Measurement Techniques

, Volume 14, Issue 7, pp 1079–1080 | Cite as

The kilomole

  • S. V. Gorbatsevich
  • E. F. Dolinskii
  • M. F. Yudin
Physicochemical Measurements


  1. 1.

    If the quantity of any substance is characterized by its mass, then the kilomole as a unit of the quantity of matter will have different sizes for different substances.

  2. 2.

    If the quantity of a substance is assumed to be the number of molecules contained in it, and since this number changes in the case of reactions of disintegration or synthesis in a closed system, the amount of matter will change according to the above definition, and this contradicts the basic law of the conservation of matter. Thus, also in this case the kilomole cannot be accepted as a unit of the quantity of matter.

  3. 3.

    If the problem of establishing a nonsystem unit is considered, it is then advisable to introduce a unit of mass equal to 1/12 of the mass of a nuclide of12C, which is the base of the atomic mass scale.


Thus, although the kilomole is convenient for chemical computations entailing the mass of substances (in kilograms), nevertheless, it has different sizes for different substances (nuclides) and, therefore, it cannot be considered as a unit of any system of units, including the SI.


Physical Chemistry Analytical Chemistry Closed System Mass Scale Chemical Computation 
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Literature cited

  1. 1.
    Recommendation U1 (1969) of the Consultative Committee of Units of the International Committee of Weights and Measures (1969).Google Scholar
  2. 2.
    Draft All-Union State Standard on “Units of physical quantities,” Izmeritel'. Tekh., No. 2 (1970).Google Scholar
  3. 3.
    N. A. Glinka, General Chemistry [in Russian], Khimiya, Moscow-Leningrad (1965).Google Scholar
  4. 4.
    Handbook 62, NBS, USA (1957).Google Scholar
  5. 5.
    M. F. Yudin, Dosimetry of Photon Radiations [in Russian], Izd. Standardtov, Moscow (1970).Google Scholar
  6. 6.
    Radiation Quantities and Units, ICRU, Report 11 (1968).Google Scholar

Copyright information

© Consultants Bureau 1971

Authors and Affiliations

  • S. V. Gorbatsevich
  • E. F. Dolinskii
  • M. F. Yudin

There are no affiliations available

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