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公开(公告)号:US06241864B1
公开(公告)日:2001-06-05
申请号:US09407812
申请日:1999-09-28
IPC分类号: G02N2726
CPC分类号: G01N27/49
摘要: A potentiostatic analyzer for active halogens in conducting solutions that contain also the corresponding halide comprises, in combination: a) a concentration-to-current transducer, which is an electrolytic cell; b) means for providing a controlled flow of the solution being analyzed through the cell; and c) a potentiostatic transmitter for controlling the electrodes of the electrolytic cell.
摘要翻译: 还包含相应的卤化物的导电溶液中的活性卤素的恒电位分析仪包括:a)作为电解池的浓度 - 电流换能器; b)用于提供通过电池分析的溶液的受控流动的装置; 和c)用于控制电解池电极的恒电位发射器。
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公开(公告)号:US06399835B1
公开(公告)日:2002-06-04
申请号:US09543791
申请日:2000-04-06
申请人: Ariel Ewenson , David Itzhak , Miriam Freiberg Bergstein , Asher Shushan , Bertha Croitoru , David Beneish , Naim Faza
发明人: Ariel Ewenson , David Itzhak , Miriam Freiberg Bergstein , Asher Shushan , Bertha Croitoru , David Beneish , Naim Faza
IPC分类号: C07C4561
CPC分类号: C07C201/12 , B01J27/08 , C07B37/04 , C07B39/00 , C07B41/06 , C07C2/70 , C07C41/22 , C07C45/46 , C07C45/63 , C07C2527/08 , C07C2527/138 , C07C2527/173 , Y02P20/582 , C07C49/84 , C07C47/55 , C07C205/12 , C07C43/225
摘要: Processes for the electrophilic substitution of aromatic compounds, such as alkylation, with a desired substituent are disclosed. The processes include contacting the aromatic compound, a precursor of the desired substituent and an aqueous reagent containing zinc halide at elevated temperatures such as above 50° C.
摘要翻译: 公开了芳族化合物的亲电取代,例如烷基化的所需取代基的方法。 这些方法包括使芳族化合物,所需取代基的前体和含有卤化锌的水性试剂在高于50℃的高温下接触。
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