The dataset comprises Magnetic Resonance Imaging (MRI) scans of seven 5mm tubes containing Copper Sulfate (CuSO4) solutions with concentrations ranging from 0 to 100 mM. The scans (i.e. multiple Series of the same Study) were performed on June 22, 2023 at the Karlsruher Institute of Technology using a Bruker BioSpin MRI system (Biospec 152/11 model).