Certain hygroscopic substances, not only absorb moisture from the air, but they themselves dissolve in that moisture, undergoing a change of state. Such substances are called deliquescent substances. The process is called deliquescence.
|some Deliquescent substances|
|Anhydrous calcium chloride||CaCl2||Ferric chloride||Fecl3|
|Magnesium chloride||MgCl2||Calcium nitrate||Ca(NO3) 2|
|Solid sodium hydroxide||NaOH||Copper nitrate||Cu(NO3) 2|
|Solid potassium hydroxide||KOH||Zinc nitrate||Zn(NO3) 2|