Conclusions
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1.
Complexes of the REE, Y, and Sc with hydroxyethylethylenediaminetriacetic acid have been isolated in solid form. The hydrate compositions of the complexes have been determined.
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2.
The La and Pr complexes form hydrates of different compositions. The LnL hydrates form slightly nonisostructural groups in the series La-Lu.
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3.
According to thermographic analysis data, the hydrate water in the LnL·nH2O complexes of different hydrate compositions is not bonded with the same firmness.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.1, pp. 10–13, January, 1976.
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Filippova, É.D., Mitrofanova, N.D., Martynenko, L.I. et al. Hydrate compositions of hydroxyethylethylenediaminetriacetates of the rare-earth elements. Russ Chem Bull 25, 4–7 (1976). https://doi.org/10.1007/BF00925607
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DOI: https://doi.org/10.1007/BF00925607