Summary
Typical precipitation curves of various metal phosphates have been obtained using the turbidimetric technique. The following systems have been investigated: Al(NO3)3-K3PO4, Al(NO3)3-KH2PO4, Al(NO3)3NaH2PO4, FeCl3-K3PO4, FeCl3-(NH4)2HPO4, FeCl3K2HPO4, FeCl3-KH2PO4, FeCl3-NaH2PO4, La(NO3)3K3PO4,La(NO3)3-K2HPO4,La(NO3)3-KH2PO4,La(NO3)3NaH2PO4 and Th(NO3)4-K2HPO4. Typical precipitation curves indicated concentration ranges of phosphate precipitation and of complex solubility.
Zusammenfassung
Typische Fällungskurven verschiedener Metallphosphate, die mittels Trübungsmessungen erhalten wurden, wurden graphisch dargestellt. Die folgenden Systeme wurden untersucht: Al(NO3)3-K3PO4,Al(NO3)3KH2PO4, Al(NO3)3-NaH2PO4, FeCl3-K3PO4, FeCl3(NH4)2HPO4, FeCl3-K2HPO4, FeCl3-KH2PO4, FeCl3NaH2PO4, La(NO3)3-K3PO4, La(NO3)3-K2HPO4, La(NO3)3-KH2PO4, La(NO3)3-NaH2PO4 und Th(NO3)4K2HPO4. Typische Fällungskurven zeigten Konzentrationsgebiete, in welchen die Metallphosphate gefällt werden, sowie Konzentrationen, die zur Komplexbildung führten.
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Supported in part by the U.S. Army Research Office, Contract No. DA-ORD-10.
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Matijević, E., Milić, I. On precipitation effects of aluminum, lanthanum, iron (III), and thorium phosphates. Kolloid-Z.u.Z.Polymere 188, 129–136 (1963). https://doi.org/10.1007/BF01499905
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DOI: https://doi.org/10.1007/BF01499905