UNSPSC 41104930: Molecular sieve

A material device containing tiny pores of a precise and uniform size that is used as an adsorbent for gases and liquids. Molecules small enough to pass through the pores are adsorbed while larger molecules are not. It differs from a common filter in that it operates on a molecular level.

UNSPSC 41104930 Molecular sieve is a Commodity code with minimal recent state and local procurement activity directly aligned to the nominal product category. The three recent opportunities tagged to this code involve fire and rescue equipment maintenance (Fulton County, Georgia IFB for self-contained breathing apparatus servicing), oyster hatchery filtration components (Mississippi state IFB), laboratory testing services (City of Palm Bay, Florida ITB), granulated activated carbon filter replacement (Louisville/Jefferson County Metro IFB), and geotech filter capsules (Illinois Environmental Protection Agency small purchase). While activated carbon and certain filtration media can function as molecular sieves in industrial applications, the recent solicitations frame these procurements as consumable filter materials and testing services rather than as molecular sieve chemistry products. The issuing bodies span state environmental agencies, county and municipal governments, and zoo operations; no single jurisdiction appears more than once in the recent record.

Geographic activity centers on Georgia, Mississippi, Florida, Illinois, and Kentucky, with no clear concentration pattern across states. Representative recent opportunities include Fulton County's July 2026 IFB (due July 28, 2026) for fire rescue equipment and SCBA maintenance; the State of Illinois Environmental Protection Agency's March 2026 small purchase (due March 16, 2026) for 2,350 disposable geotech filter capsules at 0.45-micrometer pore size; and the City of Palm Bay's March 2026 ITB (due March 17, 2026) for laboratory testing services across water and wastewater programs. The code shows sparse recent activity, and the alignment between the Commodity code label and actual procurement scope is weak — bidders evaluating this code should confirm directly with issuing agencies whether their molecular sieve products or services match the technical specifications in any given RFP or IFB rather than relying on code classification alone.