Crystal data for an adduct of orthotelluric acid and urea, Te(OH)₆.2CO(NH₂)₂

The crystal data of the title compound have been determined from single-crystal data [Loub, Haase & Mergehenn (1979). Acta Cryst. B35, 3039–3041]: C2/c, a = 14.828(8), b = 8.891(6), c = 10.023(7) Å, β = 129.13(3)°, V = 1025.0(9) ų, Z = 4, D_m = 2.31(3), D_x = 2.27 Mg m⁻³. Power data obtained with powder diffractometer, θ–2θ scan, T = 295 K, Cu Kα radiation are presented. Infrared and Raman spectra are given. Thermal decomposition is reported [Fábry, Loub & Feltl (1982). J. Therm. Anal. 24, 95–100]. The JCPDS Diffraction File No. for C₂H₈N₄O₂Te(OH)₆ is 36-1470.