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Amount of substance and the proposed redefinition of the mole

Milton, M. J. T. and Mills, I. (2009) Amount of substance and the proposed redefinition of the mole. Metrologia, 46 (3). pp. 332-338. ISSN 0026-1394

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To link to this item DOI: 10.1088/0026-1394/46/3/022


There has been considerable discussion about the merits of redefining four of the base units of the SI, including the mole. In this paper, the options for implementing a new definition for the mole based on a fixed value for the Avogadro constant are discussed. They are placed in the context of the macroscopic nature of the quantity amount of substance and the opportunity to introduce a system for molar and atomic masses with unchanged values and consistent relative uncertainties.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:7296
Uncontrolled Keywords:mole, SI, redefinition, substance

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