Water of Crystallization Examples
- Copper Sulphate Pentahydrate (CuSO4.5H2O) is the pentahydrate of Copper (2+) sulfate and it is a bright blue crystalline solid.
- Washing Soda (Na2CO3.10H2O) is an inorganic hydrate of sodium carbonate and has a white or colorless crystalline salt-like appearance.
- Gypsum (CaSO4.2H2O) is a soft sulfate mineral consisting of Calcium Sulfate Dihydrate. It has a dark color solid rock-like appearance.
- Tin (II) Chloride Dihydrate (SnCl2.2H2O) is a white crystalline solid.
Water of Crystallization
Crystallization is a technique for separating solids from a solution or, to put it another way, a procedure for purifying things. This is the most frequent method for purifying seawater. Some salts have a few water molecules in their crystal structure as an essential component. The water of crystallisation refers to the water molecules that make up a crystal’s structure. Hydrated salts are salts that contain the water that causes crystallization. Below is a detailed explanation of crystallisation of water, hydrated and anhydrous salts, and also the action of heat on the hydrated salts.