A simulation was made of the diffusion of formaldehyde in proton-disordered ice Ih at atmospheric pressure, at 200 to 273K. The formaldehyde molecules diffused in ice predominantly by jumping between B sites (bond-breaking mechanism), but substitutional diffusion was also observed. At 260K, the diffusion constant was predicted to be 3 x 10-7cm2/s to 4 x 10-7cm2/s.

Molecular Dynamics Study of Diffusion of Formaldehyde in Ice. Ballenegger, V., Picaud, S., Toubin, C.: Chemical Physics Letters, 2006, 432[1-3], 78-83