Iron solutions unknown
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Iron solutions
Chemical chart of solutions of iron salts in wine glasses, illustrating the colour of each. Figure 69 shows iron oxide salts ['Eisenoxydul salze'] in seven solutions. Figure 70 shows ferric oxide salts ['Eisenoxyd salze'] in five solutions. Above are four inset figures intended to show the colours of both oxides in weak and concentrated solutions contained in bottles. Figures 69-70 from Das Laboratorium…v.1 (Weimar, 1840). Inscribed above 'Taf: LXIX. LXX.' Both sets of figures are headed 'EISEN' and there is a numbered key to each solution beneath the images.
- Image reference: RS-12209
- The Royal Society
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