Title: ideal dilute solution Long Title: IUPAC Gold Book - ideal dilute solution DOI: 10.1351/goldbook.I02934 Status: current Definition Dilute solution in which the solute may be regarded as obeying Henry's law, so that all the solute activity coefficients may be approximated to 1. Related Terms - Dilute solution: https://goldbook.iupac.org//terms/view/D01739 - Henry's law: https://goldbook.iupac.org//terms/view/H02783 - activity coefficients: https://goldbook.iupac.org//terms/view/A00116 Source - Physical Chemistry Division, unpublished Related Reference - PAC, 1994, 66, 533. 'Standard quantities in chemical thermodynamics. Fugacities, activities and equilibrium constants for pure and mixed phases (IUPAC Recommendations 1994)' on page 545 (https://doi.org/10.1351/pac199466030533) Other Outputs - html: https://goldbook.iupac.org/terms/view/I02934/html - json: https://goldbook.iupac.org/terms/view/I02934/json - xml: https://goldbook.iupac.org/terms/view/I02934/xml Citation: Citation: 'ideal dilute solution' 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.I02934 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-06-12T13:21:14+00:00