Title: surface region
Long Title: IUPAC Gold Book - surface region
DOI: 10.1351/goldbook.S06187
Status: current

Definition
The tridimensional region, extending from the free surface of a condensed phase towards the interior, where the properties differ from the bulk. The term surface may also be used in this sense.

Related Term
- surface: https://goldbook.iupac.org//terms/view/S06154

Source
- PAC, 1983, 55, 1251. 'Interphases in systems of conducting phases (Provisional)' on page 1253 (https://doi.org/10.1351/pac198355081251)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/S06187/html
- json: https://goldbook.iupac.org/terms/view/S06187/json
- xml: https://goldbook.iupac.org/terms/view/S06187/xml

Citation: Citation: 'surface region' 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.S06187
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Accessed: 2026-06-29T03:50:36+00:00