• Formulating

  Storing Diluted Citric Acid

  Posted by ledude on January 12, 2015 at 10:15 am

  Does anyone have any experience storing a diluted citric acid solution used for making pH adjustments? We tried a 30% diluted solution and noticed some contamination after a few weeks. I would think that with the low pH (1.20) there would be no environment for microorganisms. Thanks for any insight…

  DavidW replied 9 years, 4 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Bobzchemist

  Member

  January 15, 2015 at 10:25 am

  Microbes is weird, so there’s no telling, but maybe it was mold?

• 

  DavidW

  Member

  January 16, 2015 at 8:40 am

  I have kept 30% solution in our lab for months  (5,6, and no visible growth

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