Copper sulfate 10%, aqueous, is a high quality solution characterized by its versatility in various scientific and industrial fields. In particular, this solution is widely used in materials science and metallography to perform surface etching and microstructure studies of metals and alloys. The particular suitability of the solution lies in its ability to selectively etch materials to highlight specific structures of interest for analysis.

Chemically, the 10% copper sulfate solution consists of copper(II) sulfate pentahydrate dissolved in ultrapure water. Copper sulfate is a salt that releases copper ions and sulfate ions in aqueous solution. These ions react with the surfaces of the materials under examination to produce the desired etchings and contrasts.