Solute system, freezing droplets from

The droplets in this study typically had volume median diameters of around 10 pm. In a typical experiment droplets of the desired concentration and composition were cooled from ambient temperatures at a rate of 10 K min to 173 K where a diffraction pattern between 19 and 50° was measured. The intensity ratio I44/ I40 as a function of droplet freezing temperature, determined from the diffraction patterns measured in these experiments, has been reported previously. In Figure 6 we report the fraction of cubic ice as a function of droplet freezing temperature for each of the solute systems, determined using the relationship described in Figure 4. 

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