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Dental amalgam alloys

K F Leinfelder1

  • 1University of Alabama at Birmingham, School of Dentistry.

Current Opinion in Dentistry
|April 1, 1991
PubMed

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EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
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The EDTA titration types for metal ion analysis include direct titration, back-titration, and replacement titration.
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