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Table1 Saturated salt solutions and equilibrium relative humidity at different temperatures

From: Moisture sorption characteristics and modelling of babool (Acacia nilotica) gum

S. no. Saturated salt solution Equilibrium relative humidity (%)
30 °C 40 °C 50 °C 60 °C
1 Lithium chloride (LiCl) 11.28 11.21 11.40 10.95
2 Potassium fluoride (KF) 22.68 20.80 20.77
3 Potassium acetate (CH3CO2K) 21.61 31.40
4 Magnesium chloride (MgCl2) 32.44 32.70 29.26
5 Potassium carbonate (K2CO3) 43.17 37.70
6 Magnesium nitrate (Mg (NO3)2) 51.40 48.42 46.30 47.70
7 Cobalt chloride (COCl2) 55.48 50.01
8 Sodium nitrite (NaNO2) 63.00
9 Potassium iodide (KI) 66.09 64.49 63.11
10 Sodium nitrate (NaNO3) 67.35
11 Sodium chloride (NaCl) 75.00 74.68 74.70
12 Potassium chloride (KCl) 83.62 82.32 80.25
13 Potassium nitrate (KNO3) 92.31 89.03 85.00
14 Potassium sulphate (K2SO4) 95.80 95.82