Na K7 (S2 W18 O62) (H2 O)22

H₄₄K₇NaO₈₄S₂W₁₈

Long De-LiangCronin, L.Abbas, H.Koegerler, P.

Angew. Chem. Int. ed. (2005) 44, 3415-3419

a=22.2248Å   b=12.6847Å   c=28.2393Å

α=90°   β=96.0234°   γ=90°