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
收藏
页码：149 / 152
页数：4
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