Colloidal systems present phase behavior, thermodynamic and structural properties that depend on the actual interaction among pairs of colloidal particles. 20 years ago it was shown that those characteristic properties does not depend on the specific interaction but on other parameters, as the second virial coefficient and the effective particle size. That is known as the extended law of corresponding states.
In this talk, it will be shown how colloidal particles present a common phase diagram and structure provided we employed the suitable scaling parameters, this is linked to the extended law of corresponding states. It will be discussed the analysis of both simulation and experimental results.