Selection of equipment materials
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I have a reaction vessel; the material used is 32% sodium hydroxide, which reacts to form a NaCl solution. The temperature is 100 degrees, and the pH level ranges from 14.5 to 8. I would like to ask experts which material would be most suitable and reliable for use in this reaction vessel
If it’s alkaline, then it’s stainless steel; I’m not exactly sure about the specific type, but 304 or 316L are the ones that are commonly used.
What reaction produces NaCl? Neutralize with HCl? Then there’s also the issue of corrosion caused by hydrochloric acid on the equipment; it is likely necessary to use linings (such as fiberglass or PTFE) or equipment coated with enamel.
It is recommended to use 00Cr26Mo1 material
It is recommended to use storage tanks with an F4 steel lining
The original poster mentioned the pH value; glass-lined steel does not tolerate alkalinity well.
Those with a PE lining are fine; they’re relatively affordable