1. What are zeolites?

Zeolites are three-dimensional, microporous, crystalline solids with well-defined structures that contain aluminum, silicon, and oxygen in their regular framework; cations and water are located in the pores. The silicon and aluminum atoms are tetrahedrally coordinated with each other through shared oxygen atoms. Zeolites are natural minerals that are mined in many parts of the world; most zeolites used commercially are produced synthetically. Zeolites have void space (cavities or channels) that can host cations, water, or other molecules. Because of their regular and reproducible structure, they behave in a predictable fashion.

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1. What are zeolites?
2. When were zeolites discovered?
3. What are some of the major applications for zeolites?
4. How do zeolites function as ion exchangers?
5. How many types of zeolites are there?
6. Are zeolites stable?
7. How do zeolites separate molecules?
8. Are zeolites re-useable?
9. How can zeolites be modified?
10. In what forms are zeolites available?
11. When were synthetic zeolites first made?
12. Are new zeolites still being discovered?
13. What makes zeolites special when compared with other inorganic oxide materials?
14. What are the health and safety aspects of zeolites?