氨基羟基脲脉冲辐解研究  

Electron Beam Pulse Radiolysis of Hydroxysemicarbazide

作　　者：郭建华[1] 肖松涛[1] 叶国安[1] 欧阳应根[1] 赵晶[1] GUO Jian-hua;XIAO Song-tao;YE Guo-an;OUYANG Ying-gen;ZHAO Jing(China Institute of Atomic Energy,P.O.Box 275(26),Beijing 102413,China)

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2020年第4期226-234,I0003,共10页Journal of Nuclear and Radiochemistry

摘　　要：研究了脉冲辐解过程中氨基羟基脲与水辐解活性粒子(e-aq、·OH和·H)及单电子氧化剂·CO-3的反应动力学过程。反应近似为准一级反应,反应速率常数分别为k(e-aq)=1.41×10^8 L/(mol·s)、k(·OH)=1.05×10^10 L/(mol·s)、k(·H)=2.68×10^5 L/(mol·s)、k(·CO-3)=4.25×10^8 L/(mol·s)。其中氨基羟基脲与·OH的反应速率常数最大,故在辐解过程中其为主要反应。The kinetics of reactions between hydroxysemicarbazide(HSC)with water-radioactive particles(e-aq,·OH and·H)as well as single-electron oxidant·CO-3 during pulse radiolysis were studied.The reactions are approximately quasi-first-order reactions,and the reaction rate constants are k(e-aq)=1.41×10^8 L/(mol·s),k(·OH)=1.05×10^10 L/(mol·s),k(·H)=2.68×10^5 L/(mol·s),k(·CO-3)=4.25×10^8 L/(mol·s),respectively.Among them,the reaction rate constant of HSC and·OH is the largest,so the reaction of HSC and·OH is the main reaction during the pulse radiolysis process.

关 键 词：氨基羟基脲 脉冲辐解 反应动力学 反应速率常数 

分 类 号：O615.11[理学—无机化学]