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What chemicals can I use to lower pH levels of DI Water and Soft Water
I would like to find out what is the best way to lower ph in di water and soft water.
I have been using acetic acid
[on
eBay or
Amazon]. I would like to find a chemical (acid) that would help
me in not having to dump out my tank due to smell and cloudy build up.
thanks
Frado.
ph tester - San Antonio, Texas
August 10, 2009
|
First, for soft water, it is normally just tap water that has had the poorly soluble calcium ions replaced with chloride ions which are very soluble. For this, HCl,
muriatic acid
[affil links] is probably the cheapest. Use it in a good grade and add it in a dilute form to avoid overshooting the desired point. - Navarre, Florida I think that the smell and cloudiness is due to bacterial growth build up. Years ago we used formaldehyde (now banned) to slow this down. As long as you move from ph above 7 to < 7 you will alway experiaence this (I think). Terry HicklingBirmingham, United Kingdom Don't know a whole lot about your situation, but it's not good to add chemicals to the purified water tanks. The recirculation of the water should maintain the pH. If recirc doesn't maintain the pH, your filters/beds could be bad.  Sheldon Taylor supply chain electronics Wake Forest, North Carolina There is phosphoric acid. It is quite non-volatile and non-hazardous.  Dave Wichern Consultant - The Bronx, New York |
Perhaps I am missing something, but why do you want to reduce your pH and what do you want it reduced from and to? The answer to your problem will be dependent on what you want to achieve and at what cost. The simplest solution is often to eliminate the cause of your problem and not to add another process tocorrect an already faulty one.
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
August 15, 2009
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