The rate of 15N/14N isotope exchange in NO-HNO3 system at different nitric oxide pressures

被引：6

作者：

Axente, D ^{[1
]}

Abrudean, M ^{[1
]}

Baldea, A ^{[1
]}

机构：

[1] Inst Isotope & Mol Technol, R-3400 Cluj Napoca, Romania

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 1997年 / 222卷 / 1-2期

关键词：

Oxide; Nitrogen; Physical Chemistry; Nitric Oxide; Inorganic Chemistry;

D O I：

10.1007/BF02034261

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The rate of nitrogen isotope exchange between NO and HNO3 has been measured as a function of nitric oxide pressure 0.1-0.4 MPa for 1 and 2 M.l(-1) HNO3. It is concluded that N-15/N-14 change rate in NO-HNO3 system has a linear dependence of NO pressure as indicated by rate measurements at different NO partial pressure and constant overall pressure, by adding helium in reactor. Using the rate law: R = k[HNO3](2)[N2O3] the N-15/N-14 exchange rates for nitric acid concentrations 1.5-10 M.l(-1) were calculated.

引用

页码：149 / 152

页数：4

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