Citation: Le Bail, A; Leblanc, M; Amoros, P (1990). Synthesis and crystal structure of Na~1+x~V~4~P~4~O~17~(OH) (x=1.44). Journal of Solid State Chemistry, 87, pp. 178-185.
Formula: H Na2.57 O18 P4 V4
Chemical name:Sodium vanadium phosphate hydroxide (2.6/4/4/1)