Citation: Benabbas, A; Borel, M M; Grandin, A; Leclaire, A; Raveau, B (1990). The niobium phosphate bronze K~5-x~Nb~8~P~5~O~34~, a new tunnel structure, first member of the series (K~3~Nb~6~P~4~O~26~)~n~ . KNb~2~PO~8~. Journal of Solid State Chemistry, 87, pp. 360-365.
Formula: K4 Nb8 O34 P5
Chemical name:Tetrapotassium octaniobium pentaphosphate