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How can i estimate calcium EDTA in a given sample? We tried estimation by using mercuric nitrate but in vain we cant get a sharp end point.

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  • $\begingroup$ @JinnySara Could you provide more information about the sample? $\endgroup$
    – Karlo
    Jun 10, 2016 at 12:24

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Something crossed my mind - you could try titrating with Fe(III) standard using SCN- as indicator. First excess of Fe3+ would produce a sharp end-point.

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  • $\begingroup$ Thanks a lot for the information you gave me. Actually it helped mei a lot and v did this using ferric ammonium sulphate using potassium thiocyanate as indicator which will give you a blood red colour. We recently manufactured calcium disodium edatate hard gelatin capsule so for that we were trying to develop a method $\endgroup$
    – Jinny Sara
    Jun 12, 2016 at 5:32

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