Question: can edta be filter sterilized?
Answer: EDTA (ethylenediaminetetraacetic acid), 0.5 M (pH 8.0) Add water to 1 liter and filter sterilize. Begin titrating before the sample is completely dissolved. EDTA, even in the disodium salt form, is difficult to dissolve at this concentration unless the pH is increased to between 7 and 8.