Fig. 1: Visualization of the localization and the composite score, G, of the solvents in the Hansen space.
From: A tool for identifying green solvents for printed electronics

The distribution of 132 common solvents in the 3D Hansen solubility space, as spanned by the three Hansen solubility parameters: dispersion, polarity and hydrogen bonding. The effective Ra distance between two solvents in the 3D Hansen space provides information on their similarity in solubility properties, with a smaller Ra value indicating a higher similarity in solubility. The size and traffic-light-color coding of the sphere representing a particular solvent communicate its GSK composite score, as specified in the inset, with a large green sphere indicating a benign solvent while a small red sphere marks a problematic solvent.