The Solid-State Substitution Reaction between Halogenoacetates and Metal Halides

Author: Epple M.   Seifert R.  

Publisher: Academic Press

ISSN: 0022-4596

Source: Journal of Solid State Chemistry, Vol.121, Iss.1, 1996-01, pp. : 129-132

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Halogenoacetates react with metal halides in the solid state via halogen exchange. This was studied in detail for the reaction between sodium chloroacetate and sodium iodide to sodium iodoacetate and sodium chloride. The reaction was followed at 50, 70, and 90#°C by discontinuous proton NMR spectroscopy and at 90#°C by in situ high-temperature X-ray powder diffractometry (TXRD). The reaction leads to an incorporation of iodoacetate into the chloroacetate lattice. This destabilizes the lattice and accelerates the thermal decomposition of the sodium halogenoacetates.