Scandium (Sc) solution, typically prepared in nitric acid, serves as a certified reference material for trace element analysis. It is primarily used to calibrate analytical instruments such as inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectroscopy (AAS), and other spectroscopic methods for accurate quantification of scandium in environmental, geological, and industrial samples.

This solution finds applications in water quality testing, soil and sediment analysis, mining and metallurgy for ore characterization, and pharmaceutical quality control. In research settings, it supports studies on rare earth elements, alloy development, and material science where scandium doping enhances properties like strength and thermal stability in aluminum alloys or ceramics.

Due to scandium's rarity and specialized uses, this solution is a niche reagent, not a commodity chemical.