Accreditation and Quality Assurance

, 16:467

The mole is not an ordinary measurement unit

Discussion Forum

DOI: 10.1007/s00769-011-0804-z

Cite this article as:
Johansson, I. Accred Qual Assur (2011) 16: 467. doi:10.1007/s00769-011-0804-z


In this paper, it is argued that the SI system has not carefully enough taken into account the differences that exist between stoichiometry and physics, and because of this neglect forced the kind-of-quantity amount of substance into a false form. The mole is not a unit such as the metre, the kilogram, and the second. It is a “unit” only in the sense in which purely mathematical scaling factors can be called units.


MoleSI systemAvogadro numberAvogadro constantStoichiometry

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Umeå UniversityLundSweden