Title: ultrafiltration
Long Title: IUPAC Gold Book - ultrafiltration
DOI: 10.1351/goldbook.U06548
Status: current

Definition
A separation process whereby a solution containing a solute of molecular size significantly greater than that of the solvent molecule is removed from the solvent by the application of a hydraulic pressure which forces only the solvent to flow through a suitable membrane, usually having a pore size in the range \(0.001{-}0.1\ \unicode[Times]{x3BC}\rm{m}\).

Related Term
- membrane: https://goldbook.iupac.org//terms/view/MT06878

Source
- PAC, 1992, 64, 143. 'Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)' on page 167 (https://doi.org/10.1351/pac199264010143)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/U06548/html
- json: https://goldbook.iupac.org/terms/view/U06548/json
- xml: https://goldbook.iupac.org/terms/view/U06548/xml

Citation: Citation: 'ultrafiltration' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.U06548
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Accessed: 2026-04-19T03:57:07+00:00