molecular sieve


Definition of molecular sieve

: a crystalline substance (such as a zeolite) characterized by uniformly sized pores of molecular dimension that can adsorb small molecules and is used especially in separations

First Known Use of molecular sieve

1869, in the meaning defined above

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The first known use of molecular sieve was in 1869

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Cite this Entry

“Molecular sieve.” Dictionary, Merriam-Webster, Accessed 22 Oct. 2021.

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