(N H4)3 As O4 (H2 O)3

AsH₁₈N₃O₇

Hseu, T.H.Lu, T.-H.

Acta Crystallographica B (24,1968-38,1982) (1977) 33, 3947-3949

a=6.818Å   b=6.364Å   c=22.811Å

α=90°   β=93.74°   γ=90°