(NH4)6 P2 W18 O62 Polyoxometalate (NH4)6 P2 W18 O62, A Wells-Dawson type polyoxometalate .alpha.-(NH4)6(P2W18O62) .alpha.-(NH4)6DT 110294-54-7 AIDS-001683 AIDS001683 Ammonium phosphotungstate, (NH4)6P2W18O62 (6CI) Ammonium tungstophosphate ((NH4)6P2W18O62) Tungstate(6-), hexatriaconta-m-oxooctadecaoxobis[m9-[phosphato(3-)-kO:kO:kO:kO':kO':kO'':kO'':kO''':kO''']]octadeca-, hexaammonium