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. 2024 Nov 23;17(23):5733. doi: 10.3390/ma17235733

Figure 2.

Figure 2

The water was collected from the underground spring in a field near Bad Nenndorf in northern Germany. A preliminary reaction was carried out “redneck style” at the source of origin, and an immediate change in color confirmed the feasibility of the synthesis. The figure also represents the chemistry carried out in the laboratory and shows a photograph of the orange material obtained.