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Reduction of potassium dichromate

Reduction of potassium dichromate

A500/0533

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Credit

ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY

Caption

Reduction of potassium dichromate. Seven test tubes all containing potassium dichromate. In its ordinary dissolved state (+6 oxidation state) potassium dichromate is orange. However, in some of these tubes it has been reduced to a +3 oxidation state and is a deep olive green colour.

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Model release not required. Property release not required.

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