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Solvent Alternatives Guide
Chelating Agents

General Information

  • Chelating agents are used to solubilize hard water salts so that they stay in solution.

  • Chelating agents are used in alkaline cleaners.

  • Chelating agents do not decompose or lose their effectiveness at high temperatures.

  • A major disadvantage of chelating agents is that they impair the ability of other chemicals to remove emulsified oil and dissolved metals from the solution. This can create a waste disposal problem.

  • Chelating agents are produced in both powder and liquid form.

  • The most common chelating agents are ethylene diamine tetracetic acid (EDTA) and nitrilo triacetate (NTA).

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Last Update: 14 March 1995