02694 IUPAC Gold Book - gravimetric method 10.1351/goldbook.G02694 G02694 current 1 A determination by weight; e.g. in the older method of $\ce{Cl^{−}}$ ion determination, a weighed amount of sample is dissolved in water, $\ce{AgNO3}$ solution added, $\ce{AgCl}$ is precipitated, dried and weighed. From the known mass fraction of silver in $\ce{AgCl}$, the weights of the initial sample and that of the $\ce{AgCl}$ precipitated, the percentage of chlorine in the sample can be calculated readily. mass fraction https://goldbook.iupac.org//terms/view/M03722 weight https://goldbook.iupac.org//terms/view/W06668 PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2192 (https://doi.org/10.1351/pac199062112167) https://goldbook.iupac.org/terms/view/G02694/html https://goldbook.iupac.org/terms/view/G02694/json https://goldbook.iupac.org/terms/view/G02694/plain Citation: 'gravimetric method' 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.G02694 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-04-19T03:50:59+00:00