How quickly do ocean spray droplets dry into solid salt particles?

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SUMMARY

The discussion focuses on the drying process of ocean spray droplets into solid sodium chloride (NaCl) particles. Key variables influencing this process include droplet size, salt concentration, relative humidity, air speed, and temperature. It is established that sodium chloride is hygroscopic, absorbing moisture when relative humidity exceeds 75%. The drying process occurs when humidity falls below this threshold, particularly in heated air environments such as ventilation ducts.

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  • Understanding of hygroscopic materials and their properties
  • Knowledge of aerosol dynamics and sea spray formation
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  • Basic principles of thermodynamics related to temperature and humidity
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Peter Hessellund
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When a bubble in the ocean bursts water drops are thrown into the air. How fast do these water drops dry out creating solid salt particles? There must be a formula for calculating this and I am guessing that the following variables must figure in the formula:
- Droplet size
- Salt concentration (Lets just assume that is is NaCl)
- Relative humidity
- Air speed around the particle
- Temperature

Or maybe someone just made a measurement.
 
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I doubt they ever do dry out ... sodium chloride is hygroscopic . It absorbs moisture from the atmosphere when the relative humidity is above 75%
 
But they must dry out when the humidity is below 75% In my case when the air enters a ventilation duct where the air is heated slightly.
 
Peter Hessellund said:
Or maybe someone just made a measurement.
Look under "sea spray", or "aerosols", and see if you can find out some information for your inquiry.
 

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