Crystal data for high-temperature As₂O₅

High-temperature As₂O₅ at 768 ± 5 K is tetragonal with a = 8.577 (1), c = 4.637 (1) Å, V = 341.2 Å³, Z = 4, D_c = 4.475 Mg m^-3. Indexed powder data are given.