Title: partial mass density Long Title: IUPAC Gold Book - partial mass density DOI: 10.1351/goldbook.P04415 Status: current Index: quantity Definition Change in mass due to addition of a small amount of component to a system divided by the change in volume of the system. The systematic name is partial volumic mass. Related Terms - systematic name: https://goldbook.iupac.org//terms/view/S06236 - volumic: https://goldbook.iupac.org//terms/view/V06651 Source - PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 986 (https://doi.org/10.1351/pac199668040957) Other Outputs - html: https://goldbook.iupac.org/terms/view/P04415/html - json: https://goldbook.iupac.org/terms/view/P04415/json - xml: https://goldbook.iupac.org/terms/view/P04415/xml Citation: Citation: 'partial mass density' 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.P04415 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: 2026-04-27T16:00:47+00:00