difference between crystalisation and evaporation? can we get pure salt only by evaporation?
difference between crystalisation and evaporation? can we get pure salt only by evaporation?
Evaporation is a type of vaporization of a liquid that occurs only on the surface of a liquid. Example is the seawater evaporating and forming into clouds.
Crystallization is the (natural or artificial) process of formation of solid crystals precipitating from a solution, melt or more rarely deposited directly from a gas. Example is the dry ice.
Evaporation takes place only at surface.
Crystallization takes place through out the container.
Now about the second part of question.
There are other methods to get pure salt.They are;
1)Separate Salt and Water Using Distillation
You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation.
2)Another way to separate salt from water is to use reverse osmosis. In this process, water is forced through a permeable filter, causing the concentration of salt to increase as the water is pushed out. While this method is effective, reverse osmosis pumps are relatively expensive.
Evaporation is a type of vaporization of a liquid that occurs only on the surface of a liquid. Example is the seawater evaporating and forming into clouds.
Crystallization is the (natural or artificial) process of formation of solid crystals precipitating from a solution, melt or more rarely deposited directly from a gas. Example is the dry ice.
Evaporation takes place only at surface.
Crystallization takes place through out the container.
Now about the second part of question.
There are other methods to get pure salt.They are;
1)Separate Salt and Water Using Distillation
You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation.
2)Another way to separate salt from water is to use reverse osmosis. In this process, water is forced through a permeable filter, causing the concentration of salt to increase as the water is pushed out. While this method is effective, reverse osmosis pumps are relatively expensive.
