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| | The two species of crystal of ferrous cysteine have been prepared successfully for the first time.The elemental analysis results indicated that the two complexes have the same compositions as confirmed by solution analysis.By means of infrared spectra and x ray photoelectron spectra of the two complexes,their structure have been confirmed. | | 本文首次成功地制备出半胱氨酸合铁 ( )的两种晶体 ,并通过元素分析确定了两种配合物的组成 ,其结果与前人经过溶液分析确定的组成相同。经红外光谱、X-光电子能谱确定了两种配合物的结构 | | 文摘来源 | | The mass transfer and reaction kinetics of the absorptio n of NO with aqueous ferrous cysteine solutions were studied in a double-stirre d cell.The result indicated that the NO absorption with Fe(Ⅱ) (CyS)_2 was a fast pseudo-first-order reaction.The second-order rate con stant was determined from experimental results and found to be 1.18×105m 3·mol-1·s-1 at pH 8.0 and 323 K.Three kinds of theoretical mode ls were used in this mass transfer with chemical reaction process, and the same expression ... | | 以半胱氨酸亚铁络合物Fe(Ⅱ)(CyS)2作为吸收剂,在双搅拌釜内探讨了NO吸收反应动力学.实验结果表明:在pH=8·0,T=323K实验条件下,半胱氨酸亚铁溶液吸收NO气体为快速拟一级反应,得到二级反应速率常数k2=1·18×105m3·mol-1·s-1.3种理论模型即膜模型、Danckwerts表面更新模型、Higbie渗透模型应用于该拟一级反应,增强因子的计算结果是相同的.实验获得的增强因子与模型计算值吻合较好,最大相对偏差不超过13%. | | 文摘来源 | |   |
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