EDTA Titration Calculations
In the lab 1 ppm CaCO 3 is expressed as 1 mg CaCO 3 per 1 Liter of sample or ppm is mg CaCO 3 per L of sample. Calcium ions can be analyzed by titration with EDTA using an appropriate indicator. EDTA is ethylene diamine tetraacetic acid or H 4C 10H 12N 2O 4. EDTA itself is not very water soluble so the disodium salt is used, Na 2H 2C 10H 12N 2O ...
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