Definition of the mole (IUPAC Recommendation 2017)

Author:

Marquardt Roberto1,Meija Juris2,Mester Zoltán2,Towns Marcy3,Weir Ron4,Davis Richard5,Stohner Jürgen67

Affiliation:

1. Laboratoire de Chimie Quantique, Institut de Chimie , Université de Strasbourg , 1 Rue Blaise Pascal , F-67008 Strasbourg , France

2. National Research Council Canada, Measurement Science and Standards , 1200 Montreal Road M-12 , Ottawa, ON K1A 0R6 , Canada

3. Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette, IN , USA

4. Department of Chemistry and Chemical Engineering, Royal Military College of Canada , P.O. Box 17000, Stn. Forces , Kingston, ON K7K 7B4 , Canada

5. Bureau International des Poids et Mesures, Pavillon de Breteuil F-92312 , Sèvres Cedex , France

6. ZHAW Zürich University of Applied Sciences , ICBT Institute for Chemistry and Biotechnology , Einsiedlerstrasse 31 , CH 8820 Wädenswil , Switzerland

7. Guest scientist at: ETHZ Swiss Federal Institute of Technology, Laboratory for Physical Chemistry, ETH Hönggerberg , Wolfgang-Pauli-Strasse 10 , CH-8092 Zürich , Switzerland , e-mail:

Abstract

Abstract In 2011 the General Conference on Weights and Measures (CGPM) noted the intention of the International Committee for Weights and Measures (CIPM) to revise the entire International System of Units (SI) by linking all seven base units to seven fundamental physical constants. Of particular interest to chemists, new definitions for the kilogram and the mole have been proposed. A recent IUPAC Technical Report discussed these new definitions in relation to immediate consequences for the chemical community. This IUPAC Recommendation on the preferred definition of the mole follows from this Technical Report. It supports a definition of the mole based on a specified number of elementary entities, in contrast to the present 1971 definition.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry

Reference17 articles.

1. CGPM. Comptes Rendus de la neuvième Conférence Générale des Poids et Mesures (1948). Résolution 6, BIPM, URL http://www.bipm.org/en/CGPM/db/9/6/ (1949).

2. CGPM. Comptes Rendus des séances de la dixième Conférence Générale des Poids et Mesures (1954). Résolution 6, BIPM, URL http://www.bipm.org/en/CGPM/db/10/6/ (1955).

3. CGPM. Comptes Rendus des séances de la onzième Conférence Générale des Poids et Mesures (1960). Résolution 12, BIPM, URL http://www.bipm.org/en/CGPM/db/11/12/ (1961).

4. CGPM. Comptes Rendus des séances de la quatorzième Conférence Générale des Poids et Mesures (1971). Résolution 3, BIPM, URL http://www.bipm.org/en/CGPM/db/14/3/ (1972).

5. BIPM. Le Système international d’unités/The International System of Units (Brochure sur le SI/SI brochure), 2006, BIPM, 8 edition (2006).

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