Home Cosmetic Science Talk Formulating How much EDTA or citric acid minimum required to remove iron from water?

  • How much EDTA or citric acid minimum required to remove iron from water?

    Posted by abdullah on January 16, 2022 at 12:59 pm

    I want to make a simple 1% sodium salicylate solution with a cationic surfactant. The problem is the iron in water changes the color of solution so i need a chelating agent for iron but the cationic surfactant forms insoluble salt with chelating agents. 

    I have tried even 0.008% EDTA and it still produced insoluble salt. 

    My question is: what is the minimum amount of EDTA or citric acid required to remove iron from water? 

    abdullah replied 2 years, 1 month ago 1 Member · 0 Replies
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