Adipic-1′,6′-bis(4-halogenpheny1 hydrazine) has been synthesized in ice bath with adipic chloride and 4-bromophenyl hydrazine made by ourselves.At the same time,adipic-1′,6′-bis(4-halogenpheny1 hydrazine) is synth...Adipic-1′,6′-bis(4-halogenpheny1 hydrazine) has been synthesized in ice bath with adipic chloride and 4-bromophenyl hydrazine made by ourselves.At the same time,adipic-1′,6′-bis(4-halogenpheny1 hydrazine) is synthesized firstly with oxidation system NaBrO3/H2SO4.The products are confirmed by elemental analysis,IR and 1HNMR.The yields of adipic-1′,6′-bis(4-halogenpheny1 hydrazine) is 83-92%.展开更多
In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution...In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution of Na2B4O7NaOH.The molar absorptivity is 256×105L·mol-1·cm-1.Beer’s law is obeyed in the concentration range of 0～12μg/25mL for Mercury(Ⅱ).The results are in agreement with those determined by the conventional method.This new method was used to determine trace mercury in wastewater.展开更多
文摘Adipic-1′,6′-bis(4-halogenpheny1 hydrazine) has been synthesized in ice bath with adipic chloride and 4-bromophenyl hydrazine made by ourselves.At the same time,adipic-1′,6′-bis(4-halogenpheny1 hydrazine) is synthesized firstly with oxidation system NaBrO3/H2SO4.The products are confirmed by elemental analysis,IR and 1HNMR.The yields of adipic-1′,6′-bis(4-halogenpheny1 hydrazine) is 83-92%.
文摘In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution of Na2B4O7NaOH.The molar absorptivity is 256×105L·mol-1·cm-1.Beer’s law is obeyed in the concentration range of 0～12μg/25mL for Mercury(Ⅱ).The results are in agreement with those determined by the conventional method.This new method was used to determine trace mercury in wastewater.
