We generally observe that the amount of reaction products on the Na electrode surfaces increases with increasing storage time. The presented data also shows an increased reactivity between the Na electrode surfaces and the respective liquids when the electrolyte salt is the rise in Na species concentration when switching from pure solvent to electrolytes with conductive salt indicates that more Na-containing organic and inorganic SEI species are formed. The NaCl contribution clearly shows salt decomposition, and interestingly, the initial chloride content (after 2min.) is lower when 10% VC is added to the electrolyte.