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. 2022 Oct 13;8(10):e11056. doi: 10.1016/j.heliyon.2022.e11056

Table 1.

The water activities (aw) of saturated salt solutions at various temperatures (Greenspan, 1977).

Salt solutions
CH3COOK Mg(NO3)2∗6H2O NaCl KCl KNO3
aw at 20 °C 0.235 0.544 0.755 0.851 0.946
aw at 35 °C 0.208 0.499 0.749 0.830 0.908
aw at 50 °C 0.192 0.454 0.744 0.812 0.848