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Auxiliary agent for reducing chromium (VI) ion to chromium (III) ion
Auxiliary agent for reducing chromium (VI) ion to chromium (III) ion
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机译:用于将六价铬离子还原为三价铬离子的助剂
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摘要
The invention relates to an additive for reducing Cr(VI) ions to Cr(III) ions, comprising a complex of tin(II) and a carboxylic acid or a salt thereof, and to the process for the preparation thereof. It also relates to a process for preparing a material having a low chromium(VI) content. Finally, it relates to the use of said additive for reducing chromium(VI) ions to chromium(III) ions.
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