BERYLLIUM FLUORIDES. PART I. STUDIES ON HYDROLYSIS OF FLUOBERYLLATE ION (BeF42-) BY CONDUCTIVITY AND THERMOMETRY

By conductivity, thermometry and chemical methods it has been shown that the primary reaction between caustic soda and fluobetyllate ion occurs according to the equation : BeF₄^2- + 2OH^- = Be (OH)₂ + 4F' ; the secondary reaction, _i.e. the dissolution of Be (OH)₂ in excess of alkali. occars subse­quently, forming beryllate ion ; no indication of the formation of (BeH₃OH)^2- has been found.