Nitric acid adduct formation during crystallization of barium and strontium nitrates and their co-precipitation from nitric acid media

被引：3

作者：

Mishina, N. E. ^{[1
]}

Zilberman, B. Ya. ^{[1
]}

Lumpov, A. A. ^{[1
]}

Koltsova, T. I. ^{[1
]}

Puzikov, E. A. ^{[1
]}

Ryabkov, D. V. ^{[1
]}

机构：

[1] Khlopin Radium Inst, St Petersburg 194021, Russia

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 304卷 / 01期

关键词：

Barium; Strontium; Nitrate; Solubility; Crystallization; Adducts; Co-precipitation; Solid solution;

D O I：

10.1007/s10967-014-3691-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The molar solubilities of Ba, Sr and Pb nitrates in nitric acid as a function of total nitrate concentration is presented and described by the mass action law, indicating on formation of the adducts with nitric acid. Precipitates of Ba(NO3)(2) and Sr(NO3)(2) crystallized from nitric acid were studied by ISP OES and IR spectroscopy. The data obtained confirmed formation of metastable adducts with nitric acid. IR and X-ray diffraction studies of the mixed salt systems indicated conversion of the mixed salts into (Ba,Sr)(NO3)(2) solid solution of discrete structure in range of total nitrate ion concentration similar to 6 mol/L.

引用

页码：387 / 393

页数：7

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