The corrosiveness of hydrochloric acid is very large and increases with the increase of concentration temperature.Therefore, it is important to choose a good material for hydrochloric acid storage tank.Generally, non-metals have good corrosion resistance to them, and plastic is ideal when the use temperature is not too high.Plastics generally use polyvinyl chloride (PVC) , polyethylene (PE) , polytetrafluoroethylene (PTFE) , polypropylene (PP), polyolefin (PO), engineering plastics (ABS) and so on.
Among them, the temperature resistance and aging resistance of polytetrafluoroethylene (PTFE) are better, and the aging resistance of polyethylene (PE) is also good.The processing property of plastic storage tank is polyethylene (PE), which can be rolled and molded in one body, and the service life is higher than that of other plastic storage tanks.Other plastics can only be welded forming, polytetrafluoroethylene (PTFE) can not be welded forming can only use pressure melting, die casting and other technologies.It is recommended that rotomized polyethylene (PE) storage tank (divided into all-plastic storage tank and steel-plastic composite storage tank) is ideal for the storage of hydrochloric acid at normal temperature and pressure.Rotomized polyethylene (PE) tanks can be used to hold various concentrations of industrial and reagent grade hydrochloric acid.Especially suitable for the storage of reagent grade hydrochloric acid.Fiberglass tanks are also common containers for the storage of hydrochloric acid, but they are only suitable for the storage of general industrial grade hydrochloric acid.
