Chelating agent

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By: TOM BRANNA

Editor

Chelating agents are used in detergent formulations because they inactivate the hardness minerals calcium and magnesium, and reduce ill effects of other dissolved metals such as iron and manganese. Currently, there is sparing use of chelating agents in U.S. detergent formulations.  Sodium citrate functions as a chelating agent when used as a builder.

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