Open AccessHOMOLOGOUS SERIES of CHEMICAL COMPOUNDS: THRЕЕ–COMPONENT SYSTEMS (Li+ – Ti4+ – O2–), (Na+ – Ti4+ – O2–), (K+ – V5+ – O2–), (Ba2+ – Cu2+ – O2–) and FOUR–COMPONENT SYSTEM {Li+ – Fe2+ – (PO4)3–}
Author(s) -
Yurii K. Undalov,
AUTHOR_ID,
E. I. Terukov,
Д. В. Агафонов,
A. V. Bobyl,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
izvestiâ sankt-peterburgskogo gosudarstvennogo tehnologičeskogo instituta (tehničeskogo universiteta)
Language(s) - English
Resource type - Journals
ISSN - 1998-9849
DOI - 10.36807/1998-9849-2021-59-85-26-36
Subject(s) - homologous series , component (thermodynamics) , chemistry , crystallography , series (stratigraphy) , chemical composition , stereochemistry , organic chemistry , physics , biology , thermodynamics , paleontology
The paper presents for the first time a method for calculating the formulas of homological series of chemical compounds of systems (Li+ – Ti4+ – O2–), (Na+ – Ti4+ – O2–), (K+ – V5+ – O2–), {Li+ – Fe2+ – (PO4)3–}, (Ba2+ – Cu2+ – O2). The calculation method is confirmed by a sufficiently large number of experimentally obtained (taken from literature) formulas of chemical compounds: 7 compounds – in the system (Li+ – Ti4+ – O2–), 11 compounds – in the system (Na+ – Ti4+ – O2–), 5 compounds – in the system (K+ – V5+ – O2–), 8 compounds – in the system (Ba2+ – Cu2+ – O2). The formulas of the branches of chemical compounds of the homological series of the corresponding systems have the form: Li4Ti4+nO2(n + 1) (homologues are enriched with TiO2), Na4Ti4+nO2(n + 1) (homologues are enriched with TiO2), K10V5+2nO5(n + 1) (homologues are enriched with V2O5), Li6Fe3n(PO4)2(n + 1) { homologues are enriched with Fe3(PO4)2}, BaCunOn + 1 (homologues are enriched with CuO) и BanCuOn + 1 (homologues are enriched with BaO).