Zeolite and molecular sieves are adsorbent materials that are used interchangeably. A molecular sieve is a type of zeolite that is used for its microscopic sieving ability within the material. But how are both these materials different? Let’s find out.
Discovery of Zeolite
Zeolite is a crystalline mineral with tiny uniform pores that distinguish it from other absorbents. It was discovered by the Swedish mineralogist A.F Cronstedt, who found that natural aluminosilicate ore when boiled burns naming it zeolite.
Discovery of Molecular Sieves
Molecular sieves as a concept was introduced by McBain in 1932. It is a highly porous material that sieves substances based on molecules. It operates on a molecular level used as an absorbent for gases and liquids. Western Carbon & Chemical is the most trusted molecular sieves supplier providing molecular sieves in grades WCC 3A, WCC 4A, WCC 5A and WCC 13X.
Difference Between Zeolite and Molecular Sieve
- Classification – When speaking of the difference between zeolite and molecular sieve, zeolite is based on the physical and chemical properties of a substance. While molecular sieve is based on structure and function. Zeolite can be used as a molecular sieve but a molecular sieve cannot be equivalent to zeolite.
- Chemical Composition – The chemical composition between both the adsorbents is different. The chemical composition of zeolite is sodium aluminosilicate. While a molecular sieve is composed of crystalline silicates or aluminosilicates.
- Characteristics –Zeolite has a glass-like lustre and has the ability to reabsorb water or other liquids. Molecular sieves have unique characteristics like high adsorption capacity and excellent thermal stability.
- Unique Properties – Molecular sieves as a relative density of 2 to 2.8 and hardness between 3 to 5. Zeolite is insoluble in water and exhibits excellent thermal stability and acid resistance with the increase in silica in the composition.
Zeolite and molecular sieves are closely related in their microscopic structure and properties. Understanding these differences can help you differentiate the right absorbent material for your industrial applications. Western Carbon & Chemicals, is a leading molecular sieves manufacturer in India offering a wide range of molecular sieves tailored for your unique applications. For more information call us.
