The data set contains one excel file for each salt type (NaCl, MgSO4, and Na2SO4) with data from evaporation experiments and additional sample analysis. Each file has six sheets: 1. Sample properties (i.e. dimensions, effective properties, weight,...) 2. Evaporation (i.e. mass loss of each sample determined over time, temperature, relative humidity) 3. Mass loss (calculated for each sample from evaporation data, final saturation/water content) 4. Evaporation rate (calculated for each sample from mass loss, time) 5. Water balance (sample properties after evaporation, properties of separated crust, water content of crust and removed sand) 6. Plots (plots of cumulative mass loss, evaporation rate, and ambient conditions). The sand used is F32 quartz sand from Quarzwerke Frechen with a mean grain size of 240 µm (see related publication for more details). The .CSV files represent the first and second sheet of the .XLSX file of the corresponding salt type.