Research output: Contribution to journal › Article › peer-review
Synthesis and Study of Bismuth(III) Oxalates Precipitated from Mineral Acid Solutions. / Timakova, E. V.; Timakova, T. E.; Afonina, L. I. et al.
In: Russian Journal of General Chemistry, Vol. 93, No. 9, 09.2023, p. 2295-2304.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Synthesis and Study of Bismuth(III) Oxalates Precipitated from Mineral Acid Solutions
AU - Timakova, E. V.
AU - Timakova, T. E.
AU - Afonina, L. I.
AU - Bulina, N. V.
AU - Titkov, A. I.
AU - Gerasimov, K. B.
AU - Volodin, V. A.
AU - Yukhin, Y. M.
N1 - The authors express their gratitude to the Center for Collective Use “High Technologies and Nanosystems Analytics” of Novosibirsk State University for the equipment provided for recording Raman spectra and to the Chemical Research Center for Collective Use of the Institute of Organic Chemistry SB RAS for carrying out spectral (IR) measurements. Публикация для корректировки.
PY - 2023/9
Y1 - 2023/9
N2 - Bismuth oxalates BiOH(C2O4), Bi2(C2O4)3·6H2O, Bi2(C2O4)3·7H2O, and Bi2(C2O4)3·8H2O were obtained by precipitation from solutions of bismuth in perchloric, nitric, and hydrochloric acids with addition of oxalic acid. The compositions of compound were confirmed by X-ray powder diffraction, chemical analysis, IR and Raman spectroscopy, and thermogravimetry. It has been shown that in the composition of bismuth(III) oxalate hydrates Bi2(C2O4)3·хH2O, bismuth cations are coordinated by the oxygen atoms of carboxyl groups of oxalate ions and water molecules in the same way, thus, in view of the structural features, compositions of the compounds can be described by the general formula {[Bi2(C2O4)3(H2O)4]∙(x–4)H2O}n. The conditions of oxidative thermolysis of BiOH(C2O4) and Bi2(C2O4)3·7H2O leading to the formation of tetragonal modification of bismuth oxide β-Bi2O3 were determined.
AB - Bismuth oxalates BiOH(C2O4), Bi2(C2O4)3·6H2O, Bi2(C2O4)3·7H2O, and Bi2(C2O4)3·8H2O were obtained by precipitation from solutions of bismuth in perchloric, nitric, and hydrochloric acids with addition of oxalic acid. The compositions of compound were confirmed by X-ray powder diffraction, chemical analysis, IR and Raman spectroscopy, and thermogravimetry. It has been shown that in the composition of bismuth(III) oxalate hydrates Bi2(C2O4)3·хH2O, bismuth cations are coordinated by the oxygen atoms of carboxyl groups of oxalate ions and water molecules in the same way, thus, in view of the structural features, compositions of the compounds can be described by the general formula {[Bi2(C2O4)3(H2O)4]∙(x–4)H2O}n. The conditions of oxidative thermolysis of BiOH(C2O4) and Bi2(C2O4)3·7H2O leading to the formation of tetragonal modification of bismuth oxide β-Bi2O3 were determined.
KW - bismuth(III) oxalate
KW - bismuth(III) oxide
KW - oxalate precursors
KW - precipitation
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85174466315&origin=inward&txGid=36ed2920079525f84f8204aa78d26ca1
UR - https://www.mendeley.com/catalogue/2a8c1086-899d-334c-828f-e3ba19799fd5/
U2 - 10.1134/S1070363223090116
DO - 10.1134/S1070363223090116
M3 - Article
VL - 93
SP - 2295
EP - 2304
JO - Russian Journal of General Chemistry
JF - Russian Journal of General Chemistry
SN - 1070-3632
IS - 9
ER -
ID: 59554150