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Microcalorimetric Study on the Oscillating System of Two-phase Reaction of Aqueous Acid with Primary Amine in Chloroform 被引量:5
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作者 张洪林 于秀芳 +3 位作者 鲁成学 孙思修 古国华 傅洵 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2003年第1期36-39,共4页
It has been found that the two-phase reactions of aqueous HCl, HOAc or H_3PO_4 with primary amine N_ 1923 in chloroform are oscillating reactions. Their power-time curves were measured by the titration microcalorimet... It has been found that the two-phase reactions of aqueous HCl, HOAc or H_3PO_4 with primary amine N_ 1923 in chloroform are oscillating reactions. Their power-time curves were measured by the titration microcalorimetric method, and the induction period (t_ in). The first oscillating period (t_ p.1) and the second oscillating period (t_ p.2) were determined. The apparent activating parameters and the orders of the oscillating systems were calculated and the following relationships were established: for the oscillating system of hydrochloric acid t_ in∝c 0.147_ HClexp(1.35×10 3T), t_ p.1∝c 0.241_ HCl· exp(4.33×10 3T), t_ p.2∝c 0.290_ HClexp(5.59×10 3T); for the oscillating system of acetic acid, t_ in∝c 0.883_ HOAcexp(2.32×10 3T), t_ p.1∝c 0.399_ HOAc· exp(4.50×10 3T), t_ p.2∝c 0.301_ HOAcexp(5.88×10 3T); for the oscillating system of phosphoric acid, t_ in∝c 1.14_ H_3PO_4exp(7.70×10 4T), t_ p.1∝c 1.42_ H_3PO_4exp(1.14×10 4T), t_ p.2∝c 1.47_ H_3PO_4exp(1.27×10 4T). 展开更多
关键词 oscillating system hydrochloric acid acetic acid phosphoric acid primary amine n_ 1923 titration microcalorimetric method
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伯胺N1923氯仿萃取盐酸和磷酸振荡反应的量热法研究
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作者 于秀芳 张洪林 《应用化学》 CAS CSCD 北大核心 2001年第11期927-929,共3页
The power time curves of the extraction oscillation reaction were determined at different temperatures for the extraction of hydrochloric acid and phosphoric acid by primary amine N1923 in chloroform, using a titratio... The power time curves of the extraction oscillation reaction were determined at different temperatures for the extraction of hydrochloric acid and phosphoric acid by primary amine N1923 in chloroform, using a titration microcalorimetric method. The apparent activation energy were calculated from the induction period( t in ), the first oscillation period( t p.1 ) and the second oscillation period( t p.2 ). The oscillation behavior were discussed. 展开更多
关键词 萃取振荡反应 伯胺n1923 盐酸 磷酸 微量量热法 氯仿
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伯胺萃取醋酸振荡体系的微量热法研究 被引量:1
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作者 张洪林 于秀芳 《物理化学学报》 SCIE CAS CSCD 北大核心 2001年第9期855-858,共4页
用注入 /滴定微量热计测定了伯胺 N_(1923)氯仿液萃取醋酸的萃取振荡反应体系的热功率-时间曲线 ,得到了萃取振荡反应体系的诱导期 ,第一振荡周期和第二振荡周期 .计算了表观活化参数 ,建立了诱导期与振荡周期和起始醋酸浓度、温度间的... 用注入 /滴定微量热计测定了伯胺 N_(1923)氯仿液萃取醋酸的萃取振荡反应体系的热功率-时间曲线 ,得到了萃取振荡反应体系的诱导期 ,第一振荡周期和第二振荡周期 .计算了表观活化参数 ,建立了诱导期与振荡周期和起始醋酸浓度、温度间的关系式 . 展开更多
关键词 萃取 振荡体系 伯胺n1923 醋酸 注入/滴定微量热法 氯仿 化学振荡
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