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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2020, 11 (4), P. 462–467

Solubility phase equilibrium in ternary system fullerenol C60(OH)24 and praseodymium salt: PrCl3–C60(OH)24–H2O at 25 °C

G. A. Glushnev – St. Petersburg State Technological Institute (Technical University), Moskovsky prospect, 26, St. Petersburg, 190013, Russia
Ayat Kanbar – St. Petersburg State Technological Institute (Technical University), Moskovsky prospect, 26, St. Petersburg, 190013, Russia
V. A. Keskinov – St. Petersburg State Technological Institute (Technical University), Moskovsky prospect, 26, St. Petersburg, 190013, Russia; keskinov@mail.ru
N. A. Charykov – St. Petersburg State Technological Institute (Technical University), Moskovsky prospect, 26, St. Petersburg, 190013; St. Petersburg Electrotechnical University “LETI”, ul. Professora Popova 5, 197376 St. Petersburg, Russia; Pavlov First St. Petersburg StateMedical University L’va Tolstogo str. 6–8 St. Petersburg, 197022, Russia
K. N. Semenov – St. Petersburg State Technological Institute (Technical University), Moskovsky prospect, 26, St. Petersburg, 190013; St. Petersburg State University, 7/9 Universitetskaya emb., St. Petersburg, 199034;
Z. K. Shaimardanov – D. Serikbayev East Kazakhstan state technical university, A. K. Protozanov Street, 69, Ust-Kamenogorsk, 070004, The Republic of Kazakhstan
B. K. Shaimardanova – D. Serikbayev East Kazakhstan state technical university, A. K. Protozanov Street, 69, Ust-Kamenogorsk, 070004, The Republic of Kazakhstan
N. A. Kulenova – D. Serikbayev East Kazakhstan state technical university, A. K. Protozanov Street, 69, Ust-Kamenogorsk, 070004, The Republic of Kazakhstan
D. G. Letenko – St.Petersburg State University of Architecture and Civil Engineering (SPSUACE), 2nd Krasnoarmeiskaya St. 4, 190005 St. Petersburg, Russia

Solubility diagram was investigated by the method of saturation in ampules at 25 ± 0:02 °C for 4 hours. The solubility diagram of the PrCl3–C60(OH)24–H2O ternary system at 25 °C occurs as simple eutonics, consisting of two branches, corresponding to the crystallization of crystalhydrates: PrCl3 · 7H2O and C60(OH)24 · 18H2O. The diagram contains one non-variant point each – eutonics, which corresponds to saturation with pair of crystal-hydrates simultaneously. The diagram also contains very short branch of PrCl3 · 7H2O crystallization, and long branch of C60(OH)24 · 18H2O, where the effect of fullerenol salt-out is distinctly observed.

Keywords: fullerene C60, arginine, octo-adduct, lutetium chloride, solubility diagram, ternary system, simple eutonic.

PACS 61.48.+c

DOI 10.17586/2220-8054-2020-11-4-462-467

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