a coating method at this time.
If there is only hydrochloric acid and no other components, the pH value of such a concentration of hydrochloric acid is around 2.5 – 2.6; 316L stainless steel can be used, but the temperature still cannot be too high. If long-term operation under certain temperature conditions is required, it is recommended to use materials with a Teflon coating or a powder-coated finish; of course, PVC or other engineering plastics such as nylon pipes can also be used.
Generally, synthetic materials such as PE are good materials for hydrochloric acid containers and pipes.
At pH 2.4, stainless steel is by no means the best choice; plastic is better