Abstract
The present chapter deals with the formulation of an important theory, that of chemical types. The first to be established was the ammonia type by Hofmann (1849), the second the water type by Williamson (1850). Two further types, hydrogen and hydrochloric acid, were added by Gerhardt (1853), who referred organic compounds to the four types.
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© 1964 J. R. Partington
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Hofmann, A.W. (1964). The Theory of Types. In: A History of Chemistry. Palgrave, London. https://doi.org/10.1007/978-1-349-00554-3_14
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DOI: https://doi.org/10.1007/978-1-349-00554-3_14
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-00556-7
Online ISBN: 978-1-349-00554-3
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