What density should the insoluble solid in the water spray be so that it can float inside the water drop? And can the hydrophilicity or hydrophobicity of a solid affect its ability to float inside the droplet?
In the classic case, everything seems simple. An insoluble solid, heavier than water, will sink into it. In the case of a small drop of water, however, the question arises whether the insoluble particle of a solid body heavier than water will sink in a drop or fall out of the drop?
What properties other than the density of a solid can make it able to wrap around itself in a water jacket and stay inside a water droplet?
The attached graphic, placed to illustrate the issue, comes from the website: https://energyeducation.ca/encyclopedia/Aerosol