Na H3 (Se O3)2

H₃NaO₆Se₂

Chomnilpan, S.Tellgren, R.Liminga, R.

Acta Crystallographica B (24,1968-38,1982) (1977) 33, 2108-2112

a=10.3428Å   b=4.8372Å   c=5.7876Å

α=90°   β=91.162°   γ=90°