Common iIntersection point independent of mole fraction: A new regularity

A new regularity has been found for compressed liquid mixtures, namely, a common iIntersection point for the isotherms of the reduced bulk modulus of a compressed liquid mixture as a function of composition. The regularity holds over a specilic range of densities from a particular liquid mixture. The regularity has been tested for a LJ (12,61 mixture, Ar+ Kr, Kr + Xe. and CO, +C_,I-I~, based on equations of state derived from statistical mechanics and it is wdid close to within experimental accuracy.