A database about Preparation of Laboratory Reagents. A Project of SCIENCE Pakistan

Ammonium Citrate, lead free

Dissolve 40g of citric acid in 100 ml of water and make alkaline to phenol red with ammonium hydroxide. Remove lead by shaking with small portions of dithizone extraction solution in chloroform until the dithizone solution retains its original green color.Discard the extraction solution.
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