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A.L. Kanibolotskii V.A. Mikhailov V.A. Savelova 《Russian Journal of Organic Chemistry》2001,37(2):198-201
Reaction of bromine with N,N,N',N'-tetramethyloxamide results in dibromobromate of 3-methyl-5-dimethylimmoniooxazolidin-4-one (in an open system) and in dibromobromate of 4,5,-dibromo-1,3-dimethylimidazolium (in a closed system). 相似文献
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Mioduski T 《Talanta》1980,27(3):299-303
The stepwise stability constants for the protonation of hydroxyethylidenediphosphonic acid (HEDP), diethylenetriaminopenta-acetic acid (DTPA) and diaminocyclohexanetetra-acetic acid (DCTA) have been determined potentiometrically with a hydrogen electrode at an ionic strength of 1 (KCl) and at 10-35 degrees . The data were treated by a least-squares method for estimation of DeltaH and DeltaS values. 相似文献
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N,N,N‘,N’—四异丁基—3—氧—戊二酰胺萃取铀钍的研究 总被引:3,自引:0,他引:3
放射性废液中含有大量的钢系和铜系元素,众多学者作了大量研究工作。如焦荣洲等[’]用三烷基氧磷(TRPO)、赵沪根等[’]用DHDECMP从放射性废液中分离啊系和湖系元素进行了系统研究。但所用革取剂均为含磷化合物,使用后被放射性污染的革取剂最终处置困难。为此面临寻求革取效率高、价廉,又便于最终处置的新型革取剂的任务。文章pl合成了二酚胺类化合物(R‘RZNCO)。R3系列车取剂,它能有效地从放射性废液中革取分离回收钢系与调系元素。本文探讨了其中的N,N,M,NW四异了基一3一氧一戊二酚胺(简写为L… 相似文献
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SynthesesandCharacterizationofMetalComplexesOfL-Lysine-N,N,N',N'-tetraaceticAcidandL-Lysine-N,N,N',N'-tetramethylenephOsphoni... 相似文献
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Russian Journal of General Chemistry - The reaction between pyrocatechol and N,N,N',N'-tetraethylphenylphosphonous diamide was studied. It was found that the main reaction products are... 相似文献
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H(+)-ion selective electrodes (H(+)-ISE) based on N,N,N',N'-tetrabenzylalkylenediamine (alkylene: methylene, ethylene, propylene, hexylene) are prepared. We are compared with their response potentials to carbon numbers between diamino groups. They were showed linear selective to hydrogen ion in the range of pH 1.5-9.0, 2.5-9.0, 3.5-9.0 and 4.0-9.0, and their Nernstian slopes were 57.3, 53.5, 57.4 and 56.1 mV pH(-1) at 20+/-0.2 degrees C (theoretical value: 58.2 mV pH(-1)), respectively. The interference effect on the cations were measured to alkali metal ions, alkaline earth metals ions. Selectivity coefficients were measured by the mixed-solution method. Among all electrodes the N,N,N',N'-tetrabenzylmethylenediamine (TBMDA)-based electrode has shown the best selectivity in acidic solution. 相似文献
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