“…Here, the kinetics of crystallization of the H 2 O:CD 3 OD and H 2 O:CD 3 ND 2 ice mixtures is described using the formalism employed above for H/D exchanges. The rate of crystallization of pure ASW has been investigated in many previous studies (Schmitt et al, 1989;Dohnálek et al, 1999Dohnálek et al, , 2000Hage et al, 1994Hage et al, , 1995Jenniskens and Blake, 1996;Maté et al, 2012;Safarik et al, 2003;Safarik and Mullins, 2004;Smith et al, 2011). The kinetics has been shown to follow nucleation models but a large variation in the Avrami exponents and in the activation energies (from $5000 K to 10,000 K) was observed.…”