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Substitute HCl for H2SO4 in RO feedwater?

Hi to everyone, just want to ask if I can use HCl acid as replacement for sulfuric acid in our RO plant feedwater?.,I ran out of sulfuric Acid and delivery shall arrive 2weeks from now.
Pls. advice..
Thank You...

Mark Lopez
- Dammam, KSA
September 7, 2010

Either hydrochloric or sulfuric acid is fine for adjusting the pH of the RO feed water. Most people prefer sulfuric acid due to the corrosiveness and fumes from hydrochloric acid.

Its probably best to dilute the HCl to reduce fuming, and to have good ventilation in the room where the feed tank is.

Lyle Kirman
consultant - Cleveland Heights, Ohio
September 10, 2010

You can replace no problems but in DI Units only
Best Regards
Senior Chemist
Yasser Alshafee

Yasser Alshafee
steel factory - Egypt
September 19, 2010

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