Question

What are zeolites? Give any two uses of zeolites.​

Answer 1

Answer:

Zeolites are crystalline solids that are known to have well defined three dimensional structures that contain micropores in them. The regular structural frameworks of zeolites are made up of three primary components, namely oxygen, silicon, and aluminium. The micropores present in their chemical structures are known to contain water and certain cations. The chemical structures of zeolites feature a tetrahedral coordination between the aluminium atoms and the silicon atoms, which is maintained with the help of the shared oxygen atoms.

examples :

Two very common, everyday uses of zeolites are in odor control and pet litter; in both, the porous crystalline structure of the zeolites helps by trapping unwanted liquids and odor molecules.

Answer 2

What is Zeolites?

A shape-selective catalyst having Honeycomb structure which permit only selective molecules.

Formula: Mx/n [(AlO₂)x (SiO₂)y].zH₂O

Examples:

• ZSM-5
• Linde-A (synthetic)
• Faujasite (natural)

Application of Zeolites:

1. Acts as water softener & selective absorbents.
2. Used as "ions-exchanger" in softening of hard water.
3. For cracking of Hydrocarbons & Isomerization.