Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Magnesium salt of EDTA is the same as EDTA-2NaMg?

  1. Feb 6, 2017 #1
    I was reading through the standard complexiometric method of determining hardness in water, and the procedure mentioned the use of the magnesium salt of EDTA. I looked up online to purchase this reagent but all I could find was disodium magnesium salt of EDTA. Are they one and the same? Thanks!
  2. jcsd
  3. Feb 6, 2017 #2


    User Avatar

    Staff: Mentor

    For this purpose they are equivalent.

    Not that this particular salt is really required, just EDTA (or disodium salt) can be used as well. Magnesium salt makes detection of the endpoint against the Eriochrome Black T easier.
  4. Feb 6, 2017 #3
    Beautiful! Thank you for this!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted