Related Experiment Video
Updated: Jul 18, 2026

Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
Application of saccharose as copper(II) ligand for electroless copper plating solutions
Eugenijus Norkus1, Kestutis Prusinskas, Algirdas Vaskelis
1Department of Catalysis, Institute of Chemistry, A. Gostauto 9, LT-01108 Vilnius, Lithuania. norkus@ktl.mii.lt <norkus@ktl.mii.lt>
Abstract:
Saccharose, forming sufficiently stable complexes with copper(II) ions in alkaline solutions, was found to be a suitable ligand for copper(II) chelating in alkaline (pH>12) electroless copper deposition solutions. Reduction of copper(II)-saccharose complexes by hydrated formaldehyde was investigated and the copper deposits formed were characterized. The thickness of the compact copper coatings obtained under optimal operating conditions in 1h reaches ca. 2 microm at ambient temperature. The plating solutions were stable and no signs of Cu(II) reduction in the bulk solution were observed. Results were compared with those systems operating with other copper(II) ligands.
Related Concept Videos
Electrodeposition
Electrodeposition can...
Precipitation and Co-precipitation
Extraction: Advanced Methods
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Microbial Leaching
Formation of Complex Ions

