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has been cited by the following article:

• TITLE: Identification and Quantification of Intracoordination Water in Insoluble Pectinates Cu2+ and Pb2+

  AUTHORS: Nelli Shalikovna Kajsheva, Alexander Shalikovich Kajshev, Borisovna Anna Samoryadova, Kristina Vladimirovna Smolenskaya, Galina Vladimirovna Smolenskaya

  KEYWORDS: Coordination Connections, Pectinates of Metals, Ions of Copper (II), Ions of Lead (II), Composition, Derivatography, Potentiometry

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.8 No.3, March 13, 2017

  ABSTRACT: By derivatography in insoluble pectins Cu2+ (РCu2+) and Pb2+ (РPb2+), the presence of “a high-temperature component” (150°C- 165°C) is established. During potentiometric alkalimetric titration of РCu2+ and РPb2+, endpoints are established at рН accordingly 4.87 and 4.95, proving acid properties of PM. Obtained data show the presence of water in the internal sphere of PM. Considering the loss of this water and the known ratio of metal cations and monomers of pectin (L-), the simplest formulas of pectins are established: [Cu(L-)2(H2O)2], [Pb(L-)2(H2O)4].