![Chemical gardens grown by introducing Fe(II) salts [FeCl2·4H2O (a–c) or Fe2SO4·7H2O (d–f)] into 1 M NaOH. Three trials of each experiment are shown; photos represent 24 h of growth.](https://www.ceb.cam.ac.uk/sites/www.ceb.cam.ac.uk/files/media/chemicalgardens.jpg "chemicalgardens.jpg")
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Chemical gardens grown by introducing Fe(II) salts [FeCl2·4H2O (a–c) or Fe2SO4·7H2O (d–f)] into 1 M NaOH. Three trials of each experiment are shown; photos represent 24 h of growth.
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chemicalgardens.jpg
Department of Chemical Engineering and Biotechnology
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