noun Chemistry.
a liquid used to remove a solute from a solution.

extract + -ant

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The mixed extractant solvent may form an organic phase in an extraction system that also includes an aqueous phase.
Addition of the less volatile components, such as the extractant and modifier, will increase the flash point for the mixture.
Because the extractant is neither acidic nor basic, indigenous metals such as iron are not removed from the solids by the process.
Also, the extractant is lost, which is both expensive and environmentally unacceptable.
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