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scienceMar 1, 20196:31pending

Ferrous sulfate, or iron(II) sulfate: Chemistry in its element

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Mike Freemantle on the iron compound that has been turning oak gall extract into indelible ink for centuries, but is now eating though our ancient manuscripts and musical scores

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Ferrous sulfate, or iron(II) sulfate: Chemistry in its element

Chemistry in its element

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