Title: equivalent hydrodynamic volume
Long Title: IUPAC Gold Book - equivalent hydrodynamic volume
DOI: 10.1351/goldbook.12257
Status: current

Definition
Volume of the hydrodynamically equivalent sphere.

Note
The molar equivalent hydrodynamic volume determined using measurements of intrinsic viscosity, \([\eta]\), is \(V_{\eta}\), where \(V_{\eta} = [\eta]M/N_{\rm{A}}\), with \(M\) the molar mass and \(N_{\rm{A}}\) the Avogadro constant.

Source
- PAC, 2015, 87, 71. 'Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)' on page 103 (https://doi.org/10.1515/pac-2013-0201)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/12257/html
- json: https://goldbook.iupac.org/terms/view/12257/json
- xml: https://goldbook.iupac.org/terms/view/12257/xml

Citation: Citation: 'equivalent hydrodynamic volume' 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.12257
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Accessed: 2026-04-18T09:39:33+00:00