Citation: Labbe, P; Ouachee, D; Goreaud, M; Raveau, B (1983). Bronzes with a Tunnel Structure Kx P4 O8 (W O3)2m: The Tenth Member of the Series - K P8 W40 O136. Journal of Solid State Chemistry, 50, pp. 163-172.
Formula: K O67 P4 W20
Chemical name:Potassium phosphorus tungsten oxide (1/4/20/67)