what are efflorescent salt and deliquescent salts? give example of each
Answers
Most examples of hygroscopic substances include salts. Some examples are Zinc chloride (ZnCl2), sodium chloride (NaCl) and sodium hydroxide (NaOH). There are also some other common substances we know as hygroscopic.
Examples of Deliquescent Substances. Most deliquescent substances are salts. Examples include sodium hydroxide, potassium hydroxide, ammonium chloride, gold(III) chloride, sodium nitrate, and calcium chloride.Nov 27,
Answer:
1)Efflorescent is property of salt
In chemistry, efflorescence (which means "to flower out" in French) is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water, or occasionally in another solvent.
2)Efflorescence is a crystalline deposit of salts that can form when water is present in or on brick, concrete, stone, stucco or other building surfaces. It has a white or greyish tint and consists of salt deposits left behind when water evaporates.
Examples-Copper(II) sulfate crystal (CuSO4.5H2O), a blue crystalline solid
Deliquescent salts or substances are those that absorb moisture from their surrounding atmosphere. It has the tendency to dissolve in the moisture absorbed and form its own solution.
Some examples are :- Sodium Nitrate, Calcium Chloride and Potassium Oxide.