Creation of a tree of phases of the fourfold mutual systems Na,Ba||F,Cl,WO$_4$

Multicomponent system is the basis for the development of compositions with desired properties. Previously, the study of topology of multicomponent systems was carried out using graph theory (method of indices of vertices). Due to the complex topological structure of component relationships, the study of such systems is currently underway with the use of innovative methods: computer simulation and experimental study using the capabilities of modern hardware and software of the experiment. In the framework of the innovative methodology of the study the reciprocal Quaternary system Na,Ba||F,Cl,WO$_4$, at the level splitting in stable Association phases. The tree phases was confirmed experimentally by means of DTA and XRD.