Constant Composition Groups in Glass of Sodium–Borate Systems According to the Data of X-Ray Diffractometry

X-ray spectra of glass of the sodium-borate system are obtained by the method of X-ray diffractometry. Using the proposed processing of these spectra, the smallest elements of the sodium–borate glass structure (constant stoichiometry groups, CSGs), which unambiguously determine their properties, are determined. The method for determining the smallest elements of the glass structure consists of comparing the glass contours with the known contour of a glass of a stoichiometric composition.