Material selection for dilute hydrochloric acid and NaCl solutions

2010-03-25View Original

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Since dilute hydrochloric acid and NaCl solutions contain chloride ions, cannot stainless steel pipes be used? What type of pipe should be employed instead?

Reply #22010-03-25

What about temperature and pressure? At normal temperature and pressure, PVC pipes can be used; for temperatures below 80 degrees, PP pipes are suitable; for temperatures above 100 degrees, steel-lined PTFE or graphite pipes are appropriate. For heat exchangers and towers, graphite material is the best choice.

Reply #32010-03-25

Below 0.8 Mpa, 30~50 degrees; if transporting alkaline solutions or NaOH solutions, stainless steel is fine, right?

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Material selection for dilute hydrochloric acid and NaCl solutions

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